Compare Polar Grit X2 Pro vs Suunto Race S

Reviewers found the app/platform ecosystem thin, with no proper ecosystem and limited app integration compared with rivals.

The app ecosystem was praised for useful SuuntoPlus tools, though one review said Suunto still lags Garmin on ecosystem depth.

Blood oxygen tracking was treated as useful for quick altitude-adaptation checks, with positioning caveats.

Blood oxygen tracking was only clearly evaluated in one review, and that reviewer called the nighttime SpO2 results poor.

Value was highly contested: base Grit X2 reviews liked the price, but Pro reviews often called the Grit X2 Pro overpriced versus rivals or the Vantage V3.

Value for money is the clearest consensus strength, with nearly every reviewer framing the Race S as aggressively priced for its mapping, GPS, AMOLED, and training feature set.

Customization was limited by four data fields and dated configuration depth despite some configurable faces and sport profiles.

Customization is useful for routes, sport modes, complications, and modes, though it is not presented as a deep smartwatch-level customization system.

Polar Flow was valued for data but repeatedly criticized as dated, sluggish, buggy, or unintuitive.

The companion app was broadly praised for route planning, maps, layout, reliability, and modern design.

Health tracking features were described as working well overall in the BGR review.

A scientific review treated the broader health measurements as weak, especially because heart-rate and sleep-related results were not strong.

Sleep timing was usually praised, while sleep-stage precision and occasional missing/broken sleep metrics limited confidence.

Sleep tracking drew mostly negative or cautious evidence, with reviewers reporting underreported sleep, inaccurate stages, or a lack of confidence in the data.

The software/OS experience was described as behind the curve despite the hardware improvements.

The operating system experience is mixed-positive: reviewers saw a basic, sports-first platform that improved in responsiveness but is not a rich smartwatch OS.

Pairing and syncing were mixed: setup could be straightforward, but Polar Flow sync failures appeared in multiple reviews.

Pairing reliability had one clearly positive review, with setup and app pairing described as simple and straightforward.

Third-party app/program support was weak, especially the lack of TrainingPeaks support on the watch.

Third-party app support is useful but not fully baked in, with praise for the app store offset by criticism that some tools should be native.

The lack of Wi-Fi was criticized because map transfers and music-style features depend on cabled or phone workflows.

Wi-Fi connectivity was evaluated mainly through map downloads, which work but were criticized for slow transfer behavior.

Buttons were widely liked for speed, texture, glove use, and firm clicks.

Button controls are mixed, with several reviewers finding the digital crown fiddly, delayed, awkward, or unpredictable despite useful physical input.

Recovery insights were one of Polar’s strongest areas, especially HRV and recovery-linked guidance.

Recovery insights are useful when presented clearly, especially HRV and Progress-style metrics, but some reviewers found the packaging weak or the conclusions discouraging.

Smartwatch capability was repeatedly described as limited, especially compared with Garmin, Apple, or WearOS-style devices.

Smartwatch features are intentionally limited: some reviewers liked the cleaner sports-watch focus, while others wanted a fuller smartwatch experience.

Step counting was a major weakness because non-step activities and even driving inflated totals.

Step counting was mixed: one review found totals similar to comparison devices, while another found counts far enough off to be noticeable.

One reviewer valued being able to charge during an activity, especially for long hikes.

Charging convenience is more mixed because reviewers liked quick charging but disliked the proprietary pad, alignment, or travel requirement.

The AMOLED panel was praised for brightness, though one review noted dramatic dimming at very low battery during workouts.

Brightness is consistently praised, with reviewers describing the screen as bright, vibrant, and easy to view in demanding conditions.

Notifications worked, but reviewers criticized the lack of replies or actionable options.

Smartphone notifications generally worked, though reviewers framed them as basic and often noted limited interaction beyond reading alerts.

The interface was serviceable but repeatedly described as dated, clunky, or old-school.

The user interface ranged from confusing at first to quick and easy once learned, with touch and app-driven navigation often helping.

Fit was split between praise for smaller-wrist suitability in Grit X2 reviews and criticism of the Pro feeling oversized on a small wrist.

Fit is praised for smaller wrists and secure sport use, especially where reviewers noted stable wear during activities.

Mapping and navigation were major strengths, but compass calibration, route workflow, missing rerouting, and map detail limitations created friction.

Mapping and navigation are standout strengths, with repeated praise for offline maps, route planning, responsiveness, and trail usefulness, despite setup and routability limits.

Comfort was mixed: some found it wearable despite size, while others called it bulky or criticized the strap breathability.

Comfort is generally strong, with reviewers praising all-day wear, unobtrusive feel, and smaller case comfort, though some disliked bulk at night.

Water resistance was viewed as a clear strength for adventure and swimming use.

Water resistance received limited opinionated evidence; one reviewer judged 50 meters acceptable for most but a downgrade for deeper use.

Music control was available for phone media, but reviewers saw it as basic.

Music controls worked adequately for phone playback, but reviewers consistently treated them as basic controls rather than a full music solution.

One long-term reviewer noted workouts recorded without crashing, despite other bugs and quirks.

Reliability is mostly positive for workout operation and GPS logging, but one scientific review and one software-focused review noted broader metric concerns.

Menu navigation was a common weak spot, with reviewers calling sleep data messy, controls unintuitive, and navigation clunky.

Menu navigation takes practice; reviewers liked short paths after learning the logic but criticized confusing menus and less-smooth swiping.

Durability drew strong praise, with reviewers reporting scratch resistance, impact resistance, and a like-new appearance after use.

Durability is mostly positive, with strong scratch/impact evidence in one test, although Gorilla Glass and reduced water rating were noted as downgrades from larger models.

Bluetooth-related features worked once connected, but reviewers complained about repeated pairing steps and finicky heart-rate broadcasting.

Bluetooth connectivity is mostly discussed through sensor support, where reviewers criticized Suunto’s one-sensor limitations and weak pairing model.

GPS accuracy was broadly positive on land, with most reviewers calling it solid or impressive, while some noted drift, slower acquisition, or poor swim tracks.

GPS accuracy received the strongest overall praise, with many reviewers calling tracks precise, strong, pristine, or among the best they had tested.

Workout variety was a strength, with reviewers praising the huge sport profile library and broad activity coverage.

Workout variety is a clear strength, with reviewers praising the broad sport-mode support for running, cycling, swimming, triathlon, MTB, and many other activities.

The lack of onboard music storage or playback was repeatedly flagged as a missing feature.

Onboard music storage is a notable weakness, with multiple reviewers calling out the absence of music downloads or internal playback.

The Titan leather band and several included straps earned strong praise, though one reviewer found a silicone strap floppy.

Band quality is mixed-positive, with comfort and secure designs praised but some straps criticized for tacky branding, stickiness, or glow-at-night drawbacks.

Heart-rate accuracy was mixed: many found it solid or improved, but interval, cycling, and bursty efforts exposed misses and lag.

Heart-rate accuracy is the most divided attribute: several reviewers found the updated sensor solid or precise, while others reported poor readings and recommended an external strap.

The screen flashlight was useful in a basic way but criticized as awkward to access or aim compared with Garmin-style torches.

Flashlight usefulness is limited because it is screen-based, though one reviewer still found it functional for basic low-light tasks.

Build quality was consistently praised as premium, rugged, and well assembled.

Build quality is a strength, with reviewers praising the watch and strap construction, premium feel, and high-quality form factor.

Training, fueling, recovery, and workout suggestions were often praised, while missing TrainingPeaks/on-watch programs hurt athlete workflows.

Coaching features are capable but uneven, with praise for structured workouts and training planning but criticism for missing Garmin-style suggested workouts and weaker presentation.

Charging was described as reasonably fast, including quick top-ups and full charging under an hour in one review.

Charging speed is consistently praised, with several reviewers reporting fast full charges or quick top-ups.

Touchscreen responsiveness was generally praised, including reliable taps/swipes and good wet-weather usability.

Touchscreen responsiveness is mostly positive after improvements, though moisture sensitivity and a less-slick feel kept scores from being perfect.

On-watch performance was generally snappy and smoother than older Polar models.

Software smoothness improved across reviews, with several reviewers calling the UI faster or fluid, though a few still saw polish issues or minor lag.

Overall fitness tracking was adequate to good, with one scientific review describing broad agreement but not class-leading precision.

General fitness tracking was praised for workout capture in one review, but another scientific test found the accuracy only middling versus better devices.

Materials were viewed positively where reviewers noted the premium case and rugged hardware.

Materials quality is highly regarded, especially the premium wrist feel, titanium option, and quality materials.

Battery life was generally seen as solid for daily use and GPS tracking, but always-on display, maps, and long navigation sessions reduced endurance.

Battery life is strong overall for an AMOLED sports watch, but reviews vary from excellent to shorter-than-claimed depending on always-on display and navigation use.

Reviewers strongly liked the rugged-premium styling, calling it one of Polar’s best-looking watches.

Style and design are among the strongest attributes, with reviewers repeatedly calling the Race S sleek, attractive, premium, or one of the best-looking sports watches.

Watch faces were generally acceptable to good, with some praise for newer designs but requests for more options.

Watch faces are improved and customizable, but one reviewer found accidental customization in the shower slightly annoying.

Wellness insights were useful for simple fitness and recovery context, though scientific sleep-detail confidence was limited.

Wellness insights were polarizing; one reviewer liked the quieter data approach, while another thought Suunto’s resource-style metric lagged Garmin-like alternatives.

The AMOLED display was one of the strongest points, repeatedly praised for color, clarity, responsiveness, and map readability.

Display quality is a consistent strength, with repeated praise for the sharp AMOLED panel, color, clarity, and readability.

Outdoor visibility was consistently excellent across bright sun, daylight, and varied conditions.

Outdoor visibility is strong; reviewers reported readability in midday sun, normal sunlight, forest shade, and other outdoor conditions.

Reviewers criticized the lack of native NFC/contactless payment support.

Contactless payments were clearly treated as missing in one review, making this a low-scoring feature for users who expect payments on-wrist.

Call handling is limited to alerts and message/call visibility, with one reviewer wishing reply functionality were available.

ECG was viewed as useful for intentional HRV readings rather than full medical-grade detection.

Safety features received limited but positive evidence, especially Find Back/navigation support that added peace of mind.

Size options are useful but not universally ideal; some reviewers liked the midsize case, while one found it still suited to thicker wrists.

Stress/wellness breathing support was described as basic.