Category: Wearables

  • Lightweight Rokid AR Glasses with Micro-LED Displays for $499

    Lightweight Rokid AR Glasses with Micro-LED Displays for $499

    Key Takeaways

    1. Rokid Glasses are the lightest camera-enabled smart glasses, weighing just 48 grams, and are designed for both consumers and professionals.
    2. They feature advanced translation capabilities, offering real-time translation in 89 languages, with offline support for 5 languages.
    3. The glasses include teleprompter functionality, AR navigation, and the ability to capture voice notes and set reminders.
    4. Equipped with a 12MP camera, dual speakers, and AI noise reduction, they offer high-quality audio and video recording.
    5. The glasses have a 210mAh battery with quick charging capabilities and are available for backing on Kickstarter at $499, with a retail price of $599 upon release.

    Nearly a year after launching in China, Rokid is now bringing its AR smart glasses, called the Rokid Glasses, to international markets. These are being praised as the lightest camera-enabled smart glasses in the world, and Rokid claims they are suitable for both consumers and professionals alike.

    Advanced Translation Capabilities

    The Rokid Glasses come packed with features, including real-time translation for up to 89 languages. They can show translations of written text, and with built-in speakers, they can also vocalize what they hear. Furthermore, integrated microphones can capture conversations and provide translations for users. The glasses utilize ChatGPT along with Microsoft’s translation services. Rokid also mentions that there is offline support for 5 languages using their unique LLM. Additionally, the device can transcribe meetings and summarize discussions with the help of AI.

    Teleprompter and Navigation Features

    Users can utilize the Rokid Glasses as a teleprompter, eliminating the need for speech notes. Another handy feature includes taking voice notes and setting reminders. The glasses also support AR navigation, presenting directions along with speed, duration, and estimated arrival time.

    Weighing just 48 grams, the Rokid smart glasses are rated IPX4 and are made with a magnesium-aluminium alloy frame and TR90 temples that fit prescription lenses. They feature dual monochrome green Micro LED displays with a diffractive optical waveguide. Each display has a resolution of 480 x 398, offers 1500 nits of brightness, and has a 23° field of view. Users can adjust text size and brightness settings for the display.

    Impressive Camera and Audio Features

    Equipped with a 12MP f/2.25 Sony IMX681 camera, the glasses provide a resolution of 3024 x 4032 and a field of view of 109°. There’s a capture button located on the right temple, and pressing it for a long time allows switching between video and audio recording modes. Rokid has also added a privacy indicator light to notify others when recording is taking place. The glasses include two AAC speakers and four microphones designed with AI noise reduction technology.

    Powered by Qualcomm’s AR1 processor for general computing and demanding tasks, along with a secondary NXP RT600 chip for voice recognition and low-energy functions, the Rokid Glasses have 2GB of RAM and 32GB of storage. They support Bluetooth 5.3 and Wi-Fi 6. A companion app on mobile phones allows users to adjust settings, access recorded content, and update the glasses.

    The smart glasses come with a 210mAh battery, featuring a proprietary charger that supports quick charging (80% in 20 minutes). Additionally, there is an optional case with a 3,000mAh battery that can provide up to 10 full recharges. Rokid claims the glasses can deliver up to 10 hours of mixed usage, although actual usage times will vary depending on whether the displays are always on or just recording.

    Currently, the Rokid Glasses are available for backing on Kickstarter at a price of $499, but they will retail for $599 upon official release. While this is more affordable than the Ray-Ban Meta, which starts at $299, it’s important to note that Meta’s glasses do not feature a display. As of now, Rokid has raised nearly $686,000, significantly exceeding their $20,000 goal with 43 days remaining in the campaign.

     

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  • Garmin Update: Enhanced Accuracy with 5Hz Data Recording

    Garmin Update: Enhanced Accuracy with 5Hz Data Recording

    Key Takeaways

    1. Garmin announced the August 2025 Feature Update, introducing new changes for certain devices, mainly focusing on the Edge 1050.
    2. The Edge 1050 will receive enhancements like Forksight Mode, 5Hz GPS recording, Timing Gates, and new Ride profiles.
    3. Older cycling models, including Edge 540, Edge 840, and Edge 1040, will not receive the new features included in the update.
    4. All supported cycling computers received Software Series Version 28.20, but the Edge 1050 has eight additional changes compared to others.
    5. The Edge 540, Edge 840, and Edge 1040 gained three new features and various bug fixes with the Series Version 28.20 update.

    Earlier this month, Garmin surprised everyone by revealing the August 2025 Feature Update. This update comes with a number of changes for newer devices, including the Forerunner 570, Forerunner 970, Venu X1, and the Fenix 8 series. The only cycling computer that got a mention in this update was the Edge 1050, which is currently priced at $689.99 on Amazon.

    New Features and Improvements

    Garmin stated that the Edge 1050 would get enhancements for Forksight Mode, along with 5Hz GPS recording, Timing Gates, and new Ride profiles. However, it was uncertain if these features would also be available for older cycling models, such as the Edge 1040. As it turns out, these updates have not been applied to older models, with the Edge 540, Edge 840, and Edge 1040 missing out on those new features.

    Software Series Version 28.20

    In a somewhat perplexing move, Garmin has rolled out Series Version 28.20 to all its supported cycling computers, which includes the Edge 1050. Despite all four cycling computers receiving the same software version, the Edge 1050 has eight additional changes compared to the others. Still, the older models like the Edge 540, Edge 840, and Edge 1040 have picked up three new features with this Series Version 28.20, along with various bug fixes. The complete changelog for Series Version 28.20 is outlined below:

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    Garmin Update: Enhanced Accuracy with 5Hz Data Recording

     

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  • Amazfit Launches Balance 2 XT Smartwatch in Europe

    Amazfit Launches Balance 2 XT Smartwatch in Europe

    Key Takeaways

    1. The Amazfit Balance 2 XT smartwatch is set to be available in Europe, specifically in Spain and Italy, with potential orders from other European countries.
    2. The European price is estimated at €189.91, while it retails for $199.99 in the US, though the exact release date and shipping fees are not yet confirmed.
    3. The Balance 2 XT features a 1.5-inch AMOLED screen, over 170 sports modes, health monitoring capabilities, GPS navigation, and a battery life of about 21 days.
    4. Key differences from the standard Balance 2 include the use of mineral glass instead of sapphire glass, the absence of a Golf app, and a lower water resistance rating of 5 ATM.
    5. The official release date for the Balance 2 XT in the US has not been announced.

    Amazfit has announced that the Balance 2 XT smartwatch is on its way to Europe. Speculation about this device started earlier this year, and it is already available for sale in the US through Best Buy.

    Availability in Europe

    Amazfit has shared with Notebookcheck that the Balance 2 XT smartwatch will be available in their online shops in Spain and Italy. Customers residing in other European nations can also order the product, though it’s unclear what the shipping fees will be. The exact release date and price for Europe have not been disclosed yet. Nevertheless, one retailer has it priced at €189.91, while it is listed for $199.99 in the US.

    Specifications and Features

    The Balance 2 XT offers a more affordable option compared to the original Balance 2 smartwatch, launched earlier this year. It features a 1.5-inch AMOLED screen that is safeguarded by mineral glass. Users can track their workouts with over 170 sports modes, as well as monitor health indicators like heart rate, blood oxygen saturation, sleep quality, and stress levels. Additionally, it is equipped with GPS navigation, downloadable maps, and boasts a battery life of approximately 21 days.

    Differences from the Standard Version

    There are notable differences between the standard version and the XT model of the Balance 2 smartwatch (currently priced at $299.99 on Amazon). For example, the XT swaps sapphire glass for mineral glass. It also lacks the Golf app and has a lower water resistance rating of 5 ATM, meaning it isn’t suited for diving. It remains uncertain when the Amazfit Balance 2 XT smartwatch will officially be available in the United States.

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    Amazfit Launches Balance 2 XT Smartwatch in EuropeAmazfit Launches Balance 2 XT Smartwatch in Europe

     

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  • Apple Watch Series 10 Not Climate Neutral: Court Bans Greenwashing

    Apple Watch Series 10 Not Climate Neutral: Court Bans Greenwashing

    Key Takeaways

    1. The Apple Watch Series 10 is marketed as climate-neutral, relying on renewable energy for production and using plastic-free, recycled packaging.
    2. Apple ships at least half of the devices using ground or sea methods to reduce transportation emissions.
    3. Each Apple Watch Series 10 reportedly results in 8.3 kilograms of CO₂ emissions, which Apple offsets by purchasing carbon offset certificates.
    4. Concerns have been raised about the environmental impact of the eucalyptus plantations funded by the carbon offset certificates, including soil health and water usage issues.
    5. A German court ruling questions Apple’s greenwashing claims, potentially preventing the company from promoting the watch as climate-neutral in Germany starting in September.

    The Apple Watch Series 10 (starting from $399 on Amazon) is marketed as being climate-neutral, as stated on Apple’s product website. An environmental report explains that the smartwatch is supposedly free from carbon dioxide emissions, at least in theory. To begin with, the production of the Apple Watch Series 10 relies entirely on renewable energy sources. The packaging is fully devoid of plastic and is made from recycled or sustainably sourced wood fibers.

    Shipping Practices

    In addition, Apple ships at least half of the Apple Watch Series 10 models using ground or sea methods to lower transportation emissions. Apple’s internal data indicates that these practices lead to a total emission of 8.3 kilograms of CO₂ for each Apple Watch Series 10 produced. To achieve the claimed zero emissions, Apple buys carbon offset certificates. Yet, a court in Frankfurt, Germany, has raised concerns about these certificates, as the funds are directed towards eucalyptus plantations in Paraguay, which are meant to absorb the carbon dioxide generated during the smartwatch’s production.

    Environmental Concerns

    Nonetheless, such monoculture practices are said to harm soil health and consume large amounts of water. Furthermore, 75% of these trees are planted on leased land, which is only secured until 2029, leaving the future of these trees uncertain. A German environmental group filed a lawsuit to challenge Apple’s greenwashing claims. In a statement to Reuters, Apple mentioned that the court has “largely confirmed Apple’s consistent approach to carbon neutrality.” It remains uncertain whether Apple will contest the ruling. As per the court’s decision, Apple may no longer promote the smartwatch as climate-neutral starting in September, at least within Germany.

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    Apple Watch Series 10 Not Climate Neutral: Court Bans GreenwashingApple Watch Series 10 Not Climate Neutral: Court Bans Greenwashing

     

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  • Rollme Hero T5: Affordable AMOLED Smartwatch with ECG & Wellness Tracking

    Rollme Hero T5: Affordable AMOLED Smartwatch with ECG & Wellness Tracking

    Key Takeaways

    1. Affordable Health Monitoring: The Rollme Hero T5 smartwatch combines standard features with advanced health monitoring functions at a budget-friendly price of $49.99.

    2. Advanced ECG Technology: It includes a sophisticated ECG sensor that claims up to 95% accuracy in detecting irregular heart rhythms.

    3. Comprehensive Health Tracking: The watch offers an “Intelligent Physical Examination” mode, monitoring heart rate, blood oxygen levels, blood pressure, stress, body temperature, sleep, body composition, and heart rate variability.

    4. Fitness Features and Long Battery Life: The Hero T5 supports multiple sports modes for real-time feedback and has a 450mAh battery that lasts up to 30 days on standby.

    5. User-Friendly Design: Features a 1.43-inch AMOLED display, rotating crown for navigation, Bluetooth calling, IP68 water and dust resistance, and customizable watch faces.

    Rollme has launched its latest smartwatch, the Hero T5, aiming to make heart and wellness monitoring more accessible to everyone. Similar to many health-oriented wearables, the Hero T5 combines standard smartwatch features with medical-style functions, all in a budget-friendly package.

    Design and Features

    The Hero T5 boasts a 1.43-inch AMOLED display set within a sturdy full-metal casing. Navigation is handled by a rotating crown, and it also includes a special ECG button. Additionally, the watch has a built-in microphone and speaker for making Bluetooth calls. With an IP68 rating, it offers good protection against water and dust.

    Health Monitoring

    Rollme asserts that its sophisticated ECG sensor can achieve up to 95% accuracy in detecting irregular heart rhythms. In addition to ECG functionality, the Hero T5 features what the company describes as an “Intelligent Physical Examination” mode, utilizing various sensors to monitor heart rate, blood oxygen levels, blood pressure, stress, and body temperature. It also performs sleep analysis, assesses body composition, and tracks heart rate variability.

    Fitness and Battery Life

    To support fitness enthusiasts, the watch includes several sports modes that provide real-time feedback for activities like running and cycling. The device is powered by a 450mAh battery, which Rollme claims can last up to 30 days on standby with just one charge.

    On the software side of things, the watch comes equipped with an AI voice assistant, support for notifications, music controls, and customizable watch faces. The Hero T5 is available in both black and silver, paired with silicone straps. As a special promotion, early customers will also receive additional leather and stainless steel straps.

    The Rollme Hero T5 is currently available for purchase through the company’s official store at an introductory price of just $49.99.

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    Rollme Hero T5: Affordable AMOLED Smartwatch with ECG & Wellness TrackingRollme Hero T5: Affordable AMOLED Smartwatch with ECG & Wellness Tracking

     

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  • TCL RayNeo Air 3s Pro: Advanced OLED AR Glasses Launch Worldwide

    TCL RayNeo Air 3s Pro: Advanced OLED AR Glasses Launch Worldwide

    Key Takeaways

    1. High Brightness: The RayNeo Air 3s Pro glasses feature a peak brightness of 1,200 nits, making them the most luminous in the RayNeo Air series.

    2. Superior Display Quality: They boast a contrast ratio of 200,000:1 and cover 145% of the sRGB and 98% of the DCI-P3 color gamuts, providing high color accuracy.

    3. Device Compatibility: The glasses are compatible with various devices, including PCs, gaming consoles, smartphones, and handhelds, using an HDMI adapter.

    4. Lightweight Design: Weighing only 76 grams, the glasses are lighter than a smartphone and include a quad-speaker audio system with privacy features.

    5. Affordable Pricing: The RayNeo Air 3s Pro is priced at $299, with a current discount of $50 available on TCL and Amazon.

    TCL claims that the new 3s Pro glasses are the most luminous in the RayNeo Air series, boasting a heightened peak brightness level of 1,200 nits. This is made possible by their newly developed “5.5th-gen” dual HueView 2.0 displays, which are said to be both tandem OLED and micro-OLED.

    High Contrast and Color Accuracy

    The lenses provide an “industry-leading” contrast ratio of 200,000:1, along with covering 145% of the sRGB color gamut and 98% of the DCI-P3 color gamut. These glasses are marketed as being comfortable for extended viewing, whether you’re watching movies, gaming, or using AR, featuring a 3,840Hz PWM dimming mode to protect your eyes.

    Compatibility and Design

    The RayNeo Air 3s Pro glasses are said to work seamlessly with a variety of devices, including PCs, PlayStations, Xboxes (when using a powered HDMI adapter), handheld consoles, iPhones, Android phones, and even the Nintendo Switch (including the Switch 2) through a JoyDock.

    TCL insists that the design of the Air 3s Pro makes them suitable for all users, although they do have a noticeable protrusion from the face, particularly when the optional blackout shade is attached.

    Lightweight and Affordable

    Yet, the glasses are also described as being “lighter than a smartphone,” weighing only about 76 grams, even with a specialized quad-speaker audio system that uses algorithms to mimic spatial audio. There’s a Whisper Mode for users who prefer privacy.

    The “Portable Personal Cinema” is currently available for purchase from TCL or Amazon, starting at a price of $299. However, both sites are offering a $50 discount coupon as of this writing.

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    TCL RayNeo Air 3s Pro: Advanced OLED AR Glasses Launch Worldwide

     

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  • Amazfit Smartwatches May Introduce New Workout Mode Soon

    Amazfit Smartwatches May Introduce New Workout Mode Soon

    Key Takeaways

    1. Amazfit smartwatches and fitness trackers may soon feature a Nordic walking workout mode.
    2. Nordic walking engages the entire body and is gaining popularity in the US and UK.
    3. The workout option was discovered in the Zepp app’s code version 9.11.1.
    4. Current Amazfit users cannot access the Nordic walking mode yet.
    5. The rollout date for the new workout type is still uncertain, following a recent Rucking workout discovery.

    Another exciting feature seems to be coming soon for Amazfit smartwatches and fitness trackers. The brand already provides over 170 different workout modes for devices such as the Balance 2 (curr. $299.99 at Amazon).

    Upcoming Nordic Walking Feature

    According to a report from Gadgets & Wearables, a new workout type focused on Nordic walking might be introduced soon. This style of walking engages the entire body, as participants use poles to enhance their upper body workout while walking. Originating from Finland, this exercise has gained traction in Sweden, Norway, and Germany, and is now starting to become popular in the US and the UK.

    Code Discovery

    The Nordic walking option was found in the code of the Zepp app version 9.11.1, which was released around mid-August. As of now, Amazfit wearable users can’t choose this workout mode yet. The update’s change log, which can be downloaded from the Google Play Store, mentioned bug fixes, but didn’t provide any additional information.

    Future Rollout Uncertain

    This upcoming workout type comes right after a Rucking workout was also discovered in the app’s code. It remains to be seen when users of Amazfit devices will be able to access the Nordic walking workout mode. Gadgets & Wearables continues to monitor the situation for any new developments.

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  • Casio G-Shock Rui Hachimura GM-5600RH-1 Watch Release Date Update

    Casio G-Shock Rui Hachimura GM-5600RH-1 Watch Release Date Update

    Key Takeaways

    1. The launch date for the GM-5600RH-1 watch has been moved from August 2025 to September 2025.
    2. This watch is the fifth model in the Rui Hachimura x G-Shock collection and features a brushed black bezel and red accents.
    3. It offers G-Shock functionalities like stopwatch, timer, alarm, and water resistance of 200 meters.
    4. The watch will come in a special box with Rui Hachimura’s branding and is priced at ¥39,600 (approximately €279 or $268).
    5. Global availability remains uncertain, with previous editions primarily limited to Japan.

    Casio’s eagerly awaited collaboration with NBA star Rui Hachimura, the GM-5600RH-1, has experienced a slight change in its launch date. Initially slated for August 2025, the watch is now expected to arrive in September, following updates from the Japanese blog Great G-Shock World.

    Release Date Change

    The GM-5600RH-1 marks the fifth installment in the Rui Hachimura x G-Shock collection. Earlier leaks from July suggested an August launch, and some promotional materials had already started to appear online. However, the lack of an official release during Casio’s usual Friday launch schedule fueled speculation about a delay, which now seems to be validated.

    Design Details

    Similar to the GM-5600U metal-case version, the GM-5600RH-1 will feature the iconic square G-Shock design, adorned with Rui Hachimura’s personal branding. The watch will showcase a brushed black bezel, a negative LCD screen with red accents, and a strap keeper that features Rui’s “H” logo engraved on it. Additionally, the caseback is expected to have an engraving as well. This will be the fifth G-Shock release associated with Rui Hachimura, following previous resin models that showcased brighter colors and coordinated details.

    Features and Pricing

    Like other GM-5600U models, this new watch is likely to come equipped with the typical array of G-Shock functionalities: stopwatch, timer, alarm, backlight, and a water resistance of 200 meters. Users will also be able to swap straps with models such as the GA-2100 and GM-5600U.

    The GM-5600RH-1 will be delivered in a box branded with Rui Hachimura’s logo and a round metal case featuring his red emblem. According to reports, Casio has set the price of the watch at ¥39,600 in Japan, which is approximately €279 or $268. However, details about its global release remain unverified. Previous editions linked to Hachimura have often been limited to Japan, with only select availability internationally. If Casio opts for a similar strategy this time, the GM-5600RH-1 could be challenging to find outside of Japan.

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    Casio G-Shock Rui Hachimura GM-5600RH-1 Watch Release Date UpdateCasio G-Shock Rui Hachimura GM-5600RH-1 Watch Release Date Update

     

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  • Casio Launches New MTP-M110 Moon Phase Watches in Europe

    Casio Launches New MTP-M110 Moon Phase Watches in Europe

    Key Takeaways

    1. Three new models from the Casio MTP-M110 series are launching in Europe: MTP-M110D-1AV, MTP-M110L-1AV, and MTP-M110RL-5AV.
    2. The MTP-M110D-1AV and MTP-M110L-1AV are priced at €129, while the MTP-M110RL-5AV is priced at €139.
    3. All models feature analog displays with a moon phase dial and are water-resistant up to 5 bar.
    4. The watches are powered by an SR621SW battery, expected to last around three years.
    5. Availability in Europe includes countries like the Netherlands, Spain, and Germany, with no confirmed release date for other markets, including the US.

    Three new watches from the Casio MTP-M110 series are set to launch in Europe. Earlier this year, the MTP-M110D-1AV, MTP-M110L-1AV, and MTP-M110RL-5AV appeared on the brand’s global website.

    Availability in Europe

    Currently, these models are available at Casio’s online shops in various countries, including the Netherlands, Spain, and Germany. The MTP-M110D-1AV features a stainless steel case with a metal strap, complemented by silver hands and numbers on a sleek black dial. On the other hand, the MTP-M110L-1AV showcases a black face adorned with rose gold accents, a stainless steel bezel, and a stylish black leather band. Both of these timepieces are priced at €129.

    Pricing and Features

    The MTP-M110RL-5AV is a bit pricier, retailing at €139. This model boasts a rose gold ion-plated stainless steel bezel and casing, a cream-colored dial, and a brown leather strap. While all models are marked as ‘Coming soon’, the exact release date is still a mystery. Interested customers can join the brand’s mailing list to receive email updates when they officially launch.

    The Casio MTP-M110 series watches are analog, featuring three hands indicating hours, minutes, and seconds. Additionally, there’s a moon phase dial that uses a 29-step rotating wheel to show the current lunar phase. These watches are water-resistant up to 5 bar and are expected to last around three years with an SR621SW battery. Each watch measures 48.4 x 42.5 x 9.6 mm (approximately 1.9 x 1.7 x 0.4 inches). It remains uncertain whether or when these models will become available in other markets, such as the US.

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    Casio Launches New MTP-M110 Moon Phase Watches in Europe

     

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  • Apple Watch Ultra 2 Outperforms Garmin, Whoop, and Samsung Sensors

    Apple Watch Ultra 2 Outperforms Garmin, Whoop, and Samsung Sensors

    Key Takeaways

    1. The heart rate sensor of the Apple Watch Ultra 2 is highly accurate, showing minimal deviation from the Polar H10 chest strap during indoor and outdoor activities, outperforming many competitors.

    2. During outdoor activities, the Apple Watch Ultra 2 maintained strong heart rate tracking, while competitors like Garmin and Whoop had significantly higher deviations.

    3. The sleep tracking feature of the Apple Watch Ultra 2 demonstrated approximately 73% accuracy for REM and deep sleep, and 86.5% for light sleep, slightly outperforming the Oura Gen 4 Smart Ring.

    4. The Apple Watch Ultra 2’s sleep tracking accuracy is better than that of the Samsung Galaxy Watch Ultra 2, Whoop 4.0, and Garmin Fenix 7, though results are based on limited testing.

    5. Despite its strong performance, the Apple Watch Ultra 2 may struggle with heart rate detection during weightlifting due to wrist tension, suggesting a dedicated chest strap is still recommended for such activities.

    Rob ter Horst, a researcher focused on bioinformatics and the creator of the YouTube channel The Quantified Scientist, has evaluated the sensors of the Apple Watch Ultra 2 (starting at $799 on Amazon) while utilizing the latest beta version of watchOS 26. He conducted comparisons with a variety of other smartwatches to see if users can depend on the information provided by Apple’s top smartwatch.

    Heart Rate Sensor Evaluation

    To start, the heart rate sensor was examined. During an indoor running session, it gathered data that was almost identical to that from the reference device, which was a Polar H10 chest strap in this instance. Although there were slight differences, they were minor and thus rather unimportant in practice. This positions the Apple Watch Ultra 2 alongside the leading smartwatches, like the Huawei Watch 5. For context, the Whoop MG showed a deviation of around 6% from the reference device, and the Garmin Forerunner 570 deviated by roughly 7%. Meanwhile, the Garmin Fenix 7 was off by 9%, while the Samsung Galaxy Watch 7 only deviated by 3%.

    Performance During Outdoor Activities

    When it came to outdoor runs and cycling, the heart rate sensor of the Apple Watch Ultra 2 also provided data that was nearly on par with the reference device, widening the gap between it and its competitors. The cycling data from the Garmin Forerunner 570 deviated by 12%, and the Whoop MG’s deviation rose to over 15%. Nevertheless, it’s important to highlight that a dedicated heart rate chest strap remains a valuable investment for weightlifters, as the Apple Watch Ultra 2, like many other smartwatches, struggles to detect heart rate when there is excessive tension on the wrist.

    Sleep Tracking Analysis

    Besides the heart rate sensor, Rob ter Horst also evaluated the sleep tracking feature of the Apple Watch Ultra 2. The reference device used was a Hypnodyne ZMax, which captures brain waves through EEG and claims to record sleep phases with 72% accuracy, based on studies. In comparison, polysomnography (PSG) used in sleep labs has an accuracy of about 83%. Against the ZMax, the Apple Watch Ultra 2 demonstrated an accuracy of approximately 73% for REM and deep sleep, and an impressive 86.5% for light sleep.

    This result is outstanding when compared to its rivals and even slightly outperforms the Oura Gen 4 Smart Ring. The Samsung Galaxy Watch Ultra 2, Whoop 4.0, and Garmin Fenix 7 showed notably lower accuracy in this area. However, it’s worth mentioning that this test and comparison only involved one unit of each wearable and a single participant. Due to the limited sample size, the findings are only moderately indicative of the overall performance and accuracy of these devices.

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    Apple Watch Ultra 2 Outperforms Garmin, Whoop, and Samsung Sensors

     

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