Compare Garmin Forerunner 255S vs Samsung Galaxy Watch 8

P1 Garmin Forerunner 255S
P2 Samsung Galaxy Watch 8

Comparison Takeaways

Garmin Forerunner 255S

Where It Has the Edge

  • cross-platform compatibility is 4.5 vs 2.0. The watch works across Android and iOS, with a consistent Garmin Connect experience, though Android gets better message...
  • battery life is 4.4 vs 3.0. Battery life is a major strength, commonly landing around a week or more, though music, GPS and oxygen...
  • reliability is 4.8 vs 3.5. Reliability is supported by long-term updates and GPS stability, with Garmin’s longevity praised in follow-up use.
  • fitness tracking accuracy is 4.5 vs 3.6. Fitness tracking is broadly accurate and analysis-rich, especially for endurance training, with some caveats around live heart-rate smoothing.

Samsung Galaxy Watch 8

Where It Has the Edge

  • touchscreen responsiveness is 4.4 vs 1.0. Touchscreen responsiveness is strong overall, with reviewers noting instantaneous responses, very responsive gestures, and quick bezel-style swiping.
  • third-party app support is 4.8 vs 2.5. Third-party app support is strong thanks to Google Play access and examples like Spotify and other smartwatch apps.
  • app ecosystem is 4.6 vs 3.5. The app ecosystem is a strength because Google Play and Wear OS provide major smartwatch apps alongside Samsung's...
  • call handling is 4.5 vs 3.5. Call handling is well supported, with reviewers noting calls and texts from the watch and direct Bluetooth phone-call...
Average score
Product 1: Garmin Forerunner 255S
4.0
Product 2: Samsung Galaxy Watch 8
4.0
activity auto-detection
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
4.3

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.

antioxidant index
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
2.9

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

app ecosystem
Product 1: Garmin Forerunner 255S
3.5

Connect IQ adds watch faces, data fields and apps, but reviewers describe the ecosystem as useful rather than Apple-level and sometimes limited.

Product 2: Samsung Galaxy Watch 8
4.6

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

band quality
Product 1: Garmin Forerunner 255S
4.4

Reviewers consistently liked the silicone strap, calling it comfortable, adjustable, exercise-ready and tough enough for regular training use.

Product 2: Samsung Galaxy Watch 8
4.0

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

battery life
Product 1: Garmin Forerunner 255S
4.4

Battery life is a major strength, commonly landing around a week or more, though music, GPS and oxygen monitoring can reduce it.

Product 2: Samsung Galaxy Watch 8
3.0

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.

blood oxygen tracking
Product 1: Garmin Forerunner 255S
4.0

Blood oxygen tracking is present for sleep or daytime monitoring, but reviews treat it as one metric among many rather than a standout feature.

Product 2: Samsung Galaxy Watch 8
4.0

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

Bluetooth connectivity
Product 1: Garmin Forerunner 255S
3.9

Bluetooth headphone pairing is generally workable and music-friendly, though one long-term user found headphone pairing slow and frustrating.

Product 2: Samsung Galaxy Watch 8
4.0

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

brightness
Product 1: Garmin Forerunner 255S
4.0

Brightness control is handled through physical buttons and fits the watch’s practical, low-key outdoor design.

Product 2: Samsung Galaxy Watch 8
4.6

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

build quality
Product 1: Garmin Forerunner 255S
4.1

Build quality is generally solid for a lightweight polymer watch, with durable long-term impressions but some concern about scratch-prone Gorilla Glass.

Product 2: Samsung Galaxy Watch 8
4.1

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

button controls
Product 1: Garmin Forerunner 255S
4.2

The five-button layout is repeatedly praised for workouts, water use and avoiding accidental touches, even if it requires adjustment.

Product 2: Samsung Galaxy Watch 8
3.6

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.

call handling
Product 1: Garmin Forerunner 255S
3.5

Call handling is basic: Android users can respond or reject calls through the watch, but it still relies heavily on the paired phone.

Product 2: Samsung Galaxy Watch 8
4.5

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

calorie tracking usefulness
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
3.6

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

charging convenience
Product 1: Garmin Forerunner 255S
3.2

Charging is functional but not premium; Garmin’s common cable is convenient for Garmin owners, while the proprietary setup feels dated to one reviewer.

Product 2: Samsung Galaxy Watch 8
3.3

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 speed
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
3.6

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.

coaching features
Product 1: Garmin Forerunner 255S
4.4

Coaching features are a clear strength, with Garmin Coach, suggested workouts, race tools and personal-trainer-like prompts repeatedly highlighted.

Product 2: Samsung Galaxy Watch 8
4.0

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

comfort
Product 1: Garmin Forerunner 255S
4.6

Comfort is one of the strongest points, especially for sleep and long workouts, because the smaller case feels light and unobtrusive.

Product 2: Samsung Galaxy Watch 8
4.5

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.

companion app quality
Product 1: Garmin Forerunner 255S
3.7

Garmin Connect is useful and reliable for setup, syncing, visualization and customization, though music setup and app separation can confuse newcomers.

Product 2: Samsung Galaxy Watch 8
3.9

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.

contactless payments
Product 1: Garmin Forerunner 255S
3.8

Garmin Pay and NFC are supported and useful, but reviewers note Garmin’s payment system lacks the polish or bank support of rivals.

Product 2: Samsung Galaxy Watch 8
4.5

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

cross-platform compatibility
Product 1: Garmin Forerunner 255S
4.5

The watch works across Android and iOS, with a consistent Garmin Connect experience, though Android gets better message response support.

Product 2: Samsung Galaxy Watch 8
2.0

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.

customization options
Product 1: Garmin Forerunner 255S
4.4

Customization is strong, covering workout data screens, watch faces, colors, app settings and per-activity tracking options.

Product 2: Samsung Galaxy Watch 8
4.5

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

display quality
Product 1: Garmin Forerunner 255S
3.9

The MIP display is practical and readable rather than flashy, with reviewers trading away AMOLED vibrancy for battery life and outdoor usability.

Product 2: Samsung Galaxy Watch 8
4.6

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

durability
Product 1: Garmin Forerunner 255S
4.4

Durability looks good in longer-term use, with reviewers reporting little wear, though the bezel and glass can still be scratch concerns.

Product 2: Samsung Galaxy Watch 8
3.7

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

ECG functionality
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
4.2

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

fit
Product 1: Garmin Forerunner 255S
4.7

Fit is excellent for smaller wrists, with the 41mm case repeatedly described as comfortable and well-sized.

Product 2: Samsung Galaxy Watch 8
4.4

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

fitness tracking accuracy
Product 1: Garmin Forerunner 255S
4.5

Fitness tracking is broadly accurate and analysis-rich, especially for endurance training, with some caveats around live heart-rate smoothing.

Product 2: Samsung Galaxy Watch 8
3.6

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

GPS accuracy
Product 1: Garmin Forerunner 255S
4.2

GPS accuracy is a major strength thanks to multiband GNSS, though a few reviewers saw small variations or altitude inaccuracies in specific scenarios.

Product 2: Samsung Galaxy Watch 8
3.9

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.

health tracking accuracy
Product 1: Garmin Forerunner 255S
3.8

Health tracking is useful but training-oriented; reviewers appreciated HRV and recovery metrics while noting it is not a full health wearable.

Product 2: Samsung Galaxy Watch 8
4.1

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

heart rate accuracy
Product 1: Garmin Forerunner 255S
4.3

Heart-rate accuracy is generally strong for a wrist watch, often close to straps, but reviewers still recommend straps for the sharpest live accuracy.

Product 2: Samsung Galaxy Watch 8
4.6

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

LTE connectivity
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
4.0

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.

mapping and navigation
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
3.3

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

materials quality
Product 1: Garmin Forerunner 255S
4.0

Materials are typical Garmin Forerunner fare: lightweight polymer, Gorilla Glass and silicone, chosen more for sport practicality than luxury.

Product 2: Samsung Galaxy Watch 8
3.5

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

menu navigation
Product 1: Garmin Forerunner 255S
2.9

Menu navigation is the clearest weakness, with several reviewers calling it complex or confusing despite button-control advantages.

Product 2: Samsung Galaxy Watch 8
3.2

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.

music controls
Product 1: Garmin Forerunner 255S
4.0

Music controls are present for phone audio, and the watch exposes quick music controls from the button interface.

Product 2: Samsung Galaxy Watch 8
3.7

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

onboard music storage
Product 1: Garmin Forerunner 255S
3.7

Onboard music is a useful feature with storage for offline audio, but setup and loading can be slow or confusing for some users.

Product 2: Samsung Galaxy Watch 8
4.0

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

operating system experience
Product 1: Garmin Forerunner 255S
3.9

The operating system is familiar and capable, with one reviewer praising its ease while others note Garmin’s learning curve.

Product 2: Samsung Galaxy Watch 8
4.3

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

outdoor visibility
Product 1: Garmin Forerunner 255S
4.7

Outdoor visibility is excellent because the MIP display remains readable in sunlight with very little glare.

Product 2: Samsung Galaxy Watch 8
4.5

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.

pairing reliability
Product 1: Garmin Forerunner 255S
3.8

Pairing and acquisition are mostly reliable, especially GPS and Bluetooth headphones, but headphone pairing frustrated one user.

Product 2: Samsung Galaxy Watch 8
4.0

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

recovery insights
Product 1: Garmin Forerunner 255S
4.3

Recovery insights are a strong training feature, including HRV, Body Battery, Training Load and Morning Report-style readiness context.

Product 2: Samsung Galaxy Watch 8
4.0

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

reliability
Product 1: Garmin Forerunner 255S
4.8

Reliability is supported by long-term updates and GPS stability, with Garmin’s longevity praised in follow-up use.

Product 2: Samsung Galaxy Watch 8
3.5

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

safety features
Product 1: Garmin Forerunner 255S
3.5

Safety features exist through optional Garmin tools such as LiveTrack, though the reviews provide limited evaluation beyond availability.

Product 2: Samsung Galaxy Watch 8
4.0

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

size options
Product 1: Garmin Forerunner 255S
4.7

Size options are a standout benefit because the 255S gives smaller wrists a serious multisport watch without losing core training tools.

Product 2: Samsung Galaxy Watch 8
4.0

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

sleep tracking accuracy
Product 1: Garmin Forerunner 255S
3.8

Sleep tracking is viewed as useful and reasonably aligned with other devices, though not as deep as dedicated sleep-focused wearables.

Product 2: Samsung Galaxy Watch 8
4.1

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

smartphone notifications
Product 1: Garmin Forerunner 255S
4.1

Smartphone notifications work well for basic alerts and quick replies, especially on Android, but remain constrained by the small non-touch screen.

Product 2: Samsung Galaxy Watch 8
3.5

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

smartwatch features
Product 1: Garmin Forerunner 255S
4.0

Smartwatch features are useful but intentionally basic, prioritizing training over app-rich Apple, Google or Samsung-style smartwatch polish.

Product 2: Samsung Galaxy Watch 8
4.4

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

software smoothness
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
4.2

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

step counting accuracy
Product 1: Garmin Forerunner 255S
4.3

Step counting appears accurate in the reviewer evidence, including a near-spot-on manual step check.

Product 2: Samsung Galaxy Watch 8
4.0

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

stress tracking
Product 1: Garmin Forerunner 255S
4.0

Stress tracking is available as part of the broader health suite, with reviewers presenting it as a daily wellness metric.

Product 2: Samsung Galaxy Watch 8
3.7

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

style and design
Product 1: Garmin Forerunner 255S
3.5

Style is utilitarian rather than flashy, but reviewers consider it acceptable for everyday wear if you choose muted colors.

Product 2: Samsung Galaxy Watch 8
3.9

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

third-party app support
Product 1: Garmin Forerunner 255S
2.5

Third-party app support exists through Connect IQ, Strava, Komoot and music apps, but reviewers describe it as limited versus mainstream smartwatches.

Product 2: Samsung Galaxy Watch 8
4.8

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

touchscreen responsiveness
Product 1: Garmin Forerunner 255S
1.0

Touchscreen responsiveness scores poorly because the watch has no touchscreen; reviewers mostly frame that as a deliberate sport-watch tradeoff.

Product 2: Samsung Galaxy Watch 8
4.4

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

user interface
Product 1: Garmin Forerunner 255S
3.6

The interface is powerful but polarizing: some find it easy once learned, while newcomers can find it dense or confusing.

Product 2: Samsung Galaxy Watch 8
4.3

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

value for money
Product 1: Garmin Forerunner 255S
4.4

Value is strong for runners and multisport users, especially given multiband GPS, battery life and training depth at a midrange price.

Product 2: Samsung Galaxy Watch 8
3.7

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

voice assistant quality
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
4.5

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

watch face quality
Product 1: Garmin Forerunner 255S
4.3

Watch face support is good through built-in faces and Connect IQ, with reviewers noting customization and many free options.

Product 2: Samsung Galaxy Watch 8
4.3

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

water resistance
Product 1: Garmin Forerunner 255S
4.5

Water resistance is strong for swimming, rain and shower use, and physical buttons are an advantage around water.

Product 2: Samsung Galaxy Watch 8
4.2

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

wellness insights
Product 1: Garmin Forerunner 255S
4.2

Wellness insights such as Morning Report, Body Battery and general wellbeing metrics are useful companions to the training focus.

Product 2: Samsung Galaxy Watch 8
4.0

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.

Wi-Fi connectivity
Product 1: Garmin Forerunner 255S
No score yet
Product 2: Samsung Galaxy Watch 8
4.0

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.

workout tracking variety
Product 1: Garmin Forerunner 255S
4.6

Workout variety is extensive, spanning running, cycling, swimming, hiking, yoga, triathlon and dozens of app-manageable workout types.

Product 2: Samsung Galaxy Watch 8
4.2

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