Compare Apple Watch SE 3 vs CMF Watch 3 Pro

Heart-rate tracking drew strong praise across testing, with reviewers saying it aligned well with comparison devices and remained usable even in harder workouts.

Heart-rate accuracy ranged from surprisingly good in cycling and casual checks to inconsistent during running, lifting, or loose-wrist scenarios.

GPS accuracy was mostly praised for everyday workouts, though reviewers noted single-band GPS can wander in dense urban or more challenging environments.

GPS was usually praised for quick locks and strong route accuracy, but one scientific reviewer flagged low recording frequency and possible distance issues.

Fitness tracking accuracy was a clear strength, with reviewers reporting reliable workout, activity, and comparison-test results for the price.

Fitness tracking accuracy was acceptable for casual users in several reviews but not reliable enough for serious sports tracking in others.

Sleep tracking was generally useful and often accurate enough, though several reviewers felt Apple’s Sleep Score was simpler than competing systems.

Sleep tracking was sharply split, with some reviewers finding duration or bed comparisons close, while others found awake detection and stages poor.

Workout Buddy and coaching features were appreciated as helpful motivation, though reviewers often described them as basic, repetitive, or hit-or-miss.

Coaching features were generally liked, especially the running coach, though one reviewer found the AI plan setup flawed for beginners.

Recovery-related evidence was limited, but one fitness-focused review valued training-load tracking as a way to monitor workout volume over time.

Recovery insights were useful where reviewers discussed recovery time, training load, VO2 max, and planning the next workout.

Workout variety was viewed very positively, with reviewers noting broad sport profiles and nearly the same workout options as pricier Apple Watches.

Workout variety was a standout strength, with repeated praise for the very large list of sports and niche activity modes.

Blood oxygen tracking was consistently treated as a missing premium health feature, with reviewers noting it remains reserved for higher-end Apple Watches.

Blood oxygen readings were limited in the review evidence but positive where compared directly, with one user finding pulse-ox results very close to a finger oximeter.

Wellness insights were considered helpful for beginners or casual users, especially Sleep Score, sleep apnea alerts, and the Vitals-style health context.

Wellness insights were a weak area because sleep and health data often lacked written guidance or actionable interpretation for beginners.

Reviewers described the core health basics as adequate or mostly complete, especially heart-rate alerts and general tracking, while noting that advanced sensors remain absent.

Overall health tracking was judged good enough for casual use by some reviewers but unreliable or still quirky by others, especially in harder testing.

Calorie tracking appeared as part of the useful core fitness toolkit, with one test finding calorie and distance figures matched a comparison watch exactly.

Calorie and workout metric usefulness was positive where discussed, with reviewers finding the post-workout data detailed enough for casual needs.

Comfort was a consistent strength, especially for sleep, smaller wrists, and unobtrusive daily wear.

Comfort was generally strong because the watch is light for its size, though some reviewers disliked its presence or bulk.

Materials quality evidence was limited but positive, centered on the aluminum case, rounded body, and premium-looking construction.

Materials quality was mixed: several reviewers noted plasticky or budget construction, while others felt the overall finish seemed more premium than expected.

Band quality evidence was limited but very positive, with praise for easily replaceable Apple Watch bands.

Band impressions ranged from soft and comfortable to cheap-feeling or irritating, making strap quality highly reviewer-dependent despite easy 22mm replacement options.

Fit evidence was limited and mixed, with one reviewer saying the older body did not sit as flush as the Series 11.

Fit was criticized by one reviewer whose 6.5-inch wrist made the strap and lug proportions feel poor.

Water resistance was considered adequate for common needs, with several reviewers accepting the 50m/swimproof rating.

Water resistance was a major tradeoff: IP68 earned praise, but the lack of swimming or shower confidence was repeatedly criticized.

Style and design were the main aesthetic tradeoff: reviewers liked the familiar Apple Watch look but repeatedly called it dated or bezel-heavy.

Design was the most divisive but often strongest attribute: many praised the stylish CMF look, while a few found it average, cheap, or too flashy.

Size options were viewed positively for offering 40mm and 44mm choices, especially for smaller wrists.

The single large size was a recurring caveat, with reviewers warning that smaller wrists may find it too big despite the readable display.

Durability was mixed: stronger Ion-X glass drew praise, but some reviewers noted weaker dust/scratch protection or actual scratching.

Durability evidence was mixed, with one long-term user reporting a drop and clean finish, while others saw early scratching risks or softer glass concerns.

Build quality was considered solid for the price, with reviewers calling it well made and modern enough despite the older design.

Build quality was polarizing, with some reviewers calling it impressive for the price and others criticizing cheap plastics, rattles, or a non-premium back.

Battery life was the main practical compromise, ranging from excellent in some tests to daily-charge frustration in others.

Battery life was one of the clearest strengths, often lasting several days to more than a week, though always-on display use reduced results sharply for some reviewers.

Charging convenience was mixed because faster top-ups help, but sleep tracking still forces many users into a daily charging routine.

Charging convenience was a consistent weakness because the proprietary magnetic connector was repeatedly described as flimsy or easy to knock loose.

Charging speed improved substantially over the SE 2 and was usually praised, even when still slower than pricier Apple Watches.

Charging speed was generally acceptable at around 90 minutes with useful top-ups, though not every reviewer called it fast.

Display quality was a major upgrade thanks to always-on functionality, though reviewers still noted smaller bezels and lower specs than Series models.

Display quality was usually praised for its larger AMOLED panel and readable UI, though some reviewers still called it only average or limited by brightness.

Outdoor visibility was generally serviceable, but direct sunlight remained a repeated display limitation.

Outdoor visibility was one of the most repeated complaints, especially for direct sunlight, always-on mode, and polarized sunglasses.

Brightness was usually adequate and sometimes praised, but reviewers acknowledged it is below the brighter Series and Ultra screens.

Brightness split reviewers: some found it acceptable even outdoors, while others said the screen or auto-brightness felt too dim by 2025 standards.

Reliability evidence was limited but positive, with one reviewer concluding the SE 3 has what most users need.

Reliability evidence was limited but negative where tested, with find-my-phone behavior described as hit-or-miss.

Value for money was the strongest consensus attribute, with reviewers repeatedly calling the SE 3 a standout bargain or best-value Apple Watch.

Value for money was the strongest consensus point; even critical reviewers acknowledged the low price, though some argued better alternatives justify spending more.

The app ecosystem was one of the SE 3’s strongest advantages, repeatedly described as unmatched or far richer than competing budget watches.

Reviewers generally saw the app ecosystem as limited, especially without direct Strava-style app access or richer smartwatch apps, though some accepted the tradeoff at the price.

Third-party app support was praised for extending the native experience, with reviewers highlighting Apple’s App Store depth and useful fitness apps.

Third-party app support was weak because there is no true app store or direct third-party app access, though one reviewer liked the distraction-free limitation.

Apple Pay was positively mentioned as part of the compelling smartwatch feature set and deep Apple ecosystem integration.

Contactless payments were a clear limitation because NFC is absent, though one reviewer said it was not a big issue for their own use.

Touchscreen responsiveness had limited but very positive evidence, with PCMag saying the watch responded promptly and consistently.

Touchscreen responsiveness had limited evidence, with one reviewer noting occasional missed swipes despite otherwise smooth performance.

On-device Siri was broadly seen as a useful upgrade, making commands faster and more practical for workouts, timers, weather, and health questions.

Voice assistant quality depended heavily on phone ecosystem, working for basic Siri/Gemini access but disappointing reviewers who expected broader ChatGPT support.

Pairing/setup evidence was limited but positive, with one review calling setup quick and easy.

Pairing reliability ranged from very easy phone switching to frustrating setup, app disconnects, or historical pairing problems.

Reviewers generally agreed the SE 3 delivers the core Apple Watch experience, making it feel much less like a compromised budget model.

Smartwatch features were adequate for the basics and impressive for the price, but reviewers consistently described them as scaled back versus fuller platforms.

Notification handling was a major everyday strength, with reviewers praising call, text, and response convenience from the wrist.

Notification handling was mixed: quick access and replies were useful, but syncing, language support, and clearing behavior frustrated some reviewers.

Call handling was rated highly where tested, especially voice isolation and gesture-based call management.

Call handling was mostly positive for basic calls, with clear speaker or microphone results indoors, but not every reviewer found it strong outdoors.

Menu navigation evidence was limited but positive, with one reviewer describing the basic home-screen and control flow as simple.

Menu navigation was mostly pleasant, especially through the crown and simple swipes, but one reviewer said the interface underused the crown.

Software smoothness was one of the most consistent strengths, with reviewers praising the S10 chip for snappy menus, fast apps, and fluid navigation.

Software smoothness was often excellent, with many reviewers praising fluid animation and snappy UI, though a few saw lag or pauses.

Customization was useful through watch faces, workout views, and settings, but limited by the lack of third-party watch faces.

Customization was mixed: watch faces, gestures, widgets, and shortcuts pleased reviewers, but losing swappable bezels and limited widget controls hurt.

watchOS experience received very strong marks for polish, smoothness, and making the SE 3 feel similar to pricier Apple Watches.

The proprietary operating system was praised as polished and refined for the price.

Button and gesture controls were widely praised, especially Double Tap, Wrist Flick, the Digital Crown, and side-button shortcuts.

The crown and button controls were often praised for tactility and haptics, though a few reviewers wanted better sizing or deeper integration in the interface.

The companion app setup drew a mixed note because managing Watch, Health, and Fitness across multiple iPhone apps can feel tedious.

The Nothing X companion app drew mixed reactions, from cleaner and easier to read to too basic, typo-prone, battery-draining, or missing workout records.

Watch faces were viewed positively, especially the always-on versions and Apple’s high-quality built-in choices.

Watch faces were one of the most praised parts of the watch, though some reviewers disliked ordinary designs, storage limits, or download failures.

Music controls and speaker/media features were useful additions, though reviewers were split on how often they would actually use playback from the watch speaker.

Music controls were basic but useful, with reviewers appreciating phone playback control and album artwork.

The user interface was praised as easy, cohesive, and fluid, with gestures and Smart Stack improving quick interactions.

The user interface was widely praised for clarity, clean visuals, and ease of use.

Cross-platform compatibility was a clear limitation because the SE 3 remains an iPhone-only smartwatch.

Cross-platform compatibility was generally a plus for Android and iOS basics, but some features such as quick replies or ChatGPT were ecosystem-limited.

Auto-detection was useful but not flawless; reviewers found it adequate for walks and workouts, while one later review said it still lagged rivals.

Auto-detection was useful in one account but inconsistent across reviewers, with one long-term user warning that activities often needed to be started manually.

Bluetooth stability was mostly positive once connected, but one reviewer criticized the broader connectivity set as limited compared with fuller smartwatch platforms.

Navigation evidence was limited but positive, with offline Apple Maps presented as helpful when away from the phone.

Onboard music storage was treated negatively because the watch needs a paired phone and cannot act as a standalone music device.

Voice notes and transcription were praised as useful and functional by reviewers who tested them, although one reviewer questioned the feature’s broader purpose.

Wi-Fi was only discussed as a missing connectivity option, and that absence was framed as part of the watch’s limited standalone capability.

ECG was the most repeated missing health feature, often framed as the main reason some higher-risk buyers might step up to the Series line.

Cellular connectivity was viewed as a useful option, with 5G improving coverage, efficiency, and phone-free use for calls, messages, and downloads.

Safety features were strongly praised, especially fall detection, crash detection, emergency features, and real family anecdotes.

Score tracking had limited positive evidence, with activity and training scores described as more than sufficient for one reviewer’s needs.

Step counting had limited but mixed evidence, with one reviewer reporting a wide variance and another finding it close enough against a Garmin comparison.

Stress tracking had mixed evidence: one reviewer liked guided breathing, while another found stress readings unreliable during a real stress episode.