Compare Samsung Galaxy Watch 8 vs Apple Watch Ultra 2

Automatic workout detection was generally prompt and useful for CrossFit, walks, bike rides, and common exercises, though one reviewer noted detection can take a few minutes.

Automatic activity support appears around brisk-walk logging, running-track recognition, and contextual auto-marking, though reviewers do not dwell on broad workout auto-detection.

Reviewers treated the antioxidant index as a novel but uneven health metric: one called it unique, while several questioned usefulness, verification, or anxiety risk.

The app ecosystem is a strength because Google Play and Wear OS provide major smartwatch apps alongside Samsung's own software layer.

The app ecosystem is one of the clearest strengths, with reviewers praising Apple’s native and third-party app depth over competing watch platforms.

Bands are usually described as soft, comfortable, and easier to swap, but the new proprietary lug system and compatibility limits reduce enthusiasm.

Band impressions are mostly positive, especially for comfort and material quality, though one reviewer found the Alpine Loop slow to dry after sweat or water.

Battery life is the most consistent weakness: reviewers usually got about one day to a day and a half, with heavier use requiring daily charging.

Battery life is excellent for an Apple Watch, often lasting two to three days, but dedicated GPS watches still make it look short for endurance use.

Blood oxygen tracking is repeatedly listed as available for sleep and general health monitoring, with reviewers treating SpO2 as a standard included health metric.

Blood oxygen coverage is mixed in the review set because some reviews mention the feature’s patent-related absence, while the updated PCMag review says monitoring was restored.

Bluetooth support is present for models, headphones, speakers, and phone-call features, with later reviews also noting Bluetooth 5.3.

Bluetooth support is strong for cycling accessories, especially power meters, speed sensors, and cadence sensors, with reviewers treating it as a useful sports upgrade.

Brightness is a major upgrade, with multiple reviewers citing the 3,000-nit peak brightness as a useful step up.

Brightness is a major consensus strength, with repeated praise for the 3,000-nit display and flashlight improvement.

Build quality is mostly positive thanks to sapphire glass, durability ratings, and the cushion case, although raised-screen confidence varies by reviewer.

Reviewers consistently describe the build as premium, rugged, and performance-oriented, with titanium, sapphire, and protected controls adding confidence.

Button controls are useful but mixed: customizable presses and gestures help, while several reviewers prefer the Classic's tactile controls or find base buttons underused.

Button controls are a practical Ultra advantage, especially the Action Button and gloved-use crown, though one long-term reviewer admits the Action Button never became a habit.

Call handling is well supported, with reviewers noting calls and texts from the watch and direct Bluetooth phone-call support.

Call handling gets direct praise for clear and sufficiently loud audio, helped by the Ultra line’s microphone and speaker hardware.

Calorie usefulness is present but not a standout: reviewers mention Energy Score, calories burned, and manual food/calorie entry rather than deep calorie guidance.

Calorie tracking is framed through Apple’s activity rings and standard fitness metrics rather than as a lab-tested calorie measurement system.

Charging convenience is mixed: the magnetic puck or cable is included, but there is no wall brick and reverse wireless charging is not supported.

Charging is convenient through familiar magnetic charging and occasional iPhone-powered charging, though reviewers still need to charge more often than with sports watches.

Charging speed ranges from solid short top-ups to underwhelming full charges, with reviewers reporting roughly 30 minutes to around half and up to nearly two hours for full.

Charging speed is acceptable, commonly around 0-80% in about an hour and full in roughly 90 minutes, but slower than the faster-charging Series 10.

Coaching features are a major theme, especially Running Coach and sleep guidance; reviewers found them motivating and actionable but not always deeply personalized.

Coaching improved with Training Load and effort context, but several reviewers still find Apple’s coaching and analysis shallower than Garmin, Whoop, or similar platforms.

Comfort earns the strongest praise, with many reviewers saying the thinner design, fit, and band make it easy to wear all day, during workouts, and overnight.

Comfort is context-dependent: some reviewers find the Ultra 2 comfortable all day, while others note size, tugging, or crown irritation on smaller wrists.

The companion app experience is split: Samsung Health is praised as useful and well designed, but needing multiple apps and setup attention is a recurring friction point.

Companion app quality is strong, with reviewers praising Apple Watch, Health, and Fitness app integration and easy configuration from the iPhone.

Contactless payments are clearly supported through NFC, Samsung Pay, Google Pay, or mobile payments, and reviewers treat them as expected smartwatch functionality.

Contactless payments are a reliable smartwatch strength, with Apple Pay repeatedly cited as part of the platform’s everyday convenience.

Cross-platform compatibility is a weakness because the watch targets Android/Samsung users and explicitly does not work with iPhone, with some features reserved for Samsung phones.

Cross-platform compatibility is poor because the Ultra 2 requires an iPhone and does not work with Android phones.

Customization is strong through customizable tiles, stacked widgets, app layout options, and easy access to running tasks through the Now Bar.

Customization is strong across watch faces, complications, utility slots, action button choices, and app-driven personalization.

Display quality is widely praised, with reviewers describing the AMOLED screen as vivid, gorgeous, bright, and beautiful.

Display quality is one of the best-reviewed attributes, with multiple reviewers calling it among the best smartwatch screens they have tested.

Durability is mixed: official ratings and extra case material help, but soft aluminum, raised glass, and scratch/ding concerns appear in several reviews.

Durability is a major strength, supported by titanium, sapphire, MIL-STD testing, and reviewers’ reports of wear resistance.

ECG functionality is present and one reviewer calls ECG readings dependable, with others listing ECG among the retained health features.

ECG functionality is well supported and repeatedly mentioned as part of the Ultra 2’s robust health suite, including Afib-related features.

Fit is a meaningful upgrade, with dynamic lugs and a snuger wrist position improving comfort and sensor contact.

Fit is mixed: the rectangular case can feel secure, but the single 49mm size can be challenging for smaller wrists.

Fitness tracking accuracy is good but not flawless: some reviewers saw Garmin-like agreement, while others found treadmill or distance tracking off.

Fitness tracking accuracy is excellent overall, with reviewers praising GPS, heart-rate, and overall workout tracking accuracy against reference devices.

GPS is capable and dual-band, but reviews are mixed between fast/accurate route tracking and concerns that it falls short of top sports watches.

GPS accuracy is consistently strong, with dual-frequency/multiband tracking matching or approaching Garmin-class performance in several tests.

General health tracking accuracy is solid overall, with reviewers calling data accurate or comprehensive, while not every experimental metric proves equally useful.

Health tracking accuracy is viewed positively for sleep apnea, ECG-adjacent accuracy, and broad health tracking, though some insights still need manual interpretation.

Heart-rate accuracy receives strong marks, with reviewers reporting very accurate readings or differences of only a few beats compared with controls.

Heart-rate accuracy is one of the strongest measured areas, with reviewers reporting close agreement with chest straps and armband monitors.

LTE is available as an option and can support standalone use, but several mentions frame it as an add-on rather than a core tested strength.

LTE is a core feature because cellular support comes standard, enabling calls, streaming, and messaging away from the iPhone when a plan is active.

Mapping and navigation are useful when Gemini calls up Google Maps, but one reviewer found it still pushed actual directions to the phone.

Mapping and navigation are useful but frequently caveated: Compass, waypoints, routes, and maps help, yet native GPX and phone-free offline mapping gaps remain.

Materials are mixed: reviewers mention armor aluminum and sapphire, but some found the aluminum case relatively soft or less durable than stainless steel alternatives.

Materials quality is high, with recycled titanium, sapphire protection, and premium band hardware recurring across reviews.

Menu navigation improves through tiles and quick access, but reviewers still criticize the digital bezel, sensitivity, and lack of stronger tactile navigation on the base model.

Menu navigation is helped by the crown, complications, Modular Ultra, and Smart Stack, which reviewers generally find useful for quick glanceable information.

Music controls are available through the watch and Now Bar, but one reviewer found control limited to Samsung Music in testing.

Music controls work well through Double Tap and the Music app, with speaker playback and wrist controls adding everyday convenience.

Onboard music support is credible because reviewers cite 32GB storage and the ability to download music, though the Classic offers more storage.

Onboard storage is improved to 64GB, giving reviewers more confidence for offline music, podcasts, apps, and media downloads.

The operating system experience is improved, with Wear OS 6 and One UI 8 described as better, modern, colorful, and engaging.

The operating system experience is polished, especially with watchOS 10 and 11 updates adding new watch faces, cycling features, Smart Stack, and Ultra features.

Outdoor visibility is very strong thanks to the brighter display, with reviewers saying it is readable or easy to see outdoors and in direct sunlight.

Outdoor visibility is excellent, with several reviewers reporting no trouble reading the screen in sunlight or bright reflective conditions.

Pairing reliability appears straightforward in the available evidence, with the wearable app walking users through setup after the pairing prompt.

Pairing evidence is limited but positive, with one setup transcript saying the familiar Apple pairing flow completed cleanly.

Recovery insights are useful through bedtime guidance, recovery times, vascular-load context, and post-workout actionable suggestions.

Recovery insights are a recurring weakness; reviewers repeatedly say Apple lacks Garmin/Whoop-style recovery, readiness, and performance analysis.

Reliability is mostly good for tasks, but not perfect: one reviewer had no snags, while another noticed software gremlins.

Reliability is broadly positive in long-term and battery-use impressions, with reviewers describing stable every-other-day charging and dependable use.

Safety features include an SOS shortcut through repeated button presses, though emergency functionality receives limited discussion.

Safety features are a standout Ultra trait, including siren, SOS, fall and crash detection, Backtrack, cellular waypoints, and emergency guidance.

Size options are straightforward, with the base watch offered in 40mm and 44mm sizes across reviewers.

Size options are a clear limitation because the Ultra 2 comes only in a large 49mm case.

Sleep tracking is generally strong and often described as accurate or detailed, though at least one reviewer still saw disagreement on sleep-stage details.

Sleep tracking is generally accurate but simpler than rival platforms; newer sleep apnea detection adds more health value.

Smartphone notifications are functional and reply-capable, but reviewers disagree on prominence, with some finding alerts easy to miss.

Smartphone notifications are handled well, with reviewers praising rich notifications, texting, and responsive notification handling within the Apple ecosystem.

Smartwatch features are broad, spanning apps, Gemini, calls, texts, payments, health tools, and phone-extension functions.

Smartwatch features are outstanding overall, with reviewers treating the Ultra 2 as Apple’s most full-featured wearable and a top true smartwatch.

Software smoothness is mostly strong, with snappy, responsive, modern performance repeatedly noted, though wake-up slowness appears in one review.

Software smoothness is strong, with reviewers describing zippy, quick, responsive, and buttery-smooth operation.

Step counting looks reasonably accurate, with manual alignment and only small variances reported.

Stress tracking is present through stress-level views, breathing exercises, high-stress alerts, and manual monitoring options.

Style and design are polarizing but often praised: reviewers like the refreshed, minimalist cushion look, while some strongly dislike the standard model's appearance.

Style and design are praised for the premium rugged look, especially the black titanium version, though the large look is not for everyone.

Third-party app support is strong thanks to Google Play access and examples like Spotify and other smartwatch apps.

Third-party app support is excellent through the watchOS App Store and helps fill gaps in navigation, fitness, and everyday smartwatch use.

Touchscreen responsiveness is strong overall, with reviewers noting instantaneous responses, very responsive gestures, and quick bezel-style swiping.

Touchscreen responsiveness is excellent on land, with reviewers praising taps and swipes, though touch does not work underwater.

The user interface is one of the bigger upgrades, with Now Bar, better tiles, quick toggles, and smoother layouts drawing repeated praise.

The user interface is generally easy and polished, especially for iPhone users, Smart Stack, and redesigned watchOS apps.

Value for money is mixed: some reviewers gave strong recommendations, while others questioned the price increase or upgrade value.

Value is mixed: the Ultra 2 can justify its price for users who exploit its rugged, cellular, and battery advantages, but reviewers repeatedly note cheaper or more specialized alternatives.

Voice assistant quality is a standout because Gemini is repeatedly described as useful, faster, better than older assistants, and well integrated.

Voice assistant quality improved with on-device Siri, faster commands, better dictation, and less cloud dependence, though a few minor voice quirks remain.

Watch face quality is good, with customizable faces, new designs, phone editing, and broad watch-face access mentioned.

Watch face quality is strong, especially Modular Ultra and complication-rich layouts designed for the large screen.

Water resistance is solid, with 5 ATM, IP ratings, and real swim/lake use appearing in the evidence.

Water resistance is a major strength, with 100m/WR100 ratings, diving support, and better water credentials than standard Apple Watches.

Wellness insights are broad and often useful, especially Energy Score, Vascular Load, sleep coaching, and bedtime guidance, although some reviewers found the data overload or limited impact mixed.

Wellness insights are broad but uneven: Vitals, Health data, and trends help, but reviewers often want more interpretation and readiness-style guidance.

Wi-Fi connectivity is supported, including 5GHz Wi-Fi in one review, but reviewers mostly mention it as a spec or requirement for connected AI use.

Wi-Fi is present as part of the core connectivity package, though reviews discuss it mostly as availability rather than as a tested performance differentiator.

Workout tracking variety is broad, with many activity modes and automatic activity detection mentioned across reviews.

Workout tracking variety is strong across running, cycling, hiking, swimming, diving, strength training, structured workouts, and third-party sport apps.