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The CMF Watch 3 Pro is a budget smartwatch from CMF, Nothing’s value-focused sub-brand—not a watch sold under Nothing’s main brand. Launched on July 22, 2025, it combines fitness tracking, built-in dual-band GPS, Bluetooth calling, AI-assisted coaching and long battery life.
Its original U.S. price was $99. Official Nothing pages viewed on August 18, 2026 showed sale prices of $65 and $79, while Apple’s current U.S. entry-level Apple Watch SE 3 starts at $249. That makes the CMF Watch 3 Pro roughly one-quarter to one-third the price of Apple’s cheapest current watch, depending on the price and model used.
What is the CMF Watch 3 Pro?
The CMF Watch 3 Pro is designed primarily as an inexpensive fitness and phone-companion watch. CMF is Nothing’s value-oriented sub-brand, so calling this simply a “Nothing smartwatch” is misleading: it does not occupy the same product or software position as a main-brand Nothing device.
The watch focuses on health and wellness measurements, workouts, notifications, Bluetooth calls and battery endurance. It works through the Nothing X app, which handles setup, customization, data synchronization and several of its AI-related features.
#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.
It is therefore best understood as a low-cost fitness smartwatch—not a full Apple Watch substitute.
What does “AI-powered” actually mean?
“AI-powered” covers several different features rather than one autonomous AI assistant running independently on the watch.
- AI running guidance: Nothing describes personalized running coaching, recovery suggestions and custom plans created or adjusted through the Nothing X app.
- ChatGPT-related functionality: ChatGPT integration is listed among the Nothing X app’s features. The available information does not establish that a general-purpose ChatGPT model runs locally on the watch.
- Voice features: Supported voice interactions can be used for certain functions, with the phone and app playing an important role.
- Voice memo transcription: Voice memos can be transcribed in Nothing X.
- Call noise reduction: Nothing says its AI noise-reduction system was trained using more than 100,000 voice samples.
That makes the CMF Watch 3 Pro an AI-assisted fitness and app device. Buyers should not assume it offers unrestricted, offline, on-watch AI or the same assistant experience as a premium smartwatch platform. Availability may also depend on the Nothing X app, phone connection, account setup and region.
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| Feature | CMF Watch 3 Pro |
|---|---|
| Display | 1.43-inch AMOLED; peak brightness reported at 670 nits |
| GPS | Built-in dual-band GPS |
| Connectivity | Bluetooth 5.3 |
| Health sensors | Four-channel heart-rate sensor and six-axis accelerometer |
| Sports tracking | 131 sports modes, including seven smart-recognition activities |
| Watch faces | More than 120 customizable options |
| Calls | Bluetooth calling through built-in microphones and speaker |
| Contacts | Up to 30 quick-access contacts, according to Nothing |
| Durability | IP68 dust and water resistance |
| Battery | Up to 13 days of typical use |
| Companion app | Nothing X |
The dual-band GPS is a notable feature at this price, but it should be treated as a specification and manufacturer claim—not a promise of premium-watch-level accuracy in every environment.
Battery life: the 13-day claim needs context
Nothing rates the CMF Watch 3 Pro for up to 13 days of typical use. Its other stated figures are around 10 days under heavier use and approximately 4.5 days with the always-on display enabled.
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.
Those figures are usage-dependent. GPS workouts, frequent calls, repeated screen activation, continuous health measurements, notifications and always-on display use can reduce endurance substantially. TechRadar reported a full charge time of about 99 minutes, although that figure should not be treated as a universal result for every charger or software version.
Even with those qualifications, the CMF’s claimed endurance is a major advantage over an Apple Watch. Apple’s watches support a broader range of connected apps, services and safety features, however, so the shorter battery life reflects a more capable and integrated platform rather than a like-for-like design.
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Health and fitness features
The watch includes consumer wellness features such as:
- Heart-rate monitoring
- Blood oxygen measurements
- Stress tracking
- Sleep tracking
- Guided breathing
- Women’s health tools
- Recovery insights
- Inactivity and hydration reminders
- VO₂ max and other fitness insights through Nothing X
- Workout and running guidance
These readings can be useful for general fitness and habit tracking, but they are not medical measurements. Nothing states that the heart-rate, SpO₂ and stress features are not intended for diagnosis, prevention, clinical monitoring, prediction, prognosis or treatment of disease.
Do not use the watch to diagnose an irregular heartbeat, sleep disorder or blood-oxygen problem. Anyone with symptoms or a medical concern should use clinically appropriate equipment and seek professional advice.
Rank #3
- 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.
CMF Watch 3 Pro versus Apple Watch
| Category | CMF Watch 3 Pro | Apple Watch |
|---|---|---|
| Price | $99 launch price; official U.S. pages showed $65 and $79 sale prices on August 18, 2026 | Apple Watch SE 3 from $249; Series 11 from $399 |
| Battery | Up to 13 days typical use; about 4.5 days with always-on display | Much shorter stated endurance, but with a broader connected feature set |
| Phone support | Uses Nothing X and is not limited to iPhone | Designed for iPhone; Android phones are not supported |
| GPS | Built-in dual-band GPS | GPS models available, depending on Apple Watch configuration |
| Apps | Focused on built-in functions and Nothing X | Larger and more mature watchOS app ecosystem |
| Calls | Bluetooth calls through a connected phone | Bluetooth calls; cellular models can operate more independently |
| Health and safety | Fitness and wellness tracking | More extensive health, emergency and safety integration on supported models |
| Payments and services | Not an Apple Pay or watchOS equivalent | Deep integration with Apple services and accessories |
Apple’s current U.S. lineup includes the Apple Watch SE 3 from $249, Series 11 from $399 and Ultra 3 from $700. The CMF Watch 3 Pro is dramatically cheaper, but it also provides a narrower software and ecosystem experience.
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Is it really a quarter of the price?
The answer depends on which price and Apple Watch model you compare:
- $65 versus the $249 Apple Watch SE 3: about 26% of the price.
- $79 versus the $249 Apple Watch SE 3: about 32%.
- $99 launch price versus the $249 SE 3: about 40%.
- $65 versus the $399 Apple Watch Series 11: about 16%.
- $79 versus the $399 Series 11: about 20%.
- $99 launch price versus the $399 Series 11: about 25%.
So “quarter of the price” is mathematically accurate when comparing the original $99 CMF price with the $399 Series 11. It is not accurate for every Apple Watch comparison. For the SE 3, “roughly one-quarter to one-third the price” is more precise at the observed sale prices.
Nothing’s official pages showed different sale prices, and promotions, stock and regional pricing can change. Check the official product page and checkout listing before buying.
Phone compatibility and app limitations
The CMF Watch 3 Pro relies heavily on Nothing X. The app can synchronize information with Google Health Connect, Apple Health and Strava. However, the available information does not provide a verified current compatibility list for every Android and iPhone version.
Rank #4
- 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
Before purchasing, check Nothing’s current Nothing X requirements and regional support. Compatibility with an iPhone does not mean Apple Watch-equivalent functionality. iPhone users should not expect deep Continuity integration, Apple Pay, a comparable watchOS app library or cellular independence.
Nothing-phone owners may receive additional integration, including remote camera control. Android users should verify that their phone supports Nothing X and that the features they want are available in their region.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Who should buy the CMF Watch 3 Pro?
It makes sense for:
- Android and Nothing-phone users seeking inexpensive fitness tracking.
- Buyers who value multi-day battery life over apps.
- People who want built-in GPS, notifications and Bluetooth calls without paying for a premium smartwatch.
- Users comfortable with AI coaching and other features mediated by a phone app.
- Anyone who wants general wellness data rather than medical monitoring.
Choose an Apple Watch instead if you:
- Own an iPhone and want the deepest platform integration.
- Need Apple Pay, cellular service, emergency features or a broad watchOS app selection.
- Want stronger integration with Apple services, accessories and safety tools.
- Prefer a more complete smartwatch rather than a fitness-focused phone companion.
Android users who need Wear OS apps, Google Wallet, advanced navigation, LTE independence or broader third-party support should investigate other Android-compatible platforms rather than assuming the CMF watch offers those capabilities.
Important caveats before buying
IP68 is not “waterproof”
IP68 describes defined dust and water-ingress testing. It is not a blanket guarantee for diving, high-pressure water, saunas or every swimming situation. Do not treat the watch as waterproof simply because it carries an IP68 rating.
AI features may need your phone
Coaching, ChatGPT-related functions, transcription and app-based insights may depend on Nothing X, a connected phone, an account and regional availability. The watch should not be purchased on the assumption that it is a fully independent AI computer.
Best Value
- 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.
Fitness readings are estimates
Heart rate, blood oxygen, stress, sleep and recovery results are wellness estimates. They should not replace clinical devices or medical advice.
Price and availability can change
The $99 figure is the original U.S. launch price. The $65 and $79 figures were conflicting prices shown on official U.S. pages on August 18, 2026, not a permanent guaranteed price.
Verdict
The CMF Watch 3 Pro is compelling as a low-cost fitness, notification and calling watch. Its built-in GPS, long claimed battery life and app-based AI features give it more substance than a basic tracker, especially for Android and Nothing-phone owners.
But it is not a cheap Apple Watch in the full platform sense. iPhone buyers give up deep ecosystem integration, the watchOS app library, Apple Pay, cellular options and broader safety features. Buy the CMF Watch 3 Pro if you want affordable fitness tracking and long battery life; choose an Apple Watch if you want a more capable iPhone companion.
Quick Recap
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.
