Average score
Product 1: Garmin Fenix 8
3.9
Product 2: Garmin Forerunner 165
3.9
activity auto-detection
Product 1: Garmin Fenix 8
2.8

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

Product 2: Garmin Forerunner 165
No score yet
app ecosystem
Product 1: 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.

Product 2: Garmin Forerunner 165
4.0

Garmin's broader software ecosystem is a positive, with Connect and Connect IQ giving the watch more depth than a barebones entry-level tracker.

band quality
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
4.0

The included band gets positive remarks for its slim silicone construction and everyday wearability.

battery life
Product 1: 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.

Product 2: Garmin Forerunner 165
3.9

Battery life is good for an AMOLED running watch and often lands near Garmin's claims, but it is not class-leading once heavy GPS use or always-on display enters the picture.

blood oxygen tracking
Product 1: 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.

Product 2: Garmin Forerunner 165
3.7

Pulse-ox support is present and useful for extra health data, but it is treated more as a nice add-on than a core reason to buy the watch.

Bluetooth connectivity
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
4.3

Bluetooth support is solid for headphones and sensor sharing, with reviewers reporting stable connections in normal use.

brightness
Product 1: Garmin Fenix 8
4.5

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

Product 2: Garmin Forerunner 165
4.5

Screen brightness is strong enough to make the display look lively and readable instead of dim or washed out.

build quality
Product 1: Garmin Fenix 8
4.6

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

Product 2: Garmin Forerunner 165
4.5

Build quality is strong for the price, with reviewers calling Garmin's overall construction dependable.

button controls
Product 1: Garmin Fenix 8
4.5

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

Product 2: Garmin Forerunner 165
4.4

The five-button layout is a real advantage for sweaty workouts and gloves, giving the watch dependable control beyond touch alone.

call handling
Product 1: Garmin Fenix 8
2.7

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

Product 2: Garmin Forerunner 165
1.5

Call features are limited because the watch lacks a microphone and speaker for taking calls directly from the wrist.

charging convenience
Product 1: Garmin Fenix 8
3.2

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

Product 2: Garmin Forerunner 165
2.5

Charging is less convenient than USB-C-on-watch designs because Garmin still relies on its proprietary cable.

charging speed
Product 1: Garmin Fenix 8
4.3

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

Product 2: Garmin Forerunner 165
4.0

Charging speed is a plus, with reviewers commonly seeing a full charge in about an hour.

coaching features
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
4.5

Coaching is a major strength, with Garmin Coach, adaptive plans, and suggested workouts giving newer runners useful structure without much friction.

comfort
Product 1: Garmin Fenix 8
3.6

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

Product 2: Garmin Forerunner 165
4.5

Comfort is a standout, with many reviewers saying the watch feels light, unobtrusive, and easy to wear all day and overnight.

companion app quality
Product 1: Garmin Fenix 8
4.9

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

Product 2: Garmin Forerunner 165
4.0

Garmin Connect is generally useful and improving, though some reviewers still find it a bit dense compared with simpler platforms.

contactless payments
Product 1: Garmin Fenix 8
4.0

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

Product 2: Garmin Forerunner 165
4.0

Garmin Pay is a convenient inclusion and works well when supported by the user's bank, adding real day-to-day usefulness during runs and errands.

cross-platform compatibility
Product 1: Garmin Fenix 8
2.8

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

Product 2: Garmin Forerunner 165
4.0

The watch works across phone platforms, though the notification experience can vary somewhat between iPhone and Android.

customization options
Product 1: Garmin Fenix 8
4.6

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

Product 2: Garmin Forerunner 165
4.3

Customization is a strong point, with editable widgets, data screens, watch faces, and settings that let users tune the experience to their preferences.

display quality
Product 1: Garmin Fenix 8
4.9

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

Product 2: Garmin Forerunner 165
4.5

The AMOLED display is a headline feature, repeatedly praised for its sharpness, color, and premium feel at this price.

durability
Product 1: Garmin Fenix 8
4.5

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

Product 2: Garmin Forerunner 165
4.5

Durability looks strong for normal training use, with reviewers calling the watch durable and noting it held up well over time.

ECG functionality
Product 1: Garmin Fenix 8
3.6

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

Product 2: Garmin Forerunner 165
1.5

ECG is a clear omission; multiple reviewers note that shoppers who need ECG or EKG features should look at pricier Garmin models.

fit
Product 1: Garmin Fenix 8
3.7

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

Product 2: Garmin Forerunner 165
4.0

Fit is generally good across typical wrists, though the single-case-size approach will not suit everyone equally.

fitness tracking accuracy
Product 1: Garmin Fenix 8
4.7

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

Product 2: Garmin Forerunner 165
4.5

Core fitness tracking is described as accurate and dependable for day-to-day activity and general training use.

GPS accuracy
Product 1: Garmin Fenix 8
4.6

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

Product 2: Garmin Forerunner 165
4.3

GPS accuracy is one of the watch's standout strengths, with repeated praise for dependable routes and mileage even without dual-band GPS.

health tracking accuracy
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
4.5

Reviewers describe the watch's sleep and workout insights as highly accurate and useful for everyday training decisions.

heart rate accuracy
Product 1: Garmin Fenix 8
4.3

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

Product 2: Garmin Forerunner 165
4.3

Heart-rate performance is generally strong, with several reviewers finding it reliable and in some cases close to chest-strap or higher-end watch readings.

LTE connectivity
Product 1: Garmin Fenix 8
1.2

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

Product 2: Garmin Forerunner 165
No score yet
materials quality
Product 1: 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.

Product 2: Garmin Forerunner 165
3.7

Materials are more functional than luxurious, leaning on polymer and plastic to keep weight low, though the glass still feels durable.

menu navigation
Product 1: Garmin Fenix 8
3.7

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

Product 2: Garmin Forerunner 165
4.0

Menu navigation is flexible because the watch can be fully operated with buttons, touch, or a mix of both.

music controls
Product 1: Garmin Fenix 8
3.0

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

Product 2: Garmin Forerunner 165
3.3

Music handling is functional but mixed: controls are handy once set up, yet several reviewers find Garmin's music experience clunky or not worth the premium.

onboard music storage
Product 1: Garmin Fenix 8
4.3

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

Product 2: Garmin Forerunner 165
3.7

Offline music support is helpful on the Music model and includes major services, but the extra cost and setup friction keep it from being an easy win.

operating system experience
Product 1: Garmin Fenix 8
3.5

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

Product 2: Garmin Forerunner 165
4.0

The watch OS feels familiar and practical, making common tasks like scrolling through menus and smart features straightforward.

outdoor visibility
Product 1: Garmin Fenix 8
4.4

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

Product 2: Garmin Forerunner 165
4.5

Outdoor visibility is excellent, with reviewers consistently able to read the screen in sunlight and other bright conditions.

pairing reliability
Product 1: Garmin Fenix 8
4.6

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

Product 2: Garmin Forerunner 165
4.5

Pairing reliability is strong for Bluetooth headphones in day-to-day use.

recovery insights
Product 1: Garmin Fenix 8
4.1

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

Product 2: Garmin Forerunner 165
4.0

Recovery Time, Training Effect, and similar post-workout guidance are useful, but the watch still lacks deeper training-readiness and load tools from higher-end models.

reliability
Product 1: Garmin Fenix 8
4.0

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

Product 2: Garmin Forerunner 165
4.5

Overall reliability is strong, with reviewers repeatedly calling the watch dependable in daily use and training.

safety features
Product 1: Garmin Fenix 8
4.7

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

Product 2: Garmin Forerunner 165
3.8

Safety features like emergency contacts, incident alerts, and phone-finding tools add meaningful utility beyond pure fitness tracking.

size options
Product 1: Garmin Fenix 8
3.8

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

Product 2: Garmin Forerunner 165
2.5

Only one size is offered, which simplifies the lineup but reduces fit choice for shoppers who prefer smaller or larger cases.

sleep tracking accuracy
Product 1: Garmin Fenix 8
4.1

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

Product 2: Garmin Forerunner 165
3.8

Sleep tracking is usually judged accurate enough for nightly timing and general recovery, though one reviewer found the sleep score too generous on a rough night.

smartphone notifications
Product 1: Garmin Fenix 8
4.1

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

Product 2: Garmin Forerunner 165
4.0

Phone notifications are easy to read and generally reliable, though they are basic smartwatch alerts rather than a full communications experience.

smartwatch features
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
3.9

Smartwatch extras like notifications, payments, music on the Music model, and safety tools are useful, but the feature set is still secondary to fitness and training.

software smoothness
Product 1: Garmin Fenix 8
3.0

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

Product 2: Garmin Forerunner 165
4.0

Software smoothness is good, with swipes and widget navigation feeling responsive rather than sluggish.

step counting accuracy
Product 1: Garmin Fenix 8
No score yet
Product 2: Garmin Forerunner 165
4.0

Step counts are reported to line up closely with comparison devices, suggesting dependable all-day step tracking.

stress tracking
Product 1: 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.

Product 2: Garmin Forerunner 165
4.0

Stress and recovery-style wellness metrics are available and helpful for day-to-day awareness, even if they are not the platform's most advanced readiness tools.

style and design
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
4.0

The design is sporty, slim, and easy to wear daily, though it favors practical training aesthetics over luxury materials.

third-party app support
Product 1: Garmin Fenix 8
2.6

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

Product 2: Garmin Forerunner 165
4.0

Connect IQ widgets, watch faces, and sync options add useful third-party flexibility, though the ecosystem is still more fitness-focused than app-heavy smartwatch rivals.

touchscreen responsiveness
Product 1: Garmin Fenix 8
4.4

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

Product 2: Garmin Forerunner 165
4.4

Touch response is consistently praised as smooth and reliable, and it works well alongside the physical controls.

user interface
Product 1: 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.

Product 2: Garmin Forerunner 165
4.3

The interface is approachable and easy to learn, which helps the Forerunner 165 feel friendlier than more intimidating Garmin options.

value for money
Product 1: Garmin Fenix 8
2.6

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

Product 2: Garmin Forerunner 165
4.3

Value is one of the Forerunner 165's biggest advantages, especially for runners who want Garmin training depth without moving up to much pricier models.

voice assistant quality
Product 1: Garmin Fenix 8
4.0

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

Product 2: Garmin Forerunner 165
1.5

Voice-assistant support is absent, so this is not a strong pick for users who want voice help from a smartwatch.

watch face quality
Product 1: Garmin Fenix 8
4.1

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

Product 2: Garmin Forerunner 165
4.0

Watch-face options are plentiful thanks to built-in designs and Connect IQ additions.

water resistance
Product 1: Garmin Fenix 8
4.8

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

Product 2: Garmin Forerunner 165
4.0

Water resistance is solid for rain, sweat, and swimming, making it suitable for everyday fitness use around water.

wellness insights
Product 1: Garmin Fenix 8
4.2

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

Product 2: Garmin Forerunner 165
4.4

Morning Report, Body Battery, HRV, and related insights are widely seen as genuinely useful for understanding recovery, sleep, and daily readiness.

Wi-Fi connectivity
Product 1: Garmin Fenix 8
No score yet
Product 2: Garmin Forerunner 165
3.3

Wi-Fi helps with music downloads and syncing on supported models, but at least one reviewer found the setup and troubleshooting process frustrating.

workout tracking variety
Product 1: Garmin Fenix 8
4.8

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

Product 2: Garmin Forerunner 165
3.9

Workout coverage is broad for common sports like running, cycling, swimming, hiking, and gym work, but missing triathlon and some niche activities limits the ceiling.