Average score
Product 1: Garmin Forerunner 965
4.0
Product 2: Garmin Fenix 8
3.9
activity auto-detection
Product 1: Garmin Forerunner 965
2.0

Auto-detection is explicitly criticized in testing, with reviewers saying workouts usually need to be started manually to access the watch’s richer tracking features.

Product 2: Garmin Fenix 8
2.8

Move IQ auto-detection is present, but one reviewer found it less reliable than starting workouts manually.

app ecosystem
Product 1: Garmin Forerunner 965
4.0

The app ecosystem is solid rather than class-leading: reviewers cite Connect IQ support and a healthy app catalog, but not the broader polish or reach of Apple or Wear OS ecosystems.

Product 2: Garmin Fenix 8
3.2

Garmin offers a meaningful Connect IQ ecosystem, but reviewers still describe the broader app experience as behind Apple and Samsung.

band quality
Product 1: Garmin Forerunner 965
4.4

Band quality is generally good, with flexible silicone straps and solid sweat performance, though silicone can stay damp and irritate skin if not dried after workouts.

Product 2: Garmin Fenix 8
4.2

The included silicone band was described as comfortable, easy to clean, and functional for everyday wear.

battery life
Product 1: Garmin Forerunner 965
4.4

Battery life is a major strength. Reviewers report multi-day to multi-week endurance depending on usage, with always-on display and GPS workouts reducing runtime but still leaving it ahead of many rivals.

Product 2: Garmin Fenix 8
4.6

Battery life is a standout across reviews, with multi-day real-world endurance and especially strong results on larger or solar variants.

blood oxygen tracking
Product 1: Garmin Forerunner 965
4.1

The watch supports blood oxygen tracking and related wellness sensors, but reviewers discuss it more as part of the feature set than as a standout accuracy differentiator.

Product 2: Garmin Fenix 8
3.6

Pulse-ox support is included as part of the Fenix 8’s broad sensor suite, though reviewers did not test its accuracy deeply.

Bluetooth connectivity
Product 1: Garmin Forerunner 965
4.4

Bluetooth connectivity is dependable for phone pairing and headphone playback, with no major complaints in the selected reviews.

Product 2: Garmin Fenix 8
4.2

Bluetooth setup and device support were described positively, with straightforward accessory pairing and phone-linked features.

brightness
Product 1: Garmin Forerunner 965
4.7

Brightness is repeatedly praised. Reviewers call the AMOLED screen bright, vivid, and easy to read in varied lighting.

Product 2: Garmin Fenix 8
4.5

Reviewers found the screen bright enough for clear viewing, especially on the AMOLED model.

build quality
Product 1: Garmin Forerunner 965
4.5

Build quality feels premium overall, helped by the metal or titanium bezel and polished finish, even if outright ruggedness is not the headline strength.

Product 2: Garmin Fenix 8
4.6

The watch was repeatedly described as sturdy and well assembled, with a premium, rugged feel.

button controls
Product 1: Garmin Forerunner 965
4.7

Button controls are a clear positive. Multiple reviews praise the tactile hardware buttons and say they remain easy to use during workouts and with gloves.

Product 2: Garmin Fenix 8
4.5

The button-plus-touch setup was praised for flexibility and ease, giving users reliable control during workouts.

call handling
Product 1: Garmin Forerunner 965
2.7

Call handling is inconsistent across reviews. One source says calls can be answered via a paired phone, while others explicitly note missing call functionality compared with Garmin’s more smartwatch-focused models.

Product 2: Garmin Fenix 8
2.7

Calls work, but audio quality is a compromise: reviewers noted quiet speaker output and less-than-ideal voice clarity.

calorie tracking usefulness
Product 1: Garmin Forerunner 965
3.1

Calorie tracking is only modestly useful. Calories are visible in daily metrics, but one review says users wanting stronger calorie and intake support should look elsewhere.

Product 2: Garmin Fenix 8
No score yet
charging convenience
Product 1: Garmin Forerunner 965
2.5

Charging convenience is a weak point because Garmin still uses a proprietary connector, and reviewers call the port connection delicate while also noting the lack of wireless charging.

Product 2: Garmin Fenix 8
3.2

Charging remains dependable, but the proprietary pin cable was seen as less convenient than magnetic chargers.

charging speed
Product 1: Garmin Forerunner 965
4.7

Charging speed is good, with reviewers citing roughly an hour to reach high percentages and quick top-ups that provide meaningful battery in minutes.

Product 2: Garmin Fenix 8
4.3

Charging speed is solid, with one reviewer reporting roughly a one-hour full charge.

coaching features
Product 1: Garmin Forerunner 965
4.5

Coaching features are strong, with suggested workouts, race prediction, and readiness-style guidance giving the watch a helpful training-assistant feel.

Product 2: Garmin Fenix 8
4.2

Garmin’s coaching layer is useful, with structured strength plans and workout guidance expanding the training toolkit.

comfort
Product 1: Garmin Forerunner 965
4.5

Comfort is a strength for most users thanks to the light, slim build and wearable design, though the large case can still be noticeable for some sleepers or smaller wrists.

Product 2: Garmin Fenix 8
3.6

Comfort is good for many users, but the larger case and weight can feel bulky, especially on smaller wrists.

companion app quality
Product 1: Garmin Forerunner 965
3.9

Companion app quality is mixed. Garmin Connect is praised for depth and data access, but several reviewers also call it confusing or poorly organized in places.

Product 2: Garmin Fenix 8
4.9

Garmin Connect was one of the strongest positives, praised as stellar, comprehensive, and best-in-class.

contactless payments
Product 1: Garmin Forerunner 965
3.7

Contactless payments are available through Garmin Pay, but real-world usefulness depends heavily on bank support, which several reviewers say is still uneven.

Product 2: Garmin Fenix 8
4.0

Contactless payment support is available and adds to the watch’s everyday convenience.

cross-platform compatibility
Product 1: Garmin Forerunner 965
4.5

Cross-platform compatibility is strong, with consistent support for both Android and iPhone across reviews.

Product 2: Garmin Fenix 8
2.8

Core phone integration works across platforms, but iPhone users face more limitations than Android users.

customization options
Product 1: Garmin Forerunner 965
4.7

Customization options are extensive, including watch faces, widgets, data pages, and other configurable on-watch and in-app elements.

Product 2: Garmin Fenix 8
4.6

Customization is a major strength, from deep settings control to broad watch-face and interface personalization.

display quality
Product 1: Garmin Forerunner 965
4.8

Display quality is one of the headline wins. The AMOLED panel is widely described as sharp, vibrant, and transformative compared with older MIP models.

Product 2: Garmin Fenix 8
4.9

The AMOLED display earned especially strong praise for its vivid, premium presentation.

durability
Product 1: Garmin Forerunner 965
3.5

Durability is mixed. Some reviewers appreciate the materials and scratch resistance expectations, but several also report real scratches and visible wear sooner than expected.

Product 2: Garmin Fenix 8
4.5

Long-term wear feedback was strong, with sapphire holding up well and the watch tolerating daily knocks.

ECG functionality
Product 1: Garmin Forerunner 965
1.5

ECG functionality is absent. Multiple reviews explicitly state that the Forerunner 965 does not include ECG hardware or support.

Product 2: Garmin Fenix 8
3.6

ECG hardware is present, but availability remains region-limited rather than universally accessible.

fit
Product 1: Garmin Forerunner 965
3.5

Fit is acceptable for many wrists but not ideal for everyone. Several reviews warn that the 47mm case can feel large on smaller wrists.

Product 2: Garmin Fenix 8
3.7

Fit benefits from multiple case sizes, though the biggest models can still feel cumbersome on smaller wrists.

fitness tracking accuracy
Product 1: Garmin Forerunner 965
4.9

Fitness tracking accuracy is a standout strength, with reviewers praising the consistency of workout metrics and the overall trustworthiness of exercise data.

Product 2: Garmin Fenix 8
4.7

General fitness and workout tracking were reviewed very positively, with strong sensor-driven exercise data.

GPS accuracy
Product 1: Garmin Forerunner 965
4.9

GPS accuracy is one of the watch’s clearest strengths, repeatedly described as spot-on, industry-leading, or nearly dead accurate in testing.

Product 2: Garmin Fenix 8
4.6

GPS performance is one of the watch’s clearest strengths, with repeated praise for fast, highly accurate tracking.

health tracking accuracy
Product 1: Garmin Forerunner 965
4.1

Health tracking accuracy is good overall but not flawless. Reviewers praise the depth and usefulness of health data, while some flag sleep-related inconsistency that affects broader health confidence.

Product 2: Garmin Fenix 8
4.2

Broader health tracking is well regarded overall, though reviewers focused more on usefulness than exhaustive lab-style validation.

heart rate accuracy
Product 1: Garmin Forerunner 965
4.6

Heart rate accuracy is strong for a wrist-based sensor, with several reviewers calling it excellent or near chest-strap performance, though interval lag can still appear.

Product 2: Garmin Fenix 8
4.3

Heart-rate accuracy is generally strong, but fast intervals and some sport-specific edge cases still trip it up.

LTE connectivity
Product 1: Garmin Forerunner 965
1.5

LTE connectivity is absent. Reviews explicitly note that the watch lacks LTE or mobile internet support.

Product 2: Garmin Fenix 8
1.2

LTE remains the biggest missing hardware feature, and reviewers repeatedly flagged its absence.

materials quality
Product 1: Garmin Forerunner 965
4.4

Materials quality is solid, with repeated mentions of titanium, Gorilla Glass, and generally premium-feeling hardware choices.

Product 2: Garmin Fenix 8
4.2

Premium materials such as titanium, steel, and sapphire reinforce the high-end feel, even if they can still show wear.

menu navigation
Product 1: Garmin Forerunner 965
4.3

Menu navigation is generally good once learned, with reviewers highlighting customizable widgets and easy menu flow, though Garmin’s depth can still feel dense at first.

Product 2: Garmin Fenix 8
3.7

Garmin’s menus are more organized than before, but reviewers still found navigation uneven and occasionally cumbersome.

music controls
Product 1: Garmin Forerunner 965
4.2

Music controls are well covered for a sports watch, with reviewers noting onboard player controls and convenient workout use.

Product 2: Garmin Fenix 8
3.0

Music controls are available during activities, though one reviewer disliked being stuck with the extra music page.

onboard music storage
Product 1: Garmin Forerunner 965
4.5

Onboard music storage is a strength thanks to offline music support and ample storage for playlists, maps, and media.

Product 2: Garmin Fenix 8
4.3

Offline music support is strong, with storage for provider downloads and local files across major services.

operating system experience
Product 1: Garmin Forerunner 965
3.9

The operating system experience is capable but not always elegant. Reviewers appreciate the depth and button-first control options, yet some still describe Garmin’s interface conventions as archaic or complex.

Product 2: Garmin Fenix 8
3.5

Garmin’s OS is capable and efficient, but it still feels more limited than watchOS or Wear OS.

outdoor visibility
Product 1: Garmin Forerunner 965
4.6

Outdoor visibility is a clear positive. Reviewers say the AMOLED screen remains readable outdoors and in direct sun, even if some still prefer MIP’s look.

Product 2: Garmin Fenix 8
4.4

Outdoor readability is strong overall, with reviewers highlighting clear visibility and map legibility in real use.

pairing reliability
Product 1: Garmin Forerunner 965
4.5

Pairing reliability is strong, with quick phone pairing and dependable syncing or headphone use in the selected reviews.

Product 2: Garmin Fenix 8
4.6

Initial syncing and service pairing were smooth in testing, with no major complaints around setup reliability.

recovery insights
Product 1: Garmin Forerunner 965
4.8

Recovery insights are a major strength, especially through Training Readiness, recovery time, and related load metrics that help guide training decisions.

Product 2: Garmin Fenix 8
4.1

Recovery-oriented features such as HRV trends and morning summaries add meaningful training context.

reliability
Product 1: Garmin Forerunner 965
4.6

Reliability is broadly strong. Reviewers describe stable tracking, dependable uploads, and few serious failures in day-to-day use.

Product 2: Garmin Fenix 8
4.0

Firmware maturity appears improved, with one long-term reviewer reporting a much more stable experience after updates.

safety features
Product 1: Garmin Forerunner 965
4.4

Safety features are meaningful, with reviewers highlighting LiveTrack and fall detection as useful extras for training and outdoor use.

Product 2: Garmin Fenix 8
4.7

Safety is a strong point thanks to breadcrumb navigation, storm alerts, and backcountry-oriented guidance tools.

size options
Product 1: Garmin Forerunner 965
2.8

Size options are limited because the Forerunner 965 is effectively a one-size model, which can be restrictive for smaller-wrist users.

Product 2: Garmin Fenix 8
3.8

The Fenix 8 line offers helpful size variety, but some reviewers disliked the loss of certain smaller variant combinations.

sleep tracking accuracy
Product 1: Garmin Forerunner 965
3.7

Sleep tracking accuracy is one of the most mixed areas. Some reviewers call it excellent or improved versus older Garmins, while others say the results can feel off or inconsistent.

Product 2: Garmin Fenix 8
4.1

Sleep timing is usually accurate, especially for fall-asleep and wake times, though stage detail remains less convincing.

smartphone notifications
Product 1: Garmin Forerunner 965
3.7

Smartphone notifications work well enough for viewing alerts, but several reviews point out limitations around interaction and reply behavior, especially on iPhone.

Product 2: Garmin Fenix 8
4.1

Notifications work well and are easy to access, with useful phone-linked alerts and media support.

smartwatch features
Product 1: Garmin Forerunner 965
4.2

Smartwatch features are good for a training watch, including notifications, music, and payments, but they still trail more full-fledged smartwatches in polish and breadth.

Product 2: Garmin Fenix 8
4.2

Smartwatch tools are broader than before, with microphones, speakers, music, and other daily-use additions helping close the gap.

software smoothness
Product 1: Garmin Forerunner 965
4.7

Software smoothness is a strong point, with reviewers describing the interface as fluid and largely free of lag or stutter.

Product 2: Garmin Fenix 8
3.0

Software responsiveness is mixed: some interactions feel polished, but lag still appears in certain menus or displays.

step counting accuracy
Product 1: Garmin Forerunner 965
4.5

Step counting accuracy is strong in the selected evidence, including one low-error test result and praise for the visible real-time counter.

Product 2: Garmin Fenix 8
No score yet
stress tracking
Product 1: Garmin Forerunner 965
4.3

Stress tracking is well integrated into Garmin’s broader readiness and wellness stack, with reviewers frequently citing it as one of the useful day-to-day metrics.

Product 2: Garmin Fenix 8
3.6

Stress tracking is included in the wellness stack, though reviewers mostly mentioned it as a feature rather than validating it in depth.

style and design
Product 1: Garmin Forerunner 965
4.6

Style and design are widely praised, with the AMOLED display, slimmer body, and premium bezel helping the 965 look more modern and upscale than earlier Forerunners.

Product 2: Garmin Fenix 8
4.2

The design was seen as rugged and premium, though still undeniably large and utilitarian.

third-party app support
Product 1: Garmin Forerunner 965
4.4

Third-party app support is good, with Connect IQ apps plus integrations like Strava and TrainingPeaks adding flexibility for training and data workflows.

Product 2: Garmin Fenix 8
2.6

Third-party support exists through Connect IQ, but reviewers still see Garmin as limited compared with fuller smartwatch platforms.

touchscreen responsiveness
Product 1: Garmin Forerunner 965
4.4

Touchscreen responsiveness is generally praised, with reviewers saying touch makes navigation easy and smooth when they choose to use it.

Product 2: Garmin Fenix 8
4.4

Touch interaction is mostly strong, especially on AMOLED, and new touch-unlock behavior improves usability in workouts.

user interface
Product 1: Garmin Forerunner 965
4.6

The user interface is improved and easier on the eyes than earlier Forerunners, with smoother visuals and a more modern presentation.

Product 2: Garmin Fenix 8
3.5

The redesigned UI is more colorful and modern, but opinions remain mixed because it can still overwhelm or slow down common actions.

value for money
Product 1: Garmin Forerunner 965
3.8

Value for money is mixed. Several reviewers think the feature set can justify the price, but others say many buyers would be better served by cheaper Garmin alternatives.

Product 2: Garmin Fenix 8
2.6

Value is the watch’s weakest area: reviewers consistently praised performance but questioned the very high price.

voice assistant quality
Product 1: Garmin Forerunner 965
1.5

Voice assistant functionality is absent. Reviews explicitly note there is no voice assistant, microphone-based response system, or similar wrist voice feature.

Product 2: Garmin Fenix 8
4.0

Voice features are useful for simple commands, but the experience is still more practical than truly seamless.

watch face quality
Product 1: Garmin Forerunner 965
4.1

Watch face quality is good overall, especially visually on the AMOLED display, but some reviewers also note fewer face options than previous Garmin experiences.

Product 2: Garmin Fenix 8
4.1

Watch-face support is broad and customizable, with both built-in options and Connect IQ downloads available.

water resistance
Product 1: Garmin Forerunner 965
4.7

Water resistance is strong, with repeated confirmation of 5ATM or 50-meter suitability for swimming and everyday water exposure.

Product 2: Garmin Fenix 8
4.8

Water performance is excellent, with certified dive-ready hardware and strong confidence around swimming and recreational diving use.

wellness insights
Product 1: Garmin Forerunner 965
4.6

Wellness insights are a major selling point, with Body Battery, sleep scores, readiness-style guidance, and rest cues making daily health data more actionable.

Product 2: Garmin Fenix 8
4.2

Wellness insights are a meaningful strength, especially through HRV trends and broader recovery-oriented daily feedback.

Wi-Fi connectivity
Product 1: Garmin Forerunner 965
4.0

Wi-Fi connectivity is useful for tasks like map or music downloads, though it is not framed as especially fast or notable compared with other core features.

Product 2: Garmin Fenix 8
No score yet
workout tracking variety
Product 1: Garmin Forerunner 965
4.7

Workout tracking variety is excellent, with broad multisport coverage, triathlon support, and many workout modes ranging from yoga to golf and hiking.

Product 2: Garmin Fenix 8
4.8

Workout coverage is exceptionally broad, with reviewers highlighting the sheer range of sport profiles and activity support.