Compare CMF Watch 3 Pro vs CMF Watch Pro 2

Activity auto-detection exists and can work for walks and common activities, but one reviewer warns that manual workout starts are still safer.

Auto-detection exists for walking, running, and cycling, but reviewers split between successful prompts and delayed, missed, or false detections.

The app ecosystem is limited: syncing with fitness services helps, but the proprietary OS lacks the breadth of Wear OS or full third-party app access.

The watch has a closed, basic app ecosystem: the companion app is available, but there is no onboard app store or downloadable app catalog.

Band quality is mixed: several reviewers like the soft, replaceable strap, while others call it floppy, lighter-quality, or irritating.

Band feedback is mixed, with several reviewers finding the straps comfortable or good quality while others called the leather or silicone options cheap-feeling.

Battery life is one of the strongest points, with many reviewers seeing multi-day to week-plus endurance and some highlighting 13-day claims or better-than-expected results.

Battery life is a repeated strength, commonly landing from four to twelve days depending on always-on display, health monitoring, GPS, and calling use.

Blood oxygen tracking is present, with alerts or spot readings mentioned, and one reviewer found readings close to a pulse oximeter, though reviewers did not deeply validate it.

Blood oxygen tracking is present and often works acceptably for spot or continuous readings, though it is part of a broader basic health-tracking package.

Bluetooth connectivity is mostly stable once paired in positive reviews, though one reviewer notes the connectivity stack is limited to Bluetooth Low Energy.

Bluetooth support enables phone pairing and calls, but reliability varies sharply, with some reviewers reporting stable connections and others seeing frequent disconnects.

Brightness is adequate in some normal situations, but reviewers often call it low by current standards or wish it were brighter.

Brightness is generally strong for the price indoors and in many outdoor conditions, but several reviewers found auto-brightness or direct-sun readability imperfect.

Build quality divides reviewers: several find the fit and finish surprisingly good for the price, while others call it cheap, plasticky, rattly, or toy-like.

Build quality is praised for the price by some reviewers, especially the aluminum construction, while others felt the lightweight body and crown exposed budget compromises.

Button controls are mostly liked, especially the crown, haptics, and shortcuts, but reviewers also note size or underused crown interactions.

The rotating crown is useful and sometimes praised, but it is also described as stiff, flimsy, awkward, or cheap-feeling in several reviews.

Call handling is better than expected for a budget smartwatch, with reviewers reporting usable microphones and clear calls, though speaker loudness can limit outdoor use.

Bluetooth calling is one of the better smart features, with multiple reviewers saying the mic and speaker were usable or good for wrist calls.

Calorie data is useful as part of workout summaries for casual tracking, but reviewers treat it as general guidance rather than laboratory-grade measurement.

Calorie tracking has limited support and one reviewer found calorie estimates off, so it should be treated as a rough indicator rather than a precise metric.

Charging convenience is a consistent complaint because the proprietary magnetic connector is flimsy, easy to dislodge, or awkward to use.

Charging uses a small magnetic pogo-pin cable that works, but reviewers often found it fiddly, weakly attached, or easy to misalign.

Charging speed is acceptable rather than exceptional, usually described around 90 to 99 minutes for a full charge or decent partial top-ups.

Charging speed is average rather than fast, with reviewers citing roughly 90 to 120 minutes for a full charge.

Coaching features are a clear selling point, especially the running coach and AI plan guidance, although reviewers treat it as helpful rather than flawless.

Coaching is modest but surprisingly present for the price, mainly through guided warm-ups, active score, training load, workout effectiveness, and recovery-time estimates.

Comfort is generally helped by the low weight, though size, poor fit for some wrists, and one uncomfortable experience keep it from being universally comfortable.

Comfort is a consistent positive, helped by low weight, soft straps in some configurations, and a case size that several reviewers found easy to wear.

The companion app is cleaner and more polished than before, but limitations around workout records, battery drain, language issues, exports, and data depth remain.

The companion app ranges from excellent and clear to buggy depending on reviewer, with several praising the design while others saw syncing, export, or crash issues.

Contactless payments are a clear miss: multiple reviewers note the absence of NFC or wallet payments.

Contactless payments are absent; reviewers repeatedly cite no NFC or wireless payments as a key missing smartwatch feature.

Cross-platform compatibility is a strength for a budget watch, with reviewers noting Android and iPhone support and basic assistant use across platforms.

Cross-platform compatibility is a strength, with the watch working on both Android and iPhone through the CMF Watch app.

Customization is mixed: watch faces, widgets, gestures, AOD and bands give flexibility, but the lost interchangeable bezel and limited widget or face storage disappoint reviewers.

Customization is a signature appeal through swappable bezels, 22mm bands, widgets, and watch faces, though availability and storage limits reduce the promise.

Display quality is generally praised for the AMOLED panel, larger size, sharpness, and readability indoors, even when brightness has limits.

Display quality is one of the strongest areas, with the AMOLED panel repeatedly praised for sharpness, vibrancy, responsiveness, and value at the price.

Durability evidence is limited but mixed: one reviewer noticed an early screen scratch, while another found the body and screen held up after daily use and a drop.

Durability impressions are mixed: several reviewers saw no scratches or damage, while others questioned scratch resistance, wall-slam resilience, or glass protection.

ECG is not supported, and reviewers position it among the advanced health features missing at this price.

Fit is a weakness for smaller wrists in the available evidence, with reviewers noting poor fit or the watch being too large.

Fit is generally positive, with the round case described as a good middle size for many wrists, though not every reviewer preferred the shape.

Fitness tracking accuracy is acceptable for casual use in some reviews but unreliable in others, especially for sleep-related confidence, workouts, running, and weightlifting.

Fitness tracking accuracy is highly mixed, ranging from surprisingly close workout distances to poor health and workout tracking in stricter tests.

GPS is generally praised after the upgrade to dual-band tracking, with fast lock times and strong route accuracy, though one scientific reviewer questioned recording frequency.

GPS is included, but reviewers repeatedly mention slow lock-on; accuracy after lock ranges from rough to good depending on conditions and reviewer.

Reviewers describe the health suite as broad for the price, with heart rate, sleep, stress and blood oxygen options, but accuracy and depth are inconsistent across tests.

General health tracking accuracy is one of the weaker areas, with several reviewers warning that sensor data can be inaccurate or unreliable.

Heart rate accuracy is one of the most divided areas: some reviewers saw close agreement with reference devices, while others found misses during runs, workouts, or loose wear.

Heart-rate accuracy is inconsistent across reviews, from close comparisons with oximeters, Garmin, or Whoop to serious misses during intervals and workouts.

LTE or standalone cellular connectivity is absent, keeping the watch dependent on a paired phone for connected features.

Materials are mixed, with metal or aluminum elements helping the watch feel better than expected, but plastic backs, bezels, and sensor areas reduce the premium feel.

Materials are better than expected for the price in some reviews thanks to aluminum, but the watch can still feel cheap or plastic-like to others.

Menu navigation is straightforward and crown-assisted, though some reviewers note the interface does not fully exploit the crown or gestures.

Menu navigation is mostly simple and smooth through swipes and the crown, though the crown does not control every screen.

Music controls are useful for phone playback, including album artwork in one review, but the watch is not presented as a standalone music device.

Music controls are available for phone playback and often work well, but there is no standalone music experience.

Onboard music storage is absent, limiting the watch for phone-free exercise with wireless earbuds.

Onboard music storage is absent, so users cannot store music or pair audio devices directly to the watch for phone-free listening.

The operating system experience is repeatedly described as polished, smooth, and quality-feeling for the price.

The proprietary operating system has a distinctive CMF/Nothing style and good battery benefits, but it remains basic compared with Wear OS or watchOS.

Outdoor visibility is a recurring weakness, especially with the always-on display, direct sunlight, or polarized sunglasses.

Outdoor visibility is context-dependent: the main display can be readable, but AOD, direct sun, and auto-brightness behavior drew repeated complaints.

Pairing reliability is mixed: some reviewers found setup or phone switching easy, while others had a difficult pairing process or disconnections from the app.

Pairing is often easy and quick, but some reviewers experienced syncing or reconnection issues after initial setup.

Recovery insights show up as estimated recovery time, VO2 max, training load, and recovery metrics, giving runners and casual athletes more guidance than expected at this price.

Recovery and training insights are unusually ambitious for the price, but they are light and not as deep as premium health platforms.

Reliability is mixed, with reviewers citing notification sync issues, app optimization problems, app disconnects, and work-in-progress software behavior.

Reliability is uneven, with good battery and smooth basic use offset by quirks around wake gestures, timers, disconnects, syncing, and notifications.

Safety features are basic, limited mostly to health alerts such as abnormal heart rate or blood oxygen, while reviewers also note missing watch security.

Size options are limited to one case size, which reviewers repeatedly flag as a problem for smaller wrists.

Sleep tracking ranges from impressive duration or comparative results to very poor awake detection, so reviewers do not agree that it is dependable for serious sleep analysis.

Sleep tracking accuracy is sharply divided, with some reviewers seeing good sleep/wake times and others finding stages, awake periods, and totals unreliable.

Notifications are useful for quick wrist checks and preset replies, but syncing and clearing behavior can be one-way or limited depending on phone platform.

Notifications are useful for basic triage, but interaction is limited and several reviewers report delayed, unreliable, or clumsy notification behavior.

Smartwatch features cover basics such as notifications, camera shutter, calls, recorder, weather, music control, calendar, assistant access, and news, but not advanced platform features.

Smartwatch features cover basics like calls, notifications, weather, alarms, reminders, and tools, but the overall experience is closer to a smart fitness watch.

Software smoothness is generally strong, with several reviewers praising fluid animations and scrolling, but one negative review saw lag and another saw small pauses.

Software smoothness is mixed: many reviewers call it snappy or improved, while others encountered lag, bugs, or delayed actions.

Step-counting evidence is limited and mixed, with one reviewer seeing a sizeable difference between the watch and Google Fit by the end of the day.

Step counting is adequate for rough daily activity in some reviews but not consistently precise against other trackers.

Stress tracking and guided breathing are repeatedly mentioned, but at least one long-term reviewer found stress readings temperamental and not reflective of real stress.

Stress tracking is present and sometimes aligns with reference wearables, but reviewers also describe it as not very helpful or inaccurate.

Style and design are among the most praised areas, although a few reviewers dislike the plasticky or average feel.

Style and design are among the watch's clearest wins, with reviewers repeatedly praising the distinctive round look, colors, and modular bezel concept.

Third-party app support is weak because reviewers repeatedly note that apps cannot be installed or accessed like on fuller smartwatch platforms.

Third-party app support is very limited: there is no app store, no downloadable watch apps, and no third-party watch faces.

Touchscreen responsiveness is mixed: some reviewers praise smoothness while others report lag, missed swipes, or always-on behavior that does not work as expected.

Touchscreen responsiveness is generally good, with reviewers using it to compensate for limited physical buttons and praising the display responsiveness.

The user interface earns praise for being clean, polished, readable, and visually appealing, especially with Nothing's minimal monochrome style.

The user interface is simple, stylish, and easy to learn, though several reviewers note it remains basic and sometimes optimized imperfectly for a round screen.

Value for money is strong overall because many reviewers find the design, display, battery, GPS, and basics impressive for around $99, despite harsher dissent.

Value for money is the dominant positive, with reviewers repeatedly balancing the $69 price against compromises in smarts, tracking, and reliability.

Voice assistant support is useful when it triggers Siri, Gemini, or ChatGPT through a compatible phone, but ChatGPT support is limited and inconsistent across phones.

The voice assistant is phone-relayed rather than native, and reviewers often describe it as limited, gimmicky, or unreliable.

Watch faces are a standout design strength, with many reviewers praising the quantity, style, AOD support, and creative video or AI face options.

Watch faces are plentiful and stylistically distinctive, but reviewers criticize storage limits, branding, customization depth, and AOD mismatch.

Water resistance is a major caveat: ratings are mentioned repeatedly, but reviewers stress that swimming, pools, oceans, or showers are not recommended.

Water resistance is IP68, which covers splashes and immersion claims, but multiple reviewers warn it lacks swimming-grade protection or 5ATM support.

Wellness insights are shallow compared with the raw metrics: reviewers wanted more written explanations or practical advice from sleep and health data.

Wellness insights are shallow: the watch records basic metrics, but reviewers repeatedly say it lacks deeper scores, trends, or actionable interpretation.

Wi-Fi is not available according to the reviewer evidence, which limits independent connectivity.

Wi-Fi is not included, reinforcing the watch's dependence on Bluetooth and a paired phone.

Workout variety is a major strength: reviewers consistently note the huge list of sports modes, often around 131 options, covering mainstream and niche activities.

Workout variety is strong for the price, with reviewers repeatedly citing roughly 120 sport modes and multiple auto-recognized activities.