Average score
Product 1: OnePlus Watch 3
3.9
Product 2: Garmin Forerunner 165
3.9
activity auto-detection
Product 1: OnePlus Watch 3
4.2

Auto workout detection is present and at least one review called out reliable automatic detection for common activities.

Product 2: Garmin Forerunner 165
No score yet
app ecosystem
Product 1: OnePlus Watch 3
4.5

Wear OS gives the watch a broad app ecosystem, with reviewers highlighting access to many apps rather than a locked-down platform.

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: OnePlus Watch 3
3.3

Band quality is mixed: the 46mm model’s fluoro-rubber strap was viewed as solid and integrated well, while a 43mm reviewer called that model’s strap basic.

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: OnePlus Watch 3
4.4

Battery life is the standout strength, with the 46mm model repeatedly lasting about 4-5 days, though the 43mm version falls closer to 2-2.5 days per charge.

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: OnePlus Watch 3
4.5

Blood oxygen tracking is widely available, and one hands-on test explicitly found the SpO2 reading matched a reference device.

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: OnePlus Watch 3
3.9

Bluetooth connectivity is standard rather than expansive, but at least one reviewer reported stable connections with no drop or latency issues.

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: OnePlus Watch 3
4.8

Display brightness is a clear win, with multiple reviews citing the 2,200-nit panel and strong daylight readability.

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: OnePlus Watch 3
4.5

Build quality is generally praised, with reviewers describing the watch as solid and well built.

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: OnePlus Watch 3
3.7

The rotating crown and buttons are much improved overall, though one reviewer still disliked how useful the hardware buttons were 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: OnePlus Watch 3
3.5

Calls work directly from the watch and are generally serviceable, but multiple reviewers noted that speaker volume is limited.

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.

calorie tracking usefulness
Product 1: OnePlus Watch 3
2.0

Calorie tracking usefulness drew criticism in one review that said the watch awarded calorie progress too easily.

Product 2: Garmin Forerunner 165
No score yet
charging convenience
Product 1: OnePlus Watch 3
4.5

Charging convenience is strong thanks to a magnetically attached dock that seats easily and, in some reviews, a handy USB-C-based cradle design.

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: OnePlus Watch 3
4.8

Charging speed is consistently praised, with full charges often taking under an hour and short top-ups delivering a day of use.

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: OnePlus Watch 3
3.3

Coaching features are present but uneven: one review liked the exercise-intensity guidance, while another wanted more actionable tips.

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: OnePlus Watch 3
3.3

Comfort is divisive: some reviewers found the watch comfortable, but repeated complaints about bulk and wrist feel remain part of the experience.

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: OnePlus Watch 3
3.7

The OHealth companion app is generally well designed and easy to read, though setup and syncing were not seamless for every reviewer.

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: OnePlus Watch 3
4.4

Contactless payments work well through Wear OS, with reviewers reporting no major issues using wallet features.

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: OnePlus Watch 3
3.1

Compatibility is good across Android brands, but the watch is not iPhone-compatible, which sharply limits cross-platform use.

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: OnePlus Watch 3
4.3

Customization is a strength, especially for watch faces and complications, though some reviewers still wanted deeper 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: OnePlus Watch 3
4.7

Display quality is a major positive, with reviewers repeatedly calling the screen sharp, vibrant, and easy to read.

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: OnePlus Watch 3
3.7

Durability is strong on the main model thanks to high protection ratings, while the 43mm version drew complaints for cutting some durability hardware and certifications.

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: OnePlus Watch 3
3.3

ECG support is region-dependent: where enabled it works well, but North American reviewers repeatedly flagged that it is unavailable there.

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: OnePlus Watch 3
3.3

Fit depends heavily on wrist size and model choice; the 43mm improves wearability for smaller wrists, while the larger model can sit awkwardly.

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: OnePlus Watch 3
4.5

Fitness tracking accuracy is broadly improved and often trusted for general workouts, even if not every reviewer considered it best-in-class for serious athletes.

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: OnePlus Watch 3
3.8

GPS accuracy is mostly good for everyday runs and hikes, but some reviewers still saw tracking issues in dense urban conditions.

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: OnePlus Watch 3
3.8

Health tracking accuracy is improved and often described as solid, though some reviewers still ranked Samsung and Google ahead for refinement.

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: OnePlus Watch 3
3.7

Heart-rate accuracy is good for everyday exercise and often close to reference devices, but latency and under-reading can still appear during high-intensity efforts.

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: OnePlus Watch 3
1.5

LTE remains a clear weakness because the watch still lacks a cellular option.

Product 2: Garmin Forerunner 165
No score yet
materials quality
Product 1: OnePlus Watch 3
3.7

Materials are premium on the main model, with stainless steel, sapphire, and titanium frequently mentioned, but the 43mm trims some of those upscale materials.

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: OnePlus Watch 3
3.7

Menu navigation benefits from the rotating crown, but some reviewers still found the navigation flow cumbersome or unintuitive in places.

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: OnePlus Watch 3
No score yet
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: OnePlus Watch 3
4.4

Onboard storage is useful enough for local media, with reviewers specifically mentioning space for playlists, music, and podcasts.

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: OnePlus Watch 3
4.5

The dual-OS Wear OS and RTOS setup is widely viewed as effective, delivering a polished smartwatch experience without giving up endurance.

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: OnePlus Watch 3
4.8

Outdoor visibility is excellent, with multiple reviewers saying the screen stays readable in direct sunlight.

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: OnePlus Watch 3
3.4

Pairing and setup are usually straightforward, but at least one reviewer reported sync hiccups during setup.

Product 2: Garmin Forerunner 165
4.5

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

recovery insights
Product 1: OnePlus Watch 3
4.0

Recovery insights exist in a basic form through workout recovery-time guidance, but reviews do not suggest a deeply developed recovery system.

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: OnePlus Watch 3
4.2

General reliability is improved versus prior OnePlus watches, with reviewers noting fewer notification and sensor problems.

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: OnePlus Watch 3
4.2

Safety features are more competitive now thanks to additions such as fall detection, though the safety suite is still not the category leader in every review.

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: OnePlus Watch 3
3.1

Size options improved once the 43mm variant arrived, but many early and large-watch reviews still criticized the lineup for being too size-limited.

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: OnePlus Watch 3
4.4

Sleep tracking is one of the more consistently praised health features, with reviewers finding sleep timing and stage trends reasonably accurate.

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: OnePlus Watch 3
4.2

Smartphone notifications are handled well and arrive promptly, making the watch effective as an everyday alert hub.

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: OnePlus Watch 3
4.4

As a full smartwatch, the Watch 3 offers a strong feature set, especially for Android users who want apps, notifications, maps, and wallet support.

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: OnePlus Watch 3
3.9

Software smoothness is usually excellent, but a minority of reviews still described the interface as sluggish or inconsistent in spots.

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: OnePlus Watch 3
3.3

Step counting is mixed: one reviewer found it close to manual counts, while another believed it overcounted by a wide margin.

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: OnePlus Watch 3
2.8

Stress tracking is available but not especially trusted, with reviewers often describing the results as vague or inconsistent.

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: OnePlus Watch 3
3.9

Style and design are widely praised on the main model for looking like a real watch, though some 43mm impressions found the smaller variant cheaper-looking.

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: OnePlus Watch 3
4.5

Third-party app support is a strong point because Wear OS brings access to popular services like Spotify, Strava, Audible, and more.

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: OnePlus Watch 3
4.5

Touchscreen responsiveness is generally good, with reviewers noting responsive controls and little lag in normal use.

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: OnePlus Watch 3
3.5

The user interface is mostly polished, but it still divides opinion because some reviewers found it smooth while others found parts of it unintuitive.

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: OnePlus Watch 3
4.0

Value for money is strong overall, especially on the 46mm model, though some reviewers felt same-price Pixel and Galaxy alternatives were harder to beat in feature depth.

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: OnePlus Watch 3
4.1

Google Assistant support is useful and responsive enough for quick voice tasks, with at least one reviewer also praising microphone pickup.

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: OnePlus Watch 3
3.4

Watch-face quality is good overall with attractive defaults and lots of options, but video-face setup and deeper polish still drew complaints.

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: OnePlus Watch 3
4.2

Water resistance is a solid checkbox feature, with 5ATM-style swimming protection repeatedly mentioned.

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: OnePlus Watch 3
3.2

Wellness insights are more ambitious than before and sometimes helpful, but reviewers still found the score and advice inconsistent or shallow.

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: OnePlus Watch 3
3.8

Wi-Fi connectivity is available, but reviews focused more on the fact that it supplements Bluetooth rather than replacing the lack of LTE.

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: OnePlus Watch 3
4.8

Workout tracking variety is a clear strength, with repeated mentions of 100-plus activity modes and multiple pro or sport-specific modes.

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.