AR/AI glasses buying guide

Note from a filming and content perspective. All five products have a green monochrome text HUD, so the display itself is visually weak. Scenes that can be shown on video are concentrated on moments when translated captions appear, teleprompter use, and physical actions such as swapping the battery. Only GO3 and Rokid can produce camera footage usable as content.

Totals are based on prices confirmed on 2026-10-30, excluding tax and shipping. Whether prescription lens cost is included is stated in each row. GO3 is at the Halloween Sale discounted price, so it needs to be rechecked after the sale ends (2026-11-02 08:00 EDT).

When prices need to be rechecked. For Rokid and iO, regional list prices and exchange rates; for G2, when the polarized clip will be supplied in Korea; and for Hey 2, the Korean Pro price in KRW must be rechecked at the time of purchase. Unconfirmed items for prescriptions and Korean-language UI can be settled only through hands-on testing and official inquiries.

Prices are as checked on 2026-10-30, excluding tax and duties. The GO3 prices are discounted prices from the Halloween Sale (2026-10-15~11-02 08:00 EDT), so they may change after the promotion ends.

INMO GO3 - 6 Official Bundles, All With the Same Base Package

Base package (common to all bundles): the main unit, 1 installed battery + 1 spare battery (270mAh), a 1,300mAh charging case, a cleaning cloth, a manual, and a camera cover sticker. The official FAQ states that it is included in every bundle. Whether a charging cable is included is unconfirmed. The bundle savings against the sum of individual prices are +Ring4 $22, +Speaker $1 (effectively none), +Ring4+Speaker $22, +sunglasses $9, and Full Kit $31.

• Ring4 (standalone $119, list price $139). It uses finger gestures to turn teleprompter pages, pause captions, answer calls, summon the AI assistant, and control recording. It is needed for presentations or quiet meeting rooms where you want to operate without touching your face, and it is not essential if temple touch and voice are enough. The official reviews are 2 ratings at 4.5/5, with a request for a sensitivity setting. Currently only Size L is on sale, and it is Final Sale (no returns).
• Speaker (standalone $49, list price $69). An external speaker for two-way translation that says your words aloud in the other person's language, using an AI clone of your own voice. It is practically needed for face-to-face conversation with foreigners, and if you only read captions, a phone speaker can substitute. It is praised as a differentiator for two-way communication, but the inconvenience of manually selecting the output device before each conversation is recorded. Voice output covers 36 languages, a different range from the 127 languages of lens translation.
• Magnetic sunglasses clip (standalone $29). Polarized TAC lenses, 2.15g. Used to block outdoor glare and improve screen readability in sunlight. The official reviews are 4.8/5 (25 ratings), the most consistently praised, but there are 2 comments that it looks thin and fragile, and it is excluded from the warranty.
• Spare battery and charging case ($49 each, Power Bundle $98). For long translation sessions, meetings, and travel. The swappable battery is the most universal praise across all reviews, but swapping causes a reboot of about 5 seconds, so it is not completely uninterrupted. The Power Bundle equals the sum of the individual prices, so there is no discount.

  Full Kit gift caution. The protective film 2-pack and the dedicated storage bag are not in the US official Full Kit definition and were confirmed only as gifts with a full set for Taiwanese users. Whether they are included for US purchases is unconfirmed.

The most important fact about the iO configuration is that the charging case is not in the base package. If you need the case, buying it as a bundle from the start is cheaper in every region.

RayNeo iO - The Charging Case Is a Bundle, Not the Default

The base package (8 items per the official support page) is the main unit, an eyeglass case without charging function, a charging clip, a lens cloth, a nose pad kit, a screwdriver and silicone temple tips, a start guide, and safety and warranty information. Whether a USB-C cable and a power adapter come in the box is not in the official contents list and is unconfirmed. Adapters for the GT and Air, lens shades, and similar items are excluded because they are not iO-specific.

The charging case is 2,000mAh, with an official maximum of 5 full charges. It is needed for outings, travel, and long translation sessions, and reviews that found the measurement matched the claim coexist with the point that its absence from the standard package is the biggest complaint. The charging clip is the default charging method and also the means of first activation, and a spare clip (US $25) is closer to insurance against loss or damage. The Japanese clip price is shown with both the current product page's ¥9,999 and the ¥4,900 from an article right after launch, because they conflict. Standalone prices for the nose pad kit, temple tips, cloth, and non-charging case are unconfirmed.

Leion Hey 2 - 5 Base Items, a Thin Separate Accessory Ecosystem

Per the official FAQ, the base package has 5 items: the glasses, a charging case (3,100mAh, 12 charges, up to 96 hours), a Type-C cable, a quick-start guide, and a microfiber pouch. A power adapter is not included, and the glasses charge only when placed in the case. Spare nose pads are not in the official FAQ list and were confirmed only in the Notebookcheck unboxing, so they cannot be asserted as part of the official base contents. Nose pad adjustment itself matters in the initial setup. There are points that the factory-state nose pads were spread too wide and needed manual adjustment, and that there was pressure above the ears after a few hours of wear.

• Price. The US body price is $549. The pre-order $499 (2026-01-06~01-31, ended) included clip-on sunglasses and 1,200 minutes of Pro. Shipping is around $15 for the US and other countries. South Korea was not found in the official direct-shipping country list this time, so it is left as unconfirmed.
• Pro translation minutes (ongoing cost). After the included 1,200 minutes, additional purchases are 120 minutes for $9.90 ($0.0825 per minute), 1,200 minutes for $49.90 ($0.0416), and 6,000 minutes for $199.90 ($0.0333). The warning shared across user reports is that Pro mode must be turned off manually, and if left on, the included minutes can run out.
• Korean price. The Wadiz (와디즈) page lists 800,000 KRW, and the press reports a list price of 1,280,000 KRW and a funding price in the 800,000 KRW range. The Wadiz base configuration was the main unit + lens frame + charging case, and the special configuration was a gift of a sunglasses frame worth 80,000 KRW and 1,200 free minutes of MS Translation PRO. The later planned prices in the maker's reply (regular 990,000 KRW, promotional 890,000 KRW) are plans, not confirmed prices. The current price at AI Babylon (AI 바빌론) is 799,000 KRW, with options of a lens frame at +40,000 KRW and a clip-on sunglasses at +60,000 KRW.
• Scope of confirmed separate purchases. Only prescription lenses, Pro translation minutes, and the Korean lens frame and clip-on sunglasses options are confirmed. Standalone sales of a spare charging case, cable, pouch, or nose pads, a standalone US price for the sunglasses clip-on, and whether physical controllers such as a smart ring or band are sold are unconfirmed. $39.90 is the listed value of a LEION HEARING clip-on, so it is not used as a Hey 2 price.

Even Realities G2 - Usable Right Away With the Base, the Complete Setup Is a Separate Purchase

The base package is the glasses, a charging case (7 charges), a USB-C cable, a microfiber cloth, nose pads, temple sleeves, and a quick guide and safety/warranty documents. Whether a wall adapter is included is unconfirmed. The $149 charging case is a spare or replacement, not a default inclusion. Some secondary articles say the case is not included, which conflicts with the official FAQ, support documents, and box contents. The body is $599 in the US, Brown 2 $649 (released 2026-10-26), £599 in the UK, €699 in Europe, ¥99,800 in Japan (tax included), and ₩1,099,000 in Korea (charging case included).

Rokid Glasses (with display, RV101) - The Charging Case Is Not Included by Default

The official base package has 6 items: the main unit, a storage case (no charging function), a magnetic charging cable, a cleaning cloth, replacement nose pads (several sizes), and a user manual. The Korean guide additionally lists foam pads for supporting the temples. The body price varies widely by region. It is $699 at B&H in the US, $619 globally in the EU, £599 in the UK, A$1,099 officially in Australia, and 999,000 KRW in Korea. The earlier Kickstarter early-bird $499, list price $599, and $698 with case reports are not current prices. For the UK Travel Set at £579, the page text alone shows the same contents list as the standalone product, so any additional components are left as unconfirmed.

The charging case and the Power Capsule are different products. The case charges when you take the glasses off, and the capsule charges while you wear them. Buying both means duplicate spending, so it is reasonable to pick one by usage pattern: whether you spend a lot of time with them off, or need charging while wearing them. Replacement nose pads are not sold separately per the Korean official FAQ, and whether they are sold standalone globally is also unconfirmed.

Cross-Comparison of the Five Products - Charging Case and Sunglasses Clip

The full scenarios for total cost of ownership are gathered in the 'total cost of ownership' section. One thing to remember at the configuration stage. The ranking by body price differs from the ranking by full configuration. The cheapest entry is the iO, but the ranking after adding prescription lenses and the case shifts again for each product.

For users who normally wear glasses, we checked three things for each product: whether prescription lenses can be ordered separately through official channels, whether there is a guide for getting them made at an ordinary optician with only a prescription, and what route actually works in Korea. All five products can be ordered officially. What differs is the method and the Korean route.

INMO GO3 - Official insert orders available, hyperopia and progressive are blocked

• Official order. Insert-type (clip-in) lenses cost $95 (refractive index 1.6), $105 (1.67), and $130 (1.74). They are made by Sipol with an HD blue-light-blocking coating. Because they are made to order, returns are not possible and changes after production starts are not possible. Production adds 7 business days, the prescription must be within 1 year, and PD (pupillary distance) is required.
• Supported range. Only myopia and astigmatism are supported; hyperopia is not. The standard online option offers single vision (distance) only. ADD (near addition) is ignored, because the waveguide display forms its image at a virtual distance of about 2m, so distance vision must be correct. Progressive lenses are available only through partner opticians, but the partner list, prices, and range are Unconfirmed. A non-prescription option for contact lens wearers also exists.

  Range inconsistencies within the official materials must be checked before ordering. On the same official page, the refractive index table allows myopia up to -10.00, -12.00, and -16.00, while the Fitting Guide states upper limits of 750 degrees (-7.50D) for myopia and 450 degrees (-4.50D) for astigmatism. Astigmatism also differs by refractive index, at -2.00, -2.00, and -4.00. Myopia beyond -7.50D or an order above CYL -2.00 should be confirmed with official support before payment, and we do not treat either side as the correct answer. Getting these made at a Korean optician is structurally difficult. The official guide covers only the fitting sequence and how to measure PD, and does not publish the insert lens processing specifications (shape dimensions). According to the manual, fitting lenses yourself presupposes buying the dedicated myopia frame through the official customer center. Whether the insert frame is included in the $95 to $130 price is also unclear from the official wording, so it is Unconfirmed. The only confirmed Korean routes are shipping to Korea from the global official store (South Korea is on the shipping destination list, processing takes 10 to 15 business days, payment in USD) and the ended domestic official launch on Wadiz (와디즈) (Sky Commerce Co. ((주)스카이커머스), 899,000 KRW, 2026-08-18 to 09-07). Whether it is sold on a regular basis, Korean lens service, import duties on direct purchase, and a Korean after-sales service desk are all Unconfirmed. There are three structural bottlenecks. Without the dedicated insert frame, there is nowhere to fit a lens even if one is ground; hyperopia, progressive, and near-vision lenses are not available even through the official online options; and PD and prescription measurement themselves can be done at Korean opticians and eye clinics, so the bottleneck is not measurement but securing the frame and processing to GO3 specifications. The realistic alternatives, in order, are contact lenses and the non-prescription option, INMO's online prescription order, or asking official support about a standalone frame and partner opticians and then commissioning an optician to do the processing.

RayNeo iO - Fused lenses can be ordered only at purchase; adding or changing later is not possible

• Official order. US +$159, UK +£149, EU +€169, Japan +¥26,800. In the US, HSA/FSA payment is available for the prescription purchase. At order time you submit a prescription from within the last 12 months and your PD, and the in-house optics team cross-checks them. Edits and cancellations are possible only within 24 hours; after that, cancellation and refund are not possible. Lead time is generally shipping within 3 weeks according to official guidance.
• Structural constraints. The official FAQ states that prescriptions cannot be added after purchase, that changing the prescription means buying a new product, and that the prescription optics are fused directly with the display optics. There is no iO-specific official prescription range, and myopia, astigmatism, hyperopia, and progressive are all Unconfirmed. The Air series figures of -10.00D and -2.00D are not borrowed for iO. It must also be distinguished from the Lensology clip-in inserts for GT and GT Max, and advertisements for unofficial vendors' inserts are not included in the recommended routes because official compatibility is Unconfirmed.
• Getting these made at a Korean optician is structurally not possible. For iO there are no demo lenses, sample frames, or frame dimension drawings to hand to an optician. The same official FAQ says Air and GT templates can be taken to a local optician but distinguishes iO as not possible. Official distribution in Korea is also not confirmed: Korea is not on the list of 40 launch countries, and no Korean official store is confirmed. A Korean optician can help with the prescription and PD measurement, but for iO lens processing, fitting, and replacement when changing the prescription there is no official route.

Leion Hey 2 - Snap-on inserts, price list and range Unconfirmed

A separate official order is possible. The official page explicitly lists single-vision and progressive lenses and the high-index options 1.67 and 1.74, and the official store listing has lenses without a frame starting From $60. Frames and lenses can be ordered and shipped separately, and production takes about 15 business days (shipping excluded). Cancellation is possible only within 24 hours of ordering, and once processing starts, change-of-mind returns and exchanges are not possible for reasons such as input errors, prescription changes, or comfort. Price and range must be divided into what is confirmed and what is Unconfirmed. The current official lowest listed price is From $60, and the WIRED (2026-05-09) range is $90 to $299. We list the two snapshots separately, and a detailed price list by prescription is Unconfirmed. Myopia, hyperopia, and astigmatism are confirmed per the user manual, and single-vision and progressive are confirmed per the official page. The upper and lower diopter limits, the CYL and Axis limits, prism, and bifocal are Unconfirmed. The earlier summary's required order items of SPH, CYL, Axis, PD, and ADD were confirmed from wording in an FAQ specific to HEARING, so they are not used as Hey 2-specific input fields. The structure is a magnetic one-click snap-on, rimless, with a flat design, and the prescription lens is not a replacement for the fixed lens but a separate insert layer that snaps on. Getting these made at a Korean optician is in a state where no official service is confirmed. A Korean official prescription lens service and partner opticians are not confirmed. The lens frame in the AI Babylon (AI 바빌론) option appears to be a frame for the insert, not the lens itself. A Wadiz maker reply acknowledges that an ordinary optician may be able to make them, but says it helps to choose one with AI glasses experience, that because the gap between the fixed lens and the vision lens is narrow the lens must be a nearly flat one with a curve value of 2 or less, and that the lens specification should be passed to the optician. We found no completed-prescription reports from Wadiz buyers and no AI Babylon reviews, so the actual success rate, cost, and lead time are Unconfirmed.

Even Realities G2 - Integrated unit, 7 Papyrus stores in Korea

A separate official order is possible. Online covers single vision only; progressive (including ADD) and UltraFit are available only through partner opticians. The product page lists a range of -12.00 to +12.00, but the strict range in the support documentation is SPH +8.00 to -12.00, CYL ±4.00, and ADD +0.50 to +4.00 (in store only). It is stated that hyperopia above +8.00 must be confirmed before ordering. Myopia, hyperopia, and astigmatism (CYL+AXIS) are supported, and AXIS is required when CYL is present. Prices are From $159 for US single vision (secondary press range $159, $229, $349, of which only From is confirmed officially), From £149 in the UK, and From €169 in Europe. Refractive indices are 1.60, 1.67, and 1.74, and the selection criterion is spherical equivalent (SPH+½CYL). Having an optician make them directly is not possible by design. The prescription lens is an integrated unit bonded to the waveguide, so the optician is only a window for measurement, ordering, and fitting, not a processing site. Frame specifications (A 48-23, B 50-20) are public but this is not a DIY guide. PD is required for ordering but the permitted range is Unconfirmed, and because it is custom-made, cancellation after 24 hours is not possible. The Korean route is ordering at designated stores. A report dated 2026-10-23 says prescription orders are operating at 7 Papyrus (파피루스) stores in Seoul and Gyeonggi, and some Brzm (브리즘) stores are planned for November, so the confirmed list is Unconfirmed. Because the lens is bonded at the factory, lead time differs between sources: 2 weeks or more in the report and 4 weeks or more in official guidance. The Korean price for the prescription lens is Unconfirmed (guided per store). If an existing non-prescription buyer retrofits it, the lens cost is separate and a replacement fee of ₩200,000 is added. Direct online purchase is blocked because Class 1 medical device registration is in progress and the structure cannot be sold by mail order under the Medical Device Act. The official prism range is Unconfirmed.

Rokid Glasses - Official frame is a prerequisite, 4 specialist opticians in Korea

An official order is possible, but it is a partner-outsourced structure rather than Rokid's own manufacturing. Globally it goes through the lens partner PrimeParticle; in Korea it goes through the official store frame and specialist opticians. Frame price and finished lens price are different. The prescription range is listed by source. The product headline is +15 to -15 and the global FAQ's overall range is +15 to -15, but the window for a specific refractive index lab is +6 to -16, the PrimeParticle online form is SPH -12 to +6 and CYL -6 to +6 with refractive indices 1.60, 1.67, and 1.74, and the comparison table's progressive range is -12 to +12 (via partner). Myopia, astigmatism, and progressive are confirmed; hyperopia (+) is confirmed only indirectly through the +15 figure, and presbyopia alone is Unconfirmed for Glasses. For high prescriptions, a pre-order inquiry is required. Having an optician make them directly is possible according to the official FAQ. You buy the official magnetic frame and take it to a local optician, with the condition that lens curvature be under 0.5D (R1000mm). The required information is the prescription (SPH·CYL·AXIS), PD (no estimating), and ADD for progressive. A downloadable insert dimension drawing or template PDF was not found, so it is Unconfirmed, and the 49mm body lens width is not used as an insert dimension. The Korean distributor is Crebity Co., Ltd. (주식회사 크레비티) (kr.rokid.com). 4 specialist opticians are confirmed on the official retailer page. They are Idoc Optical (아이닥안경) in Myeongdong (02-754-0110), Genie's Optical (지니스안경) in Dongtan (031-375-2549), View House Optical (뷰하우스안경) in Seongsu (0507-1450-0501), and Smart Glass Vision Lab (스마트글래스비전랩) in Gangnam (02-598-1833). The Korean finished-lens price and lead time are not confirmed from the official page text, so they are Unconfirmed and are quoted at the optician consultation. There are four structural constraints. You cannot start without the official frame, there is a curvature limit, dial-type prescription adjustment is a Max-series feature that Glasses does not have, and units bought through overseas direct purchase or unofficial channels may be excluded from domestic official A/S and the genuine-product warranty. The Korean FAQ explicitly states that parallel-import repairs are not accepted. Non-partner ordinary opticians are not blocked outright under the official FAQ, but the Korean guide recommends official or approved opticians, so whether each store can process them is Unconfirmed.

Overview of Korean optician fabrication feasibility - all five products at a glance

This section does not cover translation pair support. Whether Korean works in real-time translation is covered in the translation comparison under "Feature Comparison 6". The question here is just one: do the menus, settings, and guidance text of the dedicated app, and the menus, notifications, and guidance text shown on the glasses display, appear in Korean? Korean subtitles or Korean notification text appearing on the lens does not mean the menu UI is in Korean. Notification text relays the original text from the phone, and the system menu language is a separate matter.

INMO GO3 - A settings path exists, but there is no language list

Whether the dedicated app (INMO Global) displays Korean is Unconfirmed. What is confirmed is only that a language setting item exists. The Wadiz FAQ only gives the path, saying the system language can be changed under App and Preferences in the mobile app, and does not say Korean can be selected. Neither the official product page nor the official FAQ has a list of app UI languages. The menu names written in Korean in the Wadiz FAQ may be a translation of the guidance for Korean readers, so they are not evidence of the actual app screen, and the Korean feature descriptions on the Google Play Korean store page may also be localization of the store description, so they are not evidence of the in-app menu. Whether the glasses display shows Korean is also Unconfirmed. The structure in which the glasses display has menus and prompts and settings can be changed on the glasses or in the app is confirmed in the English user guide, but whether menus and guidance text appear in Korean or only in English is not confirmed. Whether changing the system language changes the app and the glasses display together is also Unconfirmed. The claim by an eBay seller description that the default prompts are in Chinese and switch to English after an update is not official and may reflect units distributed in China, so it is not applied as-is to the global version or the Korean official launch units. However, there is no evidence that the default is Korean.

RayNeo iO - Listed in the store, but completeness is Unconfirmed

The iOS App Store language list for the RayNeo AI app includes Korean, and the 1.0.10 release notes mention a default that follows the system language and per-app language selection. So the app is likely usable in Korean. However, the Android language list has not been separately confirmed, so it is Unconfirmed. Whether the glasses display's dashboard, app list, and widget labels appear in Korean has no official confirmation, so it is Unconfirmed. There is a completeness warning. Even with Japanese settings, there are cases where Chinese text remains on the translation settings screen and "tomorrow" on the dashboard calendar widget appears in Chinese. It cannot be assumed that every menu is fully translated in Korean either, and we found no actual reviews using Korean settings.

Leion Hey 2 - No Korean in the iOS list

The iOS App Store language list for the LEION app (confirmed 2026-10-30, v2.5.0) shows only English and Chinese (Simplified), with no Korean. The description on the Korean store page is also in English. Whether the in-app UI on Android is in Korean is Unconfirmed, and the Google Play Korea page description being in Korean may be store localization, so it is not treated as evidence of the app UI. The "나" tab and "한어" labels in the Wadiz Q&A are not evidence of a Korean UI. The context of the maker's reply is the subtitle and translation language settings, and the awkward label "한어" (Chinese) and a buyer's confusion that English appeared after switching to Korean are confirmed circumstances. The language of the glasses display's menus, notifications, and guidance text is Unconfirmed. The glasses display menu structure itself is not confirmed in official documents, and the display is closer to a device for showing captions and a teleprompter than a menu UI. There is also no basis to assert that only English appears, so it is not recorded as English-only.

Even Realities G2 - The official documentation and the actual screen say different things

The conclusion is conflicting and undetermined. Korean is listed in the app system language list in the official support documentation, but the Apple App Store metadata shows only English, the Japanese user settings screen snapshot (8 languages) does not include Korean, and at the time of the Korean launch (2026-08-03 report), the Korean app was scheduled for a mid-August update. Therefore, whether the app's menus, settings, and guidance text are fully Korean is Unconfirmed, and you must check the in-app system language yourself before buying. Switching the glasses display menu to Korean is also Unconfirmed. The only thing that is confirmed is the ability to render Korean content. Korean is included in the Text display list, so original Korean text such as phone notification bodies can be shown, but this is different from menu translation. Actual inconvenience cases appear in reviews. A Clien (클리앙) first-day review wrote that Korean cannot be selected in the default UI and menus, and a Rentalu (렌탈루) roundup wrote that the app screens are mostly in English, creating an entry barrier at initial setup. There are also points that the default news widget cannot be set to Korean and the default stock widget has no Korean stocks, and there is a case of working around this with the Even Market plugin. A direct review of returning the product because of English menus has not been confirmed, so it is not recorded.

Rokid Glasses - App confirmed, glasses display and linkage Unconfirmed

Actual inconvenience cases also remain. 1 App Store review complains that a Korea-based owner could not use the app because the app language switched to Chinese after an update (version and whether it was resolved are Unconfirmed). A long-term review of a domestic direct purchase on 2026-08-13 pointed out that the default UI is Chinese-based (YodaOS) and that some features center on English and Chinese, so community apps or separate settings may be needed. However, it was in the context of direct purchase before the Korean official launch, so it is not applied as-is to the current official product. A 2-month Korean review on 2026-07-07 named Korean localization the No. 1 purchase decision factor and states that satisfaction rose after a firmware update, but the Korean localization rate by menu is not given as a figure.

Common to all five products - Structures that increase the inconvenience, and how to check before buying

• Settings are concentrated in the app. For products like GO3, where most settings such as pairing, firmware updates, the Ring4 gesture map, and notification management go through the app, being unable to read the app menu makes it easy to get stuck at initial setup and troubleshooting. Complaints about the completeness of the GO3 app itself (Google Play rating of 1.4, repeated permission requests, sign-up captcha errors, unanswered customer support cases) are already significant, and whether a Korean-language support channel exists is Unconfirmed. However, we found no case in which a Korean user directly said they could not use it because the menus were in English, so rather than invent a case that does not exist, we record it as no direct case.
• The confirmed inconveniences with Hey 2 are labeling and confusion. We found no documented buyer review saying the app was unusable because it appears only in English. What is confirmed is only the "한어" labeling error, confusion over the subtitle language setting structure, inquiries about how to invoke the AI, and the learning burden around the early copad, sunglasses magnets, and case LED.

  Pre-purchase checks. First, install the app and check for a Korean entry in the system language list yourself, and see whether the glasses display menu changes along with it. Second, ask official support whether Korean is available in the app UI and the glasses menu, and ask for the full language list. For GO3, it is also advisable to ask whether the firmware is identical between the official launch units and direct-purchase units. Third, recheck the language field on the store detail page at the time of purchase. For Rokid, you can ask the retailer as follows: if the app is set to Korean, do the glasses display menu and notifications also change to Korean, and does the list of 13 UI languages include Korean?

The body of this page is based on Source B (reviews and feature comparison, which also lists its own sources and discrepancies). Compared with Source A (an overview of the same products), 73 items carry different values; below are only the ones that most affect a purchase decision. Both are external research documents, and the maker of this page has not verified these values. We do not claim either side is right, and you should confirm directly with the manufacturer or seller before ordering or paying.

Source A cites more than 20 Reddit threads, and this page reproduces its content as written in the Reddit and community reviews section. However, the maker of this page could not open the original Reddit threads, and Source B states that it found no dedicated Reddit review pool for any of the five products. Reddit citations are therefore labeled as quotations from Source A (originals not confirmed).

These are items Source B does not have or leaves as "unconfirmed". The nature of each source is noted, so judge how far to trust it.

Once total cost of ownership is settled, close the items below one by one just before ordering. For items that remain Unconfirmed, such as prescriptions and Korean UI, the premise is to settle them at this stage through hands-on testing and official inquiries.

• Fit test: Opinions of iO swing to extremes depending on face shape, Hey 2 presses on the temples, and GO3 and G2 also have reports of discomfort over long wear. If possible, wear them for a long time within the return conditions.
• Check return conditions: G2 prescription lenses cannot be cancelled after 24 hours, and non-prescription units have a 14-day return. iO has a 30-day return. Many GO3 accessories are Final Sale with no returns. They differ by product, so check before ordering.
• Configuration and charging method: First check whether the charging case is included by default (GO3, Hey 2, G2) or bought separately (iO, Rokid). For Rokid, choose only one of the case and the capsule.
• Check the prescription route: Prepare your prescription and PD, and check against the "Prescription lenses" sections whether your prescription is within the official range, whether the structure allows optician fabrication, and the cancellation deadline (such as 24 hours).
• Check Korean UI: Check through hands-on testing or an official inquiry, against the "Korean-language UI" sections, whether Korean is in the app's system language list and whether the glasses display menu changes along with it.
• Subscriptions and billing: Recheck with the seller the Hey 2 Pro minute balance management, whether iO VIP is needed, and the Unconfirmed subscription status of G2 and Rokid.
• Test your main languages: Translation accuracy varies widely by language pair, noise, and accent. Test overlapping speech situations in your main languages, including Korean.
• Offline scope: Hey 2 has inconsistencies between sources, and G2 and iO have virtually no offline mode. If you assume airplane or roaming environments, start by considering GO3.
• Recording disclosure and terms: Even without a camera, three products can collect voice continuously. Check how to notify the other party and the manufacturer's data terms.
• Displaying sensitive information: For iO and GO3 there are measurements and tests showing that a person in front can read the screen. Judge whether it is an environment where you would display confidential work material.
• Bugs and connection stability: For Rokid, repeated connection drops and AI non-response are commonly pointed out in every review. Check the success rate of your main features yourself within the return period.
• Check app ratings: There are cases like the GO3 app's 1.4 rating where hardware and app ratings are opposite. Look at the latest app reviews again just before buying.