Compare Coros Pace 4 vs Samsung Galaxy Watch Ultra (2025)

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 within Coros, especially the app, training hub and browser-based training lab, but it is not an open app-store ecosystem.

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 good, especially for the silicone and stretchy strap designs, though nylon drew caveats about staying wet or absorbing sweat.

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

Battery life is a major strength across nearly every review, especially given the small AMOLED design and long GPS runtime.

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 support is present through the sensor set, though reviewers mostly treated it as a basic or altitude-oriented metric rather than a major wellness strength.

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

Bluetooth connectivity is useful for sensors and audio devices, with evidence for broadcasting heart rate and pairing external straps or accessories.

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

Brightness is strong overall, especially at higher settings, though one reviewer found the default setting conservative.

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

Build quality is acceptable for the price, with a solid lightweight shell, but the all-plastic construction lacks a premium feel.

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

Button controls are mixed: the extra action button is useful in workouts, but reviewers criticized limited home-screen customization and accidental dial behavior.

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 effectively absent because the Pace 4 has a microphone but no speaker, so reviewers repeatedly noted that it cannot take voice calls.

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

Calorie tracking is available as part of the daily activity package, but reviewers mostly mention it as a tracked metric rather than deeply evaluating its usefulness.

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: the compact adapter and keyring are handy, but needing a USB-C cable or extra head adds friction for some users.

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

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

Coaching features are a notable strength, with training analysis, training load, plans and voice logs giving runners useful context without a premium subscription.

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

Comfort is one of the strongest points, with reviewers repeatedly praising the light, thin design for all-day wear, sleep and running.

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

The companion app is a clear strength, with useful summaries, route tools, transcribed voice notes, training logs and broad free training analytics.

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

Contactless payments are not supported, with reviewers explicitly citing missing NFC or contactless payments as part of the watch's limited smartwatch feature set.

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

Cross-platform compatibility is straightforward, with direct evidence that the watch supports both iPhone and Android smartphones.

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

Customization options are good for sports modes and data fields, but watch-face customization is less flexible than some competitors.

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

Display quality is widely praised: reviewers consistently highlight the AMOLED panel's clarity, color, sharpness and usefulness compared with the older MIP screen.

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

Durability is adequate for a budget sports watch, but reviewers raised concerns about screen glass, lack of a raised bezel and ruggedness versus higher-end models.

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

ECG evidence is conflicting: one review listed an electrocardiogram sensor, while another explicitly said the Pace 4 lacks the sensors required for ECG readings.

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 especially good for smaller wrists and for users who dislike bulky sports watches.

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

Fitness tracking accuracy is strong for the watch's running-focused purpose, though the scientific review found the overall performance less consistent than the most positive running reviews.

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 areas, with most reviewers reporting accurate tracks and reliable distance data, though a few saw small offsets or margin of error.

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

Health tracking is useful for broad trends, but reviewer evidence is mixed because general health data was considered reliable in some reviews while testing found deviations in others.

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 generally good for running and steady efforts, but several reviewers found inconsistency during cycling, gym work, intervals or cadence-lock situations.

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.

Mapping and navigation are useful but limited: breadcrumb routing and route following work, but reviewers repeatedly wanted offline maps.

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 intentionally cost-conscious, relying heavily on plastic and mineral glass rather than premium metals or sapphire.

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

Menu navigation is simple and responsive, helped by the control-center style layout and faster processor.

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

Music controls are mixed: some reviews mention useful phone media controls, while others note missing or still-limited controls depending on firmware or expectations.

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

Onboard music storage exists, but it is limited to manually loaded MP3 files and lacks major streaming-service integration.

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

The operating system experience is practical and usable, but one reviewer found it less slick than Garmin or other polished OLED-watch interfaces.

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

Outdoor visibility is excellent in the evidence, with multiple reviewers reporting easy viewing in sunlight and outdoor conditions.

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

Pairing reliability received direct positive evidence from one review, which reported no issues connecting the watch to wireless headphones.

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

Recovery insights are useful but not perfect, with reviewers pointing to training load, recovery time and status metrics while also noting some quirks in how training load is handled.

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

Reliability is strong in normal use, with reviewers reporting workouts, performance and daily use worked well overall.

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 are modest; the display flashlight is useful in a pinch but reviewers found it less capable than dedicated LED flashlight systems.

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

Size options are limited because reviewers repeatedly note the single-size approach and wish Coros offered more case sizes.

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 is comfortable to use overnight and often detects bed and wake times well, but sleep-stage accuracy drew repeated caveats and one scientific review rated it poorly.

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

Smartphone notifications are basic and limited; reviewers noted plain text, small text size and limited interaction rather than rich notification handling.

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

Smartwatch features are basic; the watch focuses on training tools and sacrifices richer everyday smarts, maps, payments, calls and advanced media integrations.

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

Software smoothness is a strength, with multiple reviewers describing the interface as responsive, snappy and free of lag.

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

Step counting accuracy received direct positive evidence from one reviewer, who found the Pace 4's counts aligned with Garmin and Apple watches.

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

Stress tracking appears as part of the recovery and wellness picture, with sleep, stress and HRV used to guide training and general health decisions.

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

Style and design are clean, modern and attractive for a sports-first watch, though not luxurious.

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

Third-party app support is very limited compared with Garmin-style app stores, with reviewer evidence pointing to the absence of a Connect IQ-like ecosystem.

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 usable and generally good, but accidental touches and dial inputs during runs or with gloves reduce the score.

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

The user interface is generally easy and practical, though some reviewers prefer Garmin's polish or criticized small text in parts of the UI.

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

Value for money is the strongest consensus point, with every review citing the Pace 4 as a strong bargain or high-value running watch.

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

Voice assistant quality is not a real feature on this watch; the microphone is used for workout notes rather than assistant interactions.

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 generally decent, but reviewers wanted deeper customization and more useful glanceable data.

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

Water resistance is solid for normal fitness use, with repeated 5 ATM references and one reviewer confirming it handled wet conditions and brief submersion.

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

Wellness insights are practical for trend awareness, combining HRV, sleep, stress and recovery information to help users interpret training readiness.

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

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

Workout variety is broad for a compact running watch, covering major sports, multisport/triathlon and many gym, outdoor and activity profiles.

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