The CMF Watch 3 Pro is a compelling budget smartwatch if your priorities are long battery life, built-in GPS, notifications, and guided running plans. Launched on July 22, 2025, at $99 in the US, it raises Nothing’s rated typical-use endurance from 11 days on the CMF Watch Pro 2 to 13 days. It also adds a Custom Running Coach that builds an 8-to-16-week plan around a 3K, 5K, or 10K goal.
That makes “AI fitness coaching” a fair shorthand, but not a complete description. The coaching is best understood as an adaptive, app-based running-plan system rather than a conversational human-like personal trainer. Battery life is similarly impressive on paper, though Always-On Display, frequent GPS use, calls, and intensive health tracking can reduce the result substantially.
What is new about the CMF Watch 3 Pro?
The two meaningful upgrades are endurance and training guidance:
- Longer rated battery life: up to 13 days of typical use, compared with 11 days for the CMF Watch Pro 2.
- Custom Running Coach: an adaptive plan lasting between eight and 16 weeks, configured around a runner’s goal, ability, schedule, and recovery.
The watch also combines a 1.43-inch 60Hz AMOLED display, dual-band GPS, Bluetooth calling, health tracking, and 131 sports modes in a package aimed at buyers who do not want to pay flagship-watch prices.
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The $99 figure is the US launch price, not necessarily the price you will pay today. During research, Nothing’s US store displayed the watch at $65 against a crossed-out $99 price. Amazon promotions also brought the price below $79, with some reported deals in the roughly $61.75-to-$69 range. These discounts are time-sensitive and can vary by country, color, retailer, and date. Buyers should compare the current price with the $99 launch MSRP rather than assuming either figure is permanent.
#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.
For shoppers comparing retailers, the CMF Watch 3 Pro on Amazon is worth checking alongside Nothing’s own store because availability and promotions can differ.
Battery life: a real upgrade, with important conditions
Nothing rates the CMF Watch 3 Pro for:
| Usage profile | Rated endurance |
|---|---|
| Typical use | Up to 13 days |
| Heavy use | Up to 10 days |
| Always-On Display enabled | Up to 4.5 days |
The predecessor was rated for up to 11 days of typical use and nine days of heavy use. On Nothing’s own figures, that is a two-day improvement for typical use and a one-day improvement for heavy use.
Nothing’s typical-use scenario includes periodic heart-rate readings, notifications, alarms, screen use, Bluetooth calls, and a limited amount of GPS activity. It does not mean that every owner will see 13 days between charges. Always-On Display, frequent outdoor GPS tracking, repeated Bluetooth calls, high notification volume, and more intensive health monitoring can all reduce endurance.
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Independent reviews generally agreed that the battery is unusually strong for a watch at this price, while also reporting shorter results under heavier settings than Nothing’s headline claim. The sensible conclusion is that the 13-day figure is a manufacturer rating supported by favorable real-world impressions—not a guaranteed ownership result.
What does the AI fitness coaching actually do?
The main coaching feature is called Custom Running Coach. Setup takes place in the Nothing X app, where users can select:
- a 3K, 5K, or 10K training target;
- a target completion time;
- an eight-to-16-week plan duration;
- three to six training days per week; and
- whether to complete an evaluation run before the plan is generated.
The plan is intended to adapt to the runner’s goals, fitness level, and recovery. Nothing positions it around improvements such as VO₂ max and fat-burning performance. After workouts, the watch and app provide summaries, intensity feedback, recovery suggestions, estimated recovery time, training-load trends, and endurance predictions for 5K or 10K efforts.
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.
That is more useful than a basic step counter or a watch that merely records pace and distance. A beginner can use it to turn a vague goal—such as finishing a 5K—into scheduled sessions. A more experienced runner may appreciate the structure and recovery prompts.
However, the feature should not be confused with the deepest training ecosystems from premium Garmin, Apple, or Polar watches. The research supports describing it as a structured adaptive running-plan system. It does not support claiming that the watch replaces a human coach or provides equivalent advanced analysis.
GPS, sports modes, and workout tracking
The CMF Watch 3 Pro includes built-in dual-band GPS, using L1 and L5 signals. It supports GPS satellite systems including GLONASS, Galileo, BeiDou, and QZSS. Dual-band positioning is a notable specification at this price because it can help a watch maintain positioning in challenging environments such as dense urban areas, although satellite performance still depends on surroundings, signal conditions, and software.
Nothing lists 131 sports modes, with automatic detection available for selected activities. Workout data includes familiar metrics such as:
- heart-rate zones;
- pace and exercise duration;
- calories;
- recovery-time estimates;
- training-load trends;
- VO₂-max trends; and
- predicted endurance for 5K and 10K runs.
This is a broad feature list for a $99 launch-price watch, but the number of sports modes should not be mistaken for professional-grade analysis in every activity. The strongest case for the watch is casual fitness and structured running, not specialist training across every sport.
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Rank #3
- Perfect Fit for CMF by Nothing smart watch, ensuring seamless compatibility and easy installation without gaps or misalignment.
- Smooth and dense silicone with a more comfortable “skin-grade” material. Elegantly wraps around the wrist to provide a comfortable touch on the skin.
- Sweatproof & Water-Resistant – Designed to withstand intense workouts, rain, or handwashing, with quick-dry properties to prevent odor buildup and maintain hygiene.v
- Breathable & Durable Design – Engineered with ventilation holes to enhance airflow and reduce heat buildup, while reinforced edges prevent fraying for long-lasting use.
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Health tracking and safety limitations
The health tools include heart-rate monitoring, blood-oxygen measurements, stress monitoring, sleep tracking, steps, calories, breathing exercises, water and stand reminders, menstrual-cycle tools, and Nothing’s Active Score.
These measurements are intended for health and personal reference. They are not medical diagnostics and should not be used to make medical decisions or replace professional advice. Readings can also be affected by fit, movement, skin contact, exercise intensity, and other normal sources of wearable-measurement error.
IP68 does not make it a swimming watch
The CMF Watch 3 Pro is laboratory-tested to IP68 under specified conditions, but Nothing warns against swimming, diving, hot showers, saunas, high-pressure water, and other demanding exposure. Do not translate the rating into “safe for swimming.” Someone who specifically wants a watch for pool workouts or open-water swimming should look elsewhere or follow the manufacturer’s current water-resistance guidance very carefully.
Smartwatch features and ecosystem trade-offs
The 1.43-inch AMOLED display has a 60Hz refresh rate. The watch supports notifications, alarms, Bluetooth calls, weather information, and other everyday functions. Many features depend on maintaining a Bluetooth connection to a smartphone, including weather synchronization, messages, and calls. Third-party app voice calls are not supported.
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Data can sync through the Nothing X app with Google Health Connect, Apple Health, and Strava. That makes the watch more practical for users who already organize their activity data in one of those services, although the watch is not a substitute for a mature third-party-app ecosystem.
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 also lists AI-generated watch faces, AI-powered noise reduction for Bluetooth calls, Essential News, and ChatGPT integration. The ChatGPT feature has an important restriction: Nothing’s product disclaimer limits support to Nothing OS phones. It should not be presented as a universally available watch feature for every Android or iPhone owner. Feature availability can also vary by region and phone setup.
What is missing?
The biggest omissions matter more to some buyers than others:
- No NFC: independent reviews noted that the watch does not provide NFC payment support, so it is not a replacement for a smartwatch that can handle contactless payments.
- Limited water-use freedom: the IP68 rating does not mean unrestricted swimming or diving.
- Phone dependence: several functions require a connected smartphone, and advanced setup such as Custom Running Coach happens in Nothing X.
- Restricted ChatGPT availability: the integration is limited to Nothing OS phones according to Nothing’s disclaimer.
- Less mature than premium training platforms: the running tools are useful, but the watch is not positioned as an elite athlete’s complete training ecosystem.
CMF Watch 3 Pro versus CMF Watch Pro 2
| Feature | CMF Watch 3 Pro | CMF Watch Pro 2 |
|---|---|---|
| US launch price | $99 | Previous-generation model |
| Rated typical-use battery | Up to 13 days | Up to 11 days |
| Rated heavy-use battery | Up to 10 days | Up to 9 days |
| GPS | Built-in dual-band GPS | Not the focus of this comparison |
| Running guidance | Custom 3K, 5K, and 10K plans lasting 8–16 weeks | Does not offer the same highlighted Custom Running Coach feature |
The upgrade is easiest to justify for someone who wants the newer running tools or values every extra day of battery life. Existing Watch Pro 2 owners who are satisfied with their current endurance and workout tracking have less reason to upgrade solely for the headline battery number.
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The watch is a strong fit for:
- budget-conscious buyers who want a full-size AMOLED smartwatch;
- runners who want a guided 5K or 10K plan without subscribing immediately to a separate coaching service;
- people who dislike charging a watch every day or two;
- users who want built-in GPS rather than relying entirely on a phone;
- buyers who value notifications, Bluetooth calls, health tracking, and broad sports-mode coverage more than premium apps.
It is a weaker fit for:
- swimmers and divers;
- anyone who expects NFC payments;
- iPhone or non-Nothing-phone users specifically interested in the ChatGPT integration;
- athletes who need highly advanced training analytics and a deeply established sports ecosystem; and
- buyers who expect all features to work without a smartphone connection.
Verdict
The CMF Watch 3 Pro makes a persuasive budget case because it improves the previous model’s rated typical battery life by two days while adding a genuinely useful running-planning feature. Dual-band GPS, an AMOLED display, recovery guidance, health tracking, and 131 sports modes give it a feature set that is unusually broad for a watch launched at $99.
The qualifications are just as important. Thirteen days is a best-case manufacturer rating rather than a promise, the AI coaching is primarily structured running guidance, IP68 is not a swimming guarantee, and there is no NFC for payments. ChatGPT support also depends on owning a Nothing OS phone.
Best Value
- 【Wide Smartwatch Compatibility】These watch strap are compatible with CMF BY NOTHING Pro 3/ Pro/Pro 2. Features precision quick-release spring bars for secure attachment.
- 【Breathable & Skin-Friendly Nylon】Made from premium lightweight nylon, this band for CMF Watch Pro 3 is sweat-resistant, quick-drying, and washable. Ideal for workouts, daily wear, and sensitive skin – perfect for all ages and genders.
- 【Tool-Free Quick Release Design】Equipped with quick-release spring bars, you can change bands in seconds without tools. Securely locks onto your watch to prevent accidental detachment.
- 【Customizable Fit with Adjustable Velcro】Five reinforced Velcro adjustments provide a precise fit for wrists 6.2”–9.1” (160–230mm). No more sizing hassle – adjust easily on the go.Available in six vibrant colors: classic Black, sophisticated Gray, calm Indigo Blue, fresh Seashell, vibrant Bright Cyan, and energetic Lime Green.
- 【A Gift That Keeps Them Comfortable】Surprise your loved ones with this practical yet thoughtful 2-pack nylon watch band set. Perfect for festive celebrations like Christmas, Valentine’s Day, birthdays, or Father’s & Mother’s Day—it’s a gift that says “I pay attention to what you need.”
Buy it if you want an inexpensive, long-lasting fitness smartwatch with built-in GPS and guided running plans. Skip it if contactless payments, unrestricted water use, advanced athlete-grade analytics, or a premium app ecosystem are essential.
Frequently Asked Questions
Is the CMF Watch 3 Pro really a $99 smartwatch?
$99 was the US launch price on July 22, 2025. Nothing’s US store displayed a discounted $65 price during research, and Amazon promotions have also lowered the price at times. Check the current listing because prices vary by retailer, region, color, and date.
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It has a Custom Running Coach that creates an eight-to-16-week plan for a 3K, 5K, or 10K goal. It uses goals, fitness level, schedule, and recovery information, but it is more accurately described as an adaptive app-based running-plan system than a complete conversational personal trainer.
How long does the CMF Watch 3 Pro battery last?
Nothing rates it for up to 13 days of typical use, 10 days of heavy use, or up to 4.5 days with Always-On Display enabled. Frequent GPS use, calls, notifications, and intensive tracking can reduce endurance.
Can you swim with the CMF Watch 3 Pro?
Nothing’s IP68 testing does not make the watch suitable for unrestricted swimming or diving. The company warns against swimming, diving, hot showers, saunas, high-pressure water, and similar exposure.
Does the CMF Watch 3 Pro support contactless payments?
Independent review coverage reports that it lacks NFC, so it should not be bought for contactless payment support.
Does ChatGPT work with every phone?
No. Nothing’s product disclaimer limits ChatGPT support to Nothing OS phones. Availability may also vary by region and software setup.
The Bottom Line
Bottom line: The CMF Watch 3 Pro is one of the more convincing low-cost smartwatch options for buyers who prioritize battery life, built-in GPS, and guided running. Its 13-day rating and adaptive coaching are meaningful advantages, but they should be weighed against the lack of NFC, restricted water guidance, smartphone dependence, and the limits of budget-level training analytics.
