The CMF Watch 3 Pro is already on sale, pairing built-in dual-band GPS and expanded fitness tools with a 1.43-inch AMOLED display, Bluetooth calling and ChatGPT access through Nothing’s phone ecosystem. The key caveat: Nothing says ChatGPT currently works only with phones running Nothing OS, even though the Nothing X companion app itself supports a wider range of Android phones and iPhones.
In the U.S., Nothing listed a $99 reference price and displayed sale prices of $79 on its product page and $65 on its CMF collection page on August 18, 2026; those page-specific prices may change. The watch is most appealing to Nothing-phone owners and casual fitness users who want GPS and smartwatch features without a premium-watch price. Check Nothing’s U.S. product page for current availability and price.
What the CMF Watch 3 Pro adds
Nothing positions the CMF Watch 3 Pro as a budget smartwatch with a broader fitness feature set than a basic step counter. Its central hardware upgrade is built-in dual-band GPS using L1 and L5 signals. Nothing says the design improves signal clarity and tracking accuracy compared with earlier generations, but that claim is not independent evidence that its GPS or heart-rate readings match specialist sports watches.
The watch has a 1.43-inch AMOLED screen with a 60 fps refresh rate. Nothing also lists more than 120 watch faces, Bluetooth calling, voice recording, and a set of health and activity tools managed through the Nothing X app. Its headline AI feature is ChatGPT access from the wrist, but that depends on a compatible phone and app rather than making the watch a standalone AI device.
#1 Best Overall
- 24/7 Health Tracking: Watch 3 Pro can monitor heart rate, blood oxygen (SpO₂), stress levels in real time with an advanced 4-channel sensor for improved accuracy during activity and rest. This health tracker smartwatch can offer advanced sleep tracking helps analyze naps, recovery, and sleep quality for better daily wellness insights.
- 130+ Sports Modes: The sports smartwatch supports 130+ exercise modes with GOMORE-powered performance analysis, 7-type motion recognition, and precision activity tracking to help monitor workouts, training load, recovery, and daily movement more accurately. Active Score (MET-based fitness tracking), precision step counting, and smart health guidance help support a healthier lifestyle.
- Smart Everyday Convenience: Stay connected with the bluetooth smartwatch featuring dual high-performance MEMS microphones, a built-in speaker, and AI-based noise reduction trained on over 100,000 voice samples for clearer calls. Make and receive calls directly from your wrist, sync up to 30 contacts for quick access, control music playback, and send quick replies while working, commuting, cooking, or exercising without constantly checking your phone.
- 13-Day Battery Life: Enjoy up to 13 days of battery life on the smartwatch with just 2.5 hours charging time for daily use. Designed for work, workouts, travel, and busy schedules, CMF Watch 3 Pro delivers reliable power for music playback, quick replies, calls, and everyday activity tracking without frequent charging interruptions.
- AMOLED Display & Smart Lifestyle Sync: Featuring a vibrant AMOLED display, this smartwatch for Android and iPhone delivers clear visibility for health data, messages, and workouts indoors or outdoors. Seamlessly sync with Apple Health, Google Fit, and Strava to manage fitness tracking, wellness insights, and daily activity data in one connected ecosystem.
Core specifications
| Feature | Detail |
|---|---|
| Display | 1.43-inch AMOLED; 60 fps |
| GPS | Built-in dual-band GPS (L1 + L5) |
| Battery claims | Up to 13 days typical use; up to 10 days heavy use; up to 4.5 days with Always-On Display. These are Nothing estimates under specified use conditions, not guarantees. |
| Water and dust rating | IP68 under controlled laboratory testing; Nothing advises against swimming and several other water-intensive activities. |
| Companion app | Nothing X |
| Nothing X compatibility | iOS 13 or later; Android 6.0 or later |
| Google Health Connect | Android 9 or later required |
| ChatGPT | Currently supported only on phones running Nothing OS; phone app, signed-in account, microphone permission and connectivity are also required. |
| Calling and recording | Bluetooth calling supported; voice recordings can be up to 30 minutes each. |
| Watch faces | More than 120 listed by Nothing. |
Specifications and feature descriptions are from Nothing’s product page and its product-feature support information.
What “smarter fitness tracking” means in practice
The fitness pitch combines sensors, automatic activity detection and app-based planning. Nothing’s support documentation lists heart-rate measurement, including automatic and 24-hour tracking, resting and exercise readings, and heart-rate alerts. The watch also tracks sleep, blood oxygen, stress, steps, calories, distance and exercise duration, and offers water and stand-up reminders plus an Active Score. Nothing describes the heart-rate, SpO₂ and stress features as tools for personal reference, not medical use; they should not be treated as diagnosis or clinical monitoring.
Nothing says the watch can detect seven activity types, including walking, running, cycling and rowing. Its support guidance gives specific minimum durations for automatic detection, so a workout may not be logged from the moment you start:
Rank #2
- 24/7 Health Tracking: Watch 3 Pro can monitor heart rate, blood oxygen (SpO₂), stress levels in real time with an advanced 4-channel sensor for improved accuracy during activity and rest. This health tracker smartwatch can offer advanced sleep tracking helps analyze naps, recovery, and sleep quality for better daily wellness insights.
- 130+ Sports Modes: The sports smartwatch supports 130+ exercise modes with GOMORE-powered performance analysis, 7-type motion recognition, and precision activity tracking to help monitor workouts, training load, recovery, and daily movement more accurately. Active Score (MET-based fitness tracking), precision step counting, and smart health guidance help support a healthier lifestyle.
- Smart Everyday Convenience: Stay connected with the bluetooth smartwatch featuring dual high-performance MEMS microphones, a built-in speaker, and AI-based noise reduction trained on over 100,000 voice samples for clearer calls. Make and receive calls directly from your wrist, sync up to 30 contacts for quick access, control music playback, and send quick replies while working, commuting, cooking, or exercising without constantly checking your phone.
- 13-Day Battery Life: Enjoy up to 13 days of battery life on the smartwatch with just 2.5 hours charging time for daily use. Designed for work, workouts, travel, and busy schedules, CMF Watch 3 Pro delivers reliable power for music playback, quick replies, calls, and everyday activity tracking without frequent charging interruptions.
- AMOLED Display & Smart Lifestyle Sync: Featuring a vibrant AMOLED display, this smartwatch for Android and iPhone delivers clear visibility for health data, messages, and workouts indoors or outdoors. Seamlessly sync with Apple Health, Google Fit, and Strava to manage fitness tracking, wellness insights, and daily activity data in one connected ecosystem.
- Indoor or outdoor continuous running: after 3 minutes.
- Indoor or outdoor continuous walking: after 10 minutes.
- Outdoor cycling: after 10 minutes.
- Elliptical and rowing machine: after 3 minutes.
The watch’s GPS is built in, which means it can record GPS workouts without relying on the phone’s GPS. That does not make the rest of the watch independent: notifications, calls, weather updates, data syncing and ChatGPT rely on a Bluetooth-connected phone or the Nothing X ecosystem.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallRunning plans are structured, not open-ended coaching
Nothing’s Custom Running Coach flow creates a plan around a target distance, desired completion time and training schedule. In Nothing X, the setup asks you to choose a 3 km, 5 km or 10 km target; a target time between 12 and 25 minutes; an 8- to 16-week plan; three to six training days per week; a start date; and whether to complete an evaluation run before generating the plan.
That structure could help a beginner establish a routine. The documented feature set alone does not establish that the plan offers the depth of a human coach or a dedicated running platform with extensive training-load analytics, so runners who depend on detailed performance guidance should compare those capabilities rather than infer them from the “coach” label.
Rank #3
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Data and phone ecosystem
Nothing X is the control center for pairing, settings, watch faces, health data, firmware updates and fitness plans. Nothing says data can sync with Google Health Connect, Apple Health and Strava through the app. Google Health Connect requires Android 9 or later; Nothing X’s broader minimums are Android 6.0 and iOS 13, which should not be confused with ChatGPT compatibility.
Nothing recommends updating the app and watch firmware after first pairing. Many background features and notifications require Nothing X to remain active in the background. The watch cannot connect directly to Bluetooth earphones, and music playback depends on the phone; third-party-app voice calls are not supported. See Nothing’s health-monitoring feature list for the full set of listed measurements and reminders.
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Nothing describes the watch as a way to speak natural-language prompts and ask ChatGPT questions, get facts or plan a day. The practical setup makes clear that this is a wrist-based interface to the ChatGPT app on a phone, not an independent cellular ChatGPT client. The phone must be running Nothing OS, and it needs the ChatGPT app, an account signed in, microphone permission and a Bluetooth/app connection.
Rank #4
- All-Round Health Monitor,Your Health Journey: CMF Smart Watch Pro 2 is a portable blood oxygen saturation monitor designed for both men and women. The heart monitor tracks your heart rate continuously for 24 hours a day, along with recording sleep patterns, stress levels, and SpO₂ levels. Seamlessly sync and manage your fitness data across Apple Health, Google Health Connect, and Strava. You can also synchronize data between your app and the watch for comprehensive health tracking.
- Bluetooth Calls and Gesture Control:The CMF Smartwatch enables crystal-clear Bluetooth phone calls with enhanced AI noise reduction technology. Equipped with a built-in microphone and speaker, the Watch Pro 2 ensures seamless communication. You can add and manage up to 30 contacts on your watch, allowing you to handle calls directly from your wrist. Real-time message reminders are also supported.The new gesture control feature allows one-handed operation of the watch using wrist movements. For example, flipping your wrist once or twice can trigger customized functions such as answering/rejecting/ignoring incoming calls, skipping to the next/previous music track, performing other operations.
- Interactive Design with Interchangeable Bezels and Straps:The CMF Watch Pro 2 features a 1.32" AMOLED display that delivers sharp, vibrant visuals with enhanced resolution (466 x 466), 353 PPI, and a refresh rate of 60Hz. It is a stylish and feature-packed smartwatch offering an interchangeable bezel design and removable watch straps, allowing effortless switching between styles to suit any occasion. With over 100 signature watch faces and customizable options, you can create personalized combinations.
- 120 Sports Modes with IP68 Waterproof: The CMF fitness tracker smartwatch is IP68 waterproof and supports 120 sports modes, including smart automatic recognition of 5 common activities. It features a 3D warm-up exercise guide and 'My Heart Rate' for personalized heart rate zones. The Smart Movement Algorithm tracks sports data, measures aerobic and anaerobic training effectiveness, training load, and recovery time. Fitness data can be seamlessly shared with Apple Health, Google Health Connect, and Strava.
- Smoothly Watch APP and More Performance: Enjoy seamless connectivity with the CMF Watch app. Manage and control your preferred features with a long battery life of up to 11 days. The watch offers smart functionalities including notifications, quick Android SMS replies, find my phone, camera control, alarms, timers, weather forecasts, music control, and multi-system GPS.
Nothing X supporting iPhones and many Android phones does not mean ChatGPT works on all of them. Nothing’s stated restriction is Nothing OS. An iPhone owner may be able to use Nothing X for other watch functions but should not buy this watch expecting the advertised ChatGPT feature to work on iOS.
Set up ChatGPT
- Pair the watch with the Nothing X app and keep the phone connected to the watch.
- In Nothing X, open My Devices and select the CMF Watch 3 Pro.
- Open ChatGPT and turn on the gray switch to add the feature to the watch.
- Install and open the ChatGPT app on the phone, then sign in to an account.
- Allow microphone access and select a voice tone in the ChatGPT app.
- Start ChatGPT from the watch and speak a prompt.
Nothing warns that the watch may repeatedly show a session-timeout message if the ChatGPT phone app is not installed, signed in or granted microphone access. If it times out, check those prerequisites first, then confirm the phone runs Nothing OS, Nothing X and watch firmware are updated, and Bluetooth is still connected. These checks follow from Nothing’s stated requirements rather than a separate official troubleshooting sequence. The setup guidance is in Nothing’s CMF Watch 3 Pro support center.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Battery, water resistance and other limits
Nothing advertises up to 13 days of typical battery life, up to 10 days with heavy use and up to 4.5 days with Always-On Display. The typical-use figure is a company estimate based on a defined usage profile that includes screen activations, notifications, Bluetooth calls, workouts, GPS searches and limited GPS tracking. Frequent GPS use, calls, high screen brightness and Always-On Display can change real-world endurance; treat the figures as scenarios, not a promise of the same duration for every owner.
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Best Value
- CMF Watch Pro 2 is a portable blood oxygen saturation monitor.The heart monitor tracks your heart rate continuously for 24 hours a day, along with recording sleep patterns,stress,SpO ₂ levels.Seamlessly sync and manage your fitness data across Apple Health,Google Health Connect.For the best heart rate measurement,wear the watch a 1-2 fnger width distance from your wrist bone.To ensure that your Google Health Connect can work properly,please make sure your phone is updated to Android 9.0 or above
- The CMF Smartwatch enables crystal-clear Bluetooth calls with AI noise reduction, a built-in mic, and speaker, supporting 30 contacts. New gesture control allows one-handed operation for calls, music, and more. Requires Android 8.0/iOS 13+. Download the CMF Watch App, update firmware, and keep it updated for the best experience.
- 120 Sports Modes with IP68 Waterproof:The CMF fitness tracker smartwatch is IP68 waterproof and supports 120 sports modes,including smart automatic recognition of 5 common activities.It features a 3D warm-up exercise guide and ‘My Heart Rate' for personalized heart rate zones.The Smart Movement Algorithm tracks sports data,measures aerobic and anaerobic training effectiveness,training load,and recovery time. Fitness data can be seamlessly shared with Apple Health,Google Health Connect,and Strava
- Smoothly Watch APP and More Performance: Enjoy seamless connectivity with the CMF Watch app. Manage and control your preferred features with a long battery life of up to 11 days. The watch offers smart functionalities including notifications, quick Android SMS replies, find my phone, camera control, alarms, timers, weather forecasts, music control, and multi-system GPS.
- For accurate GPS positioning, ensure you're in an open area, connect to the app at least every 7 days, avoid locations with potential signal interference or large public transportation systems, and maintain a proper connection between your watch and phone.Note:If there is any malfunction with the watch, you can check it according to the instructions or contact us directl
The IP68 rating is based on controlled laboratory testing, but Nothing explicitly advises against using the watch for swimming, hot showers, saunas, scuba diving, high-pressure water or other high-temperature or high-pressure activities. The rating can decline with normal wear, so IP68 should not be read as a swimming guarantee.
Compatibility at a glance
| Phone or feature | What to expect |
|---|---|
| Android phone | Nothing X supports Android 6.0 or later. Many functions require the app to stay active in the background. |
| iPhone | Nothing X supports iOS 13 or later, but ChatGPT is not currently supported on iPhone. |
| Nothing OS phone | Required for the currently supported ChatGPT integration; the ChatGPT app must also be installed, signed in and allowed to use the microphone. |
| Google Health Connect | Supported through Nothing X on Android 9 or later. |
| GPS workout recording | Built-in GPS can track workouts without the phone’s GPS; other connected features may still need the phone. |
| Calls and notifications | Bluetooth calling and message delivery require a phone connection; calls through third-party apps are not supported. |
| Music and earphones | Music playback depends on the phone; the watch cannot connect directly to Bluetooth earphones. |
| Camera remote | Not stated in the cited official product-feature information. |
| Quick replies | Not stated in the cited official product-feature information. |
Price, availability and colors
The CMF Watch 3 Pro is a launched, available product, not a forthcoming announcement. Nothing’s U.S. product page listed a $99 reference price and showed $79 on August 18, 2026; its U.S. CMF collection page showed $65 on the same date. Those differing page displays may reflect a promotion or page-specific pricing, so check the live listing for your region rather than treating either sale figure as permanent.
Regional pricing is not interchangeable: Nothing’s India early-access post listed ₹6,999, not a global price. That post listed Orange, Light Grey, Dark Grey and Light Green, but availability of those colors can vary by market. See the India launch post, the U.S. CMF collection and the U.S. product page for their respective listings.
Quick Recap
Who should buy it—and who should look elsewhere
It makes sense for
- Nothing-phone owners who want to try the ChatGPT wrist interface alongside calls and notifications.
- Budget-conscious Android users seeking built-in GPS, general health tracking and a large AMOLED display.
- Casual runners who want activity tracking and a guided plan for a 3 km, 5 km or 10 km goal.
- Buyers who value smartwatch conveniences and long claimed battery life as much as detailed training metrics.
Look elsewhere if
- You use an iPhone and ChatGPT is the main reason you are considering this watch.
- You are a serious runner who needs established training analytics, granular performance data or a coaching platform you have already vetted.
- You need a watch for swimming, diving or other water-intensive activities.
- You want medical-grade readings or a fully independent cellular smartwatch.
Alternatives by priority
- Fitness-first budget smartwatch: TechRadar identifies the Amazfit Active 2 as a significant competitor around the CMF Watch 3 Pro’s $99 reference-price tier. Compare current specifications and regional prices before deciding. TechRadar’s comparison context; Amazfit.
- Slimmer activity tracker: The Xiaomi Smart Band 9 Pro is a form-factor alternative for buyers more interested in activity tracking than calls or ChatGPT. Xiaomi.
- Running specialization: Garmin’s entry-level running watches are worth considering if training tools and running metrics matter more than AI features. Garmin.
- iPhone or Samsung ecosystem integration: Apple Watch SE or Samsung Galaxy wearables may fit buyers prioritizing platform integration, though they are not direct substitutes for the CMF’s low-price and long-battery-life emphasis. Apple Watch; Samsung Galaxy wearables.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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