Compare OnePlus Watch 3 vs Samsung Galaxy Watch Ultra (2024)

Blood oxygen readings were limited in coverage but strongly positive where tested against reference readings.

Blood oxygen evidence was limited and negative, with one review finding the overnight readings unusually low versus other wearables.

Menu navigation benefited from the improved rotating crown, making scrolling through screens and menus easier.

Menu navigation was one of the weaker usability areas, mainly because reviewers missed the rotating bezel and found Tile scrolling tedious.

Bluetooth connectivity drew positive feedback in the one review that judged it directly, with no drops or latency issues reported.

Bluetooth-related sensor connectivity drew criticism in the FTP/power-meter context, where the connection was described as spotty.

Charging speed was consistently praised, with reviewers highlighting quick top-ups and fast full charges.

Charging speed was a repeated weakness, with reviewers often reporting around two hours or saying faster charging should be expected at this tier.

Mapping and navigation were praised for walking directions, Google Maps usefulness, and richer workout maps.

Navigation was a weak spot: reviewers liked basic Track Back or GPX-style routing but criticized missing maps and bare-minimum routing.

The OHealth companion app was mostly praised for clarity and layout, but setup, device switching, and customization drew caveats.

Companion app feedback was limited but negative because one reviewer disliked needing three separate Samsung apps to access full watch functionality.

Reliability was positive overall, with smooth daily use, stable phone switching in some cases, and strong long-term impressions.

Reliability was mixed: some reviewers saw software or wear-detection quirks, while another only complained about a missing low-battery warning.

Recovery guidance was a weakness, with reviewers wanting more advanced load and recovery context.

Recovery insights were useful when tied to Energy Score, Wellness Tips, sleep score factors, and physical recovery context, though reviewers did not treat them as perfect.

Step counting was praised in one detailed comparison as very close to manual counts.

Step counting was acceptable but imperfect, with one reviewer tolerating discrepancies and another noting phantom steps while driving.

Value for money was generally strong, especially around battery and features for the price, though some reviewers questioned value versus discounted rivals.

Value was one of the most contested areas because reviewers liked the watch but repeatedly compared its $649 price against cheaper Galaxy alternatives.

Charging convenience was mostly positive thanks to the small magnetic dock and USB-C-friendly design, though comfort-related charging avoidance appeared once.

Charging convenience was mixed: one reviewer liked infrequent charging, while others disliked losing reverse wireless charging.

Water resistance was positively judged in real-world immersion use, with no reported problems afterward.

Water resistance was useful for swimming and surf-style testing, but reviewers repeatedly cautioned that it is not a true dive-sports watch.

Stress tracking was mixed, ranging from vague and unhelpful to a basic wellness-style readout rather than deep stress guidance.

Stress tracking was weak in the available evidence, with one review calling it an afterthought and another saying it made them more stressed.

Fit was the main ergonomic weakness, especially for smaller wrists or lug geometry, though the 43mm model improved this for some reviewers.

Fit evidence was limited but positive, with one reviewer able to get a snug, usable fit from the supplied band setup.

Touchscreen responsiveness was praised in the review that explicitly judged the display as responsive.

Touch interaction was mixed: the touch bezel could be excellent, but wet or sweaty workout use remained a clear limitation.

Music controls and playback support were mixed: offline Spotify was useful, but Spotify switching could be janky.

Music controls had limited but positive evidence, with one reviewer liking the ability to pause or skip audio from the watch.

Third-party app support was strong through Play Store access and Google services, though individual apps could still have quirks.

Third-party app support was useful through Wear OS, but custom watch-face support created a notable limitation for one reviewer.

Customization was good for faces and buttons, but reviewers wanted more dashboard or personalization flexibility.

Customization was praised for giving easy access to preferred health information and allowing users to tailor the home screen.

LTE connectivity was the clearest missing smart feature, repeatedly criticized as absent.

LTE connectivity evidence was opinionated around the forced LTE/cellular model, which one reviewer disliked because there was no cheaper Bluetooth-only version.

Style and design were mostly praised as premium, traditional, and attractive, with the 43mm design drawing the main negative notes.

Design reactions were highly polarized: some reviewers loved the bold Ultra look, while others called it derivative, bulky, or aesthetically off.

Size options were a frequent concern for the larger model, partly relieved by the 43mm version but still criticized in some reviews.

Size options were a common limitation because the watch only comes in one large 47mm case and several reviewers found it bulky.

Build quality was mostly premium, though the 43mm version drew complaints for feeling cheaper.

Build quality was a standout strength, with reviewers repeatedly calling it top-notch, excellent, solid, or tank-like.

Button controls were a standout: the functional rotating crown, haptics, and shortcut controls earned broad praise.

Button feedback was mixed: reviewers liked the Quick Button and tactile controls, but several missed a rotating bezel or crown-like navigation.

Call handling was usable, but speaker volume and loudness were recurring limitations.

Call handling had limited but positive evidence, with one long-term reviewer saying calls worked well enough to use more often.

Sleep tracking drew mostly positive feedback, with reviewers praising detection and sleep-stage accuracy, though interpretation could vary.

Sleep tracking accuracy was mixed: some reviewers found sleep timing and stages accurate, while others saw gaps, inflated scores, or difficulty distinguishing waking from stillness.

Battery life was the strongest consensus attribute, praised in every review as class-leading or unusually long for Wear OS.

Battery life was one of the clearest improvements, usually landing around two to three days, though reviewers still noted it falls short of true outdoor-watch endurance.

Compatibility was strong across Android phones but poor for iPhone owners, since reviewers repeatedly noted there is no iPhone support.

Compatibility was a recurring concern: reviewers praised Samsung ecosystem integration but criticized Samsung-phone-only features and Android-only restrictions.

The user interface ranged from easy and polished to unintuitive depending on reviewer and workflow.

The user interface was praised by the reviewers who scored it, especially for refinement, tiles, and intuitive operation.

The operating-system experience was generally smooth and capable, though mode switching or background wake delays could occasionally interrupt it.

Operating system feedback was mostly positive for Wear OS completeness, though the one-year review noted a One UI update skewed some running metrics.

Contactless payments worked well where reviewers tested or discussed Google Wallet and NFC payments.

Payments were useful and reliable in the positive evidence, though one reviewer found PIN friction annoying.

Watch faces were generally useful, attractive, and customizable, though one reviewer found the video face clunky.

Watch faces were a highlight for several reviewers, with praise for aesthetics, data density, and wide selection.

Safety features were mixed: fall detection and SOS helped, but some reviewers wanted more detection features or noted regional gaps.

Safety features had limited positive evidence, with the emergency siren described as loud enough to be meaningful.

Display quality was a consistent strength, with reviewers praising the AMOLED panel, sharpness, and vividness.

Display quality was one of the strongest areas, with reviewers calling the AMOLED screen excellent, gorgeous, and among the best on Android watches.

ECG was a major regional caveat: reviewers liked or valued the feature where available, but repeatedly criticized its absence in the US or North America.

ECG evidence was limited and lukewarm, with one reviewer finding it interesting but not personally necessary.

Software smoothness was a major strength across reviews, with only isolated reports of sluggishness or UI lag.

Software smoothness was a strong point, with reviewers repeatedly describing the interface as snappy, glitch-free, or without lag.

The Wear OS app ecosystem was a clear strength, giving the watch broad app access and flexibility.

Wear OS app access was treated as a major strength, with reviewers citing useful mainstream apps and thriving third-party support, though not every customization app remained compatible.

Notifications were generally prompt and useful, with large-screen readability and decent filtering options.

Notifications were generally useful and prompt in the scored evidence, helping the watch function as a less distracting phone extension.

Materials quality was praised for sapphire crystal, titanium bezel details, and premium-feeling construction.

Materials quality was praised for titanium and sapphire construction, with reviewers describing the casing and glass as premium or durable.

Wellness insights were useful for some reviewers but too vague or light for others, producing a mixed consensus.

Wellness insights were mixed: Energy Score and tips sometimes felt useful or accurate, while AGEs and some readiness-style metrics were vague or inconsistent.

Heart-rate accuracy was usually acceptable to good, especially at steady effort, but several reviewers noted lag or misses at high intensity.

Heart rate accuracy was good for many runs and workouts, but several reviews found sport-specific misses, especially cycling, rowing, or rough conditions.

Coaching features lagged behind the hardware, with reviewers asking for more actionable guidance and deeper interpretation.

Coaching evidence was limited and mixed, with strength-training voice guidance seen as potentially useful but dependent on the user’s routine.

GPS accuracy was mostly praised, especially on runs and hikes, but dense city conditions and edge cases could still challenge it.

GPS accuracy drew strong agreement: multiple reviewers found routes, lock speed, and distance tracking accurate, with only some urban caveats.

Reviewers generally found the health platform improved and useful, but not consistently at Samsung, Google, or medical-grade depth.

Health tracking accuracy was mixed: some readings closely matched controls, but broader health metrics and fitness tracking drew caveats.

Pairing and setup were mixed: setup could require retries, while some reviewers found it straightforward.

Pairing reliability was mixed: phone/GPS pairing could be easy or reliable, while power-meter pairing was strongly criticized.

Brightness was praised, especially for workouts and daylight readability.

Brightness was widely praised, especially the 3,000-nit display and strong automatic brightness behavior in direct sun.

Durability scored strongly, with reviewers citing rugged ratings, scratch resistance, and long-term wear without visible damage.

Durability was generally strong, supported by scratch resistance and long-term wear, though one reviewer noted everyday case indentations.

Fitness tracking was broadly solid for casual users, though reviewers warned that serious athletes may still prefer Garmin or chest-strap setups.

Fitness tracking accuracy was mostly positive but not flawless, with reviewers finding valid or strong data while also flagging average or sport-specific weaknesses.

Comfort was split: many reviewers found it wearable or very comfortable, while others found the larger model heavy or awkward.

Comfort was highly wrist-dependent: several reviewers found it comfortable despite the size, while others said it disrupted sleep or remained hard to forget.

Band quality was mixed, from highly comfortable and integrated to basic or irritating depending on reviewer and model.

Band feedback was split: several reviewers liked the ease, comfort, or redesigned mechanism, while others criticized the Marine or stock band design.

Automatic workout behavior and auto-pause were well received where discussed, especially for walks and cycling.

Reviewers generally praised automatic workout detection, saying it started or paused workouts reliably and often worked without asking for confirmation.

Core smartwatch functionality was widely praised, with reviewers calling it complete and capable for everyday use.

Smartwatch features were praised overall, especially for Samsung users, though some reviewers stressed it is still a large, premium sports-style smartwatch.

Workout variety was a strength, with many sports modes and pro modes, though some modes were described as generic.

Workout variety was good for mainstream exercise and multisport use, though one review noted the data-field depth still trails endurance-focused rivals.

Outdoor visibility was excellent across reviews, with repeated praise for direct-sunlight legibility.

Outdoor visibility was consistently strong thanks to the bright display, with reviewers reporting easy readability in sun and outdoor workouts.

Voice assistant feedback was limited but positive, with one reviewer finding Google Assistant very fast.

Voice assistant evidence was limited but positive when using Google Assistant instead of Bixby.

Only the one-year review gave opinionated evidence on antioxidant tracking, and it was lukewarm because the reviewer had barely used it and noted it was not passive.

Calorie tracking had a notable low point where one reviewer said goals triggered while merely sitting.

Flashlight evidence was limited but positive, with one reviewer naming the flashlight shortcut as their favorite Quick Button use.