Compare CMF Watch 3 Pro vs Garmin Approach S50

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 evidence is strongest around golf-shot detection, score prompts, and Move IQ-style automatic activity interpretation.

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 Garmin ecosystem is a strength, especially app syncing, accessory support, Garmin Golf membership upgrades, club sensors, and cross-device benefits.

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

Band quality is polarizing: several reviewers liked the lightweight nylon ComfortFit band, while others found it fiddly, sweaty, or less premium.

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 strong overall, with multi-day to near-week-long use reported, but it remains below the S70's rated endurance.

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 through Pulse Ox, with reviewers noting both the sensor and sleep/on-demand measurement behavior.

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

Bluetooth connectivity is useful for accessories, especially rangefinder yardages and connected golf hardware.

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

Brightness is generally praised, but one Florida-sun review found smaller text could be hard to read in direct sunlight.

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 generally positive for slimness and lightness, but one reviewer felt the S50 was somewhat plasticky versus pricier models.

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

Button controls are functional with two side buttons, but several reviewers preferred the extra physical controls on higher-end Garmin watches.

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.

Call handling is basic: reviewers found phone-call notifications and answer/reject controls, but no full calling experience from the watch.

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 is available as part of the daily health metrics, but reviewers mostly mentioned it as a tracked stat rather than deeply evaluating its usefulness.

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

Charging convenience is mixed: the cable is familiar for Garmin users, but proprietary charging was criticized as inconvenient for trips.

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 has limited evidence, but one reviewer said the initial charge only took a few hours.

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 features include Garmin coaching, meditation or breathing prompts, sleep coach, and training-program support, though they are secondary to the golf feature set.

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 one of the S50's standout strengths thanks to its lightweight, low-profile design, though the nylon strap can feel less comfortable when sweaty.

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 experience is positive, with reviewers citing Garmin Golf setup, connectivity, and flawless syncing after pairing.

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

Contactless payments are supported through Garmin Pay/NFC, but reviewer evidence points to limited bank compatibility in the UK.

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 mixed: the S50 works with iPhone and Apple users, but reviewers found Garmin's iPhone experience less flexible than Apple Watch integration.

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 strong for golf settings, data screens, flag position, watch upgrades, and optional feature toggles.

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

Display quality is a major strength, with repeated praise for the AMOLED/OLED screen, crispness, color, and modern look.

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 evidence is limited but positive, centered on the Corning Gorilla Glass 3 lens.

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

Fit is strong for many wrists due to the low profile and adjustable fabric strap, though some reviewers questioned larger-wrist suitability.

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 more mixed: reviewers liked the broad activity tracking and stats, but one noted the S50 cannot track elevation as accurately as the S70.

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 accuracy was one of the strongest points, with reviewers reporting quick satellite lock, reliable course selection, and yardages within a few yards of a laser rangefinder.

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.

Reviewers treated the S50 as a credible health tracker, especially through body battery, HRV, blood oxygen, sleep, and daily activity insights, though the evidence is stronger on feature coverage than lab-level validation.

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 tracking was repeatedly cited as the key hardware difference that unlocks the S50's health and fitness value, with one reviewer noting it uses Garmin's older Gen 4 sensor.

Mapping and navigation are core strengths for yardages, hazards, green views, PinPointer, and course data, but fuller maps and green contours often require Garmin's paid membership.

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 mixed-to-good, with Gorilla Glass and aluminum noted positively while the lightweight body drew a plasticky caveat.

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 straightforward once learned, though one reviewer found the golf features a bit complicated at first.

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 present and useful, including phone music control and a music-controller feature in the watch interface.

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

Onboard music storage is available, but storage is modest compared with the S70 and one review specifically called out the 4 GB limit.

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

The operating-system experience is familiar and Garmin-consistent, but reviewers still saw some iPhone-related limitations.

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

Outdoor visibility is mostly strong thanks to the bright AMOLED screen and big-number options, but direct sun can make fine details harder to see.

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 reliability is a strength, with reviewers describing Garmin Golf app pairing as simple, seamless, and reliable after 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 insights were supported by body battery, sleep-recovery feedback, and post-exercise recovery guidance, making this one of the stronger wellness features.

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

Reliability is strong, with reviewers saying Garmin golf watches simply work, though one review mentioned a reduced GPS-signal course issue.

Safety features are present through LiveTrack and fall/emergency-contact settings, but they were covered mainly in a feature walkthrough.

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

Size options are limited compared with the S70, and reviewers repeatedly flagged that the S50 may feel small for larger 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 drew strong praise across reviews, with reviewers highlighting detailed scoring, sleep coach features, and comfort for overnight wear.

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.

Smartphone notifications are useful for triage and can be muted in golf mode, but reviewers noted limited iPhone notification controls and limited actionability from the watch.

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 are solid for a golf-focused device, adding alarms, timers, health metrics, notifications, weather, calendar, and broader daily-use tools.

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 scored well based on seamless Garmin app pairing and the reviewer's statement that it works flawlessly after initial setup.

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.

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 appeared consistently as part of the S50's wellness package, often tied to body battery, sleep, and heart-rate-based insights.

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

Style and design are widely praised, with reviewers calling the S50 sleek, lightweight, understated, and better looking than bulkier alternatives.

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 limited and mixed, with restrictions around iPhone app notifications but some music-provider support.

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 a repeated strength, with reviewers calling the screen responsive, intuitive, and central to navigation.

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

The interface is generally intuitive, with reviewers praising the touchscreen, simple golf start flow, and easy feature-to-feature movement.

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 depends on buyer priorities: reviewers liked the golf-plus-health package, but subscription-locked maps and the cheaper S44 created meaningful tradeoffs.

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.

Voice assistant support is weak, with the reviewer specifically noting that Siri-style talking from the watch is not available.

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

Watch-face quality is decent with many selectable faces, though the S70 was described as having better customization options.

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

Water-related evidence is indirect: reviewers discussed swimming and shower use, but mainly as a nylon-band drying consideration.

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 a major strength, especially body battery, sleep, stress, respiration, recovery, and health snapshots that make the watch useful off the course.

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

Wi-Fi support is present for updates, though reviewer evidence is limited to feature walkthrough coverage.

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 broad for a golf watch, with support called out for runs, rides, swims, gym sessions, and other sports, though reviewers still framed it below higher-end Garmin fitness watches.