Compare CMF Watch Pro 2 vs Samsung Galaxy Watch Ultra (2025)

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

Workout auto-detection is broadly useful, with reviewers citing automatic workout detection and reliable walk detection, though manual starts remain better for some activities.

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

The app ecosystem is a strength: reviewers mention many available apps, Google Play access, and expanded usefulness from the extra storage.

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

Band feedback is mostly positive for comfort, stability, and easy removal, though one reviewer noted dirt collecting in the strap holes.

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

Battery life is one of the clearest strengths, often described as the best in Samsung’s lineup, though heavy GPS or always-on use can reduce 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.

Blood oxygen tracking is present across the health sensor set, but one long-term reviewer found SpO2 readings routinely low.

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

Bluetooth support is present, including Bluetooth 5.3 mentions, but external sensor connections were criticized or described as unavailable.

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

Brightness earns strong praise, with reviewers citing high nits, bright AMOLED output, and easy readability.

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.

Build quality is consistently praised through the rugged titanium case, durable chassis, and robust construction.

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

Button controls are mixed: reviewers like the Quick/action button and programmable shortcuts, but one long-term reviewer disliked accidental presses and limited workout button behavior.

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

Call handling is supported through Bluetooth calling, speaker/mic use, and smartwatch features for calls and texts.

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.

Calorie tracking is included as part of the activity metrics, but the evidence is limited to feature availability rather than deep accuracy testing.

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

Charging is wireless and reasonably convenient, but one reviewer criticized the missing wall charging block.

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

Charging speed gets limited but positive evidence, with one review reporting a full charge in about 95 minutes.

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

Coaching features are a real addition, especially Running Coach, with reviewers describing personalized plans and guidance.

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.

Comfort depends on wrist and expectations: some reviewers found it comfortable, while others felt the weight or bulk.

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.

The companion app setup is useful but split, with health and smartwatch settings divided between Samsung Health and Galaxy Wearable.

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

Contactless payments are supported through Samsung Wallet or Samsung Pay shortcuts.

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

Cross-platform compatibility is limited: reviews say it works with Android but not iPhone, with the best experience tied to Samsung phones.

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

Customization is strong across programmable buttons, widgets, tiles, colors, and watch-face data.

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

Display quality is a major strength, with repeated praise for the large, vibrant AMOLED display.

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

Durability is a standout, backed by titanium construction, MIL-STD claims, scratch protection, and reviewer reports of little damage.

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

ECG functionality is widely listed as part of the health feature set, though one review notes Samsung-phone pairing requirements for ECG and blood pressure.

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

Fit is polarizing: it can fit some larger wrists well, but reviewers also note the single 47mm size and large wrist footprint.

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

Fitness tracking accuracy is generally good for everyday and running use, though scientific testing places it below the top alternatives.

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

GPS accuracy is good in several reviewer tests and supports dual-frequency GPS, but scientific testing found some route deviation.

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

Health tracking is feature-rich but mixed in accuracy, with strong sensor coverage offset by questionable antioxidant, HRV, and some sleep-stage findings.

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

Heart-rate accuracy is strongest in running evidence, with one reviewer matching a Polar strap closely, while scientific testing calls it good rather than elite.

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

LTE is a consistent advantage because it is standard or broadly available, though one reviewer notes carrier setup can cost extra.

Navigation support is useful through offline maps, Google Maps routing, and GPS widgets, but one reviewer notes no built-in maps on-watch.

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.

Materials quality is strong, centered on titanium, sapphire/robust design references, and corrosion-resistant claims.

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

Menu navigation is mostly straightforward through swipes, app drawers, digital bezel haptics, and simple operation.

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

Music features are useful for downloaded Spotify, streaming, media tiles, and larger storage for music.

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

Onboard storage is a clear 2025 upgrade, repeatedly described as 64GB and useful for music, apps, and offline maps.

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

The operating system experience benefits from One UI 8/Wear OS updates, Gemini, Now Bar, and refreshed interface features.

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

Outdoor visibility is excellent, with multiple reviewers saying the bright display remains readable in sunlight.

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

Pairing and setup reliability are positive where tested, with instant recognition and quick setup noted.

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

Recovery-style insights are mixed: vascular load interests some reviewers, while HRV and related metrics draw skepticism.

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

Reliability is mostly acceptable but not flawless, with one review noting brief display interruptions and another calling performance not horrible rather than perfect.

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

Safety features include fall detection, emergency siren references, sleep apnea alerts, and related health/safety setup options.

Size options are limited by the single large 47mm format, though the band can fit a range of wrists and the screen size appeals to some users.

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

Sleep tracking is useful and improving, but reviewers disagree on sleep stages and awake-time accuracy.

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

Smartphone notifications are well supported, with reviewers noting detailed notification views and suggested replies.

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

Smartwatch features are broad, including LTE, calls, texts, Gemini, Now Bar, storage, and Samsung’s full watch software stack.

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

Software smoothness is generally good, with smooth app launches and more functional One UI behavior, despite occasional reliability caveats.

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

Step counting is positive in basic walking tests, but one reviewer notes accuracy drops when arms are not swinging.

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

Stress tracking is included in Samsung’s health sensor set, though the reviews provide feature evidence more than accuracy testing.

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

Style is divisive: some reviewers like the rugged, colorful, stylish look, while others find it bulky or not pretty.

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

Third-party app support is solid through Google Play, fitness apps such as Strava and Map My Run, and a growing Wear OS app selection.

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

Touchscreen responsiveness and gesture operation are described as intentional and straightforward in the long-term review evidence.

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.

The user interface is improved and functional, though some reviewers dislike parts of the visual layout.

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

Value for money is the main weak point because reviewers repeatedly question the high price and minimal 2025 hardware changes.

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

Voice assistant quality is a strength with Gemini, which reviewers describe as convenient, useful, and directly available on the wrist.

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

Watch faces are a strength, with reviewers praising quantity, customization, and Samsung’s polished face designs.

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

Water resistance is a strong feature, with reviews citing 5ATM/10ATM ratings, IP68 claims, and pool/rain/snow use.

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

Wellness insights are useful but uneven: sleep coaching and vascular load get interest, while energy score and antioxidant index receive skepticism.

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

Wi-Fi support is present across connectivity mentions, including LTE/Wi-Fi model references.

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

Workout variety is strong, with reviewers citing many tracked activities, multisport/triathlon capability, and broad exercise lists.