Compare CMF Watch 3 Pro vs Suunto Vertical 2

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.

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.

The app ecosystem was a weakness relative to Garmin, with reviewers calling out a lack of deeper training ecosystem or rich smart features.

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

Band quality was mostly positive for softness and security, though reviewers also noted fiddly clasps, stiffness, or awkward break-in.

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.

Battery life was the strongest point of agreement: reviewers repeatedly called it class-leading or excellent for AMOLED, with a few real-world caveats versus claims.

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.

Blood oxygen evidence was limited but positive, tied to a redesigned sensor that improved stability during demanding outdoor use.

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

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

Brightness was strongly praised, with reviewers emphasizing the 2,000-nit output and easy readability in bright conditions.

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

Build quality was repeatedly described as intentional, solid, tank-like, and suited to hard outdoor use.

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.

Button controls were broadly praised for glove use and tactile feedback, though some reviewers still preferred a crown or different interface logic.

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

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

Calorie estimates were questioned by one reviewer, who said the watch tended to overestimate calories burned.

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

Charging convenience was a major improvement, with reviewers praising the stronger magnetic charger, better clip, and reliable connection.

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

Charging speed was acceptable rather than impressive, with one reviewer calling the roughly 90-minute charge adequate but not great.

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

Coaching features were useful for structured progress, though one advanced pacing feature was less convenient because it required a chest strap.

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

Comfort was mixed: reviewers often found it wearable or balanced for its size, but the heavy, bulky case was a recurring caveat.

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.

Companion app quality was mixed: several reviewers liked its clean, digestible dashboard, but others found it less glanceable, overloaded, or inconsistent in background syncing.

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

Contactless payments were a clear missing feature and one reviewer explicitly docked the product for no tap-to-pay wallet.

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

Cross-platform compatibility had an iPhone caveat, with one reviewer noting reduced notification and response behavior when paired to iOS.

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

Customization was praised for watch-face and data flexibility, with reviewers appreciating how much the display could be tailored.

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.

Display quality was one of the strongest positives, with reviewers repeatedly praising the AMOLED screen as bright, sharp, vibrant, clean, and modern.

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.

Durability evidence was strong, with reviewers reporting protective construction, resistance to scratches, and a solid feel after rough use.

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

Fit was generally secure when adjusted correctly, but reviewers stressed that sensor accuracy and stability depend on placement.

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

Sports tracking was described as solid overall, with accuracy tied to GPS performance and getting the watch fit right.

The flashlight was widely considered useful or even essential, but several reviewers criticized early software behavior, access flow, or clunky controls.

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

GPS accuracy was one of the strongest themes, with reviewers repeatedly calling land-based tracking accurate, rock-solid, spot-on, or near-perfect.

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

Reviewers found the broader health metrics generally usable, with one calling the data accurate enough and another seeing solid performance across navigation, sleep, and heart-rate measurements.

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

Heart-rate accuracy was mixed-positive: many reviewers saw accurate or much-improved readings, while others reported startup wobble, high-intensity drift, fit sensitivity, or inconsistent results.

Mapping and navigation were usually praised for clear, useful offline maps and route guidance, but reviewers noted setup friction, manual toggles, route limits, or Garmin’s easier experience.

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

Materials quality was praised through the metal casing and sapphire-glass construction.

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

Menu navigation was mixed: reviewers liked the clearer flow, but some found the touch-centric interface or long scrolling awkward.

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

Music controls were serviceable to good for phone playback, but reviewers framed them as limited controls rather than a full music experience.

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

Onboard music storage was repeatedly criticized or marked absent, with reviewers noting no offline music despite the available storage.

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

The operating system experience was praised as fast and efficient in the available review evidence.

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

Outdoor visibility was excellent across the evidence, especially in sun, low light, and map use.

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

Pairing and sync reliability was split: one reviewer had no connection or syncing issues, while another found background activity inconsistent.

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

Recovery insights were generally useful, with reviewers saying advice or training-state feedback aligned with how they felt and helped track progress.

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

Reliability evidence was limited but positive, centered on performance data, durability, and route reliability.

Safety features were mixed: the flashlight helped, but one reviewer criticized the lack of a true SOS function.

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

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

Size options were a weakness because one reviewer specifically criticized the single-size approach.

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

Sleep tracking drew mixed feedback: several reviewers found it accurate or improved, but others noted hit-or-miss results, missed wake periods, or quirks.

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

Notification handling was mixed: alerts could arrive reliably, but reviewers repeatedly noted read-only limits, short previews, no images, or reduced iPhone behavior.

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

Smartwatch features were considered limited; reviewers treated the watch as an outdoor tool rather than a full everyday smartwatch.

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

Software smoothness was much improved versus older Suunto models, with reviewers calling the UI faster, smoother, and more responsive.

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

Step counting had a minor accuracy concern, with one reviewer saying the watch frequently overcounted steps.

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

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.

Style and design were praised as rugged, sleek, good-looking, and more refined than earlier models.

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.

Third-party app support was positive where discussed, especially clean syncing with Strava, TrainingPeaks, and health-app workflows.

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

Touchscreen responsiveness was mostly positive, but reviewers noted wet-screen confusion and occasional lag.

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

The user interface was viewed as more intuitive than earlier Suunto releases, though evidence was limited.

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

Value for money was generally positive because the watch delivers strong outdoor performance at less than some Garmin rivals, though some reviewers flagged competition and higher titanium pricing.

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

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

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

Watch-face quality was generally liked, especially the clear default face and useful data, though one review noted dim-state readability issues elsewhere.

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

Water resistance evidence was positive but limited, with one reviewer calling it fully waterproof and happy in the pool.

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

Wellness insights were seen as meaningful but fairly lean, especially the Resources-style daily energy framing.

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

Wi-Fi connectivity was mainly discussed through map downloads, where reviewers ran into a fiddly process or setup failures.

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

Workout variety was a clear strength, with reviewers repeatedly praising the very broad set of sport modes and activity profiles.