Compare Suunto Race S vs Samsung Galaxy Watch Ultra (2025)

Activity auto-detection is weak in the available evidence, with one review saying not to expect auto exercise detection.

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 app ecosystem is strong for routes, TrainingPeaks-style workflows and SuuntoPlus-style extensions.

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

Band quality is mostly positive for comfort and fastening, with some concerns about stickiness or discoloration.

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

Battery life is strong for an AMOLED sports watch, though real-world daily use can fall below the largest headline claims.

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 is present, but evidence is thin and one reviewer called overnight SpO2 readings unreliable.

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

Bluetooth works for sensors and notifications, but reviewers noted sensor-management limits and pairing compromises.

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

Brightness is consistently praised, especially for the AMOLED screen and route-following visibility.

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

Build quality is praised as premium for the price, including strong comments on watch and strap construction.

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

Button controls are mixed: the physical layout helps, but the crown is repeatedly described as tricky or awkward.

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.

Call handling is limited to alerts rather than true calling, matching the watch’s training-first focus.

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

Calorie tracking is mentioned as part of basic workout feedback, but reviewer evidence is limited.

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

Charging convenience is mixed: speed helps, but the proprietary cradle and alignment requirements can be inconvenient.

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

Charging speed is a strength, with several reviewers reporting roughly 40 minutes to an hour or rapid top-ups.

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

Coaching is mixed: structured workouts and climb guidance help, but reviewers missed richer training plans or daily suggested workouts.

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

Comfort is generally positive, especially for daily wear, though some found sleep wear or bulk less ideal.

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

The companion app is a standout for routes, maps and clean design, though a few reviewers wanted a more intuitive experience.

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

Contactless payments are absent, making this a clear weakness for users who rely on wrist payments.

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

Cross-platform phone support is solid, with explicit evidence for both Android and Apple compatibility.

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

Customization is strong across watch faces, widgets, map layers and personalized sport modes.

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

Display quality is a major strength, with AMOLED sharpness, color and resolution praised across reviews.

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

Durability is generally solid, but the switch from sapphire to Gorilla Glass and 50m rating creates some caveats.

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

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 a strength for smaller wrists and active use, with secure strap fit and reduced case size praised.

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

Fitness tracking is generally competent for workouts, but wrist-HR weaknesses affect confidence in some activities.

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

GPS accuracy is one of the strongest consensus positives, with reviewers praising precise tracks across runs, rides, trails and mapping use.

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

Health tracking is usable for HRV-style context, but reviewers flagged weak sleep-stage reliability and inconsistent body-resource style metrics.

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 the clearest split: some reviewers saw improved or precise running/swim data, while many still recommended a chest strap.

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 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 quality is good for the price, with steel, titanium and Gorilla Glass mentioned, though the plastic body and non-sapphire lens are tradeoffs.

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

Menu navigation takes practice; reviewers described the logic as initially confusing despite short navigation paths once learned.

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

Music control from a phone works across reviews, but it is not the same as phone-free playback.

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

Onboard music storage is a repeated limitation, with several reviewers saying there is no real music storage or streaming support.

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

The operating system feels simpler and more focused than Garmin, with reviewers noting improved organization and responsiveness.

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

Outdoor visibility is excellent, with reviewers reporting easy readability in sun, shade and outdoor workouts.

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

Pairing is easy for the phone and external HR monitors, but multi-sensor management is a notable limitation.

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

Recovery insights are a real part of the platform, using HRV, sleep and training load, though presentation varies by reviewer.

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

Reliability is strong where tested long-term, with no GPS drops, data loss or signal dropouts reported by key reviewers.

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 center on Find Back, offline maps, route guidance and battery reminders, all useful for outdoor use.

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

Size options improve wearability versus the larger Race, with reviewers praising the smaller 45mm format.

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 drew repeated caveats, from underreported sleep and night comfort issues to poor sleep-stage confidence.

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

Smartphone notifications work for basic mirroring, though some reviewers found presentation limited.

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

Smartwatch features are intentionally basic: notifications, music control and widgets are present, but advanced smartwatch tools are limited.

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

Software smoothness is improved over earlier Suunto experiences, though one review still noted minor lag.

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

Step counting is mixed: one reviewer found totals similar to Garmin, while another saw substantial undercounting.

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

Stress tracking appears mainly through training-stress metrics, with reviewers noting Training Stress Score and Training Stress Balance displays.

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

Style and design are standout positives, with reviewers repeatedly calling the watch sleek, premium or great-looking.

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

Third-party support is useful through SuuntoPlus and connected services, but on-watch app limits hold it back.

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 mostly good or improved, with some caveats around ultimate slickness and moisture sensitivity.

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

The user interface is functional but divisive, with comments ranging from easy to find features to less intuitive than rivals.

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

Value for money is one of the strongest agreements, with reviewers repeatedly calling the feature set unusually strong for the price.

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

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

Watch faces are customizable and improved, though at least one reviewer still wanted third-party watch faces.

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

Water resistance is adequate for swimming and normal use, but it is lower than the larger Race.

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

Wellness insights exist and can be helpful, but they stay relatively low-key and are not always as persuasive as Garmin-style metrics.

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

Wi-Fi is mainly useful for map downloads and syncing map regions, with the process often tied to the app and charger.

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

Workout variety is a major strength, with reviewers repeatedly citing broad sport modes, triathlon support and multisport coverage.

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