Compare Amazfit T-Rex Ultra 2 vs Garmin Forerunner 165

The app ecosystem lagged premium competitors, especially Garmin, with reviewers pointing to weaker ecosystem depth and external support.

The app ecosystem was useful through Connect IQ and Garmin features, but Garmin's broader platform could still feel intimidating.

Band quality was mixed: one reviewer disliked the thick rigid strap, while others liked the secure, quick-release design.

Band quality was mostly comfortable and flexible, but one reviewer warned the stock strap needs frequent washing to avoid irritation.

Battery life was the strongest consensus win, with reviewers praising slow drain, multi-week use, and unusually strong GPS endurance.

Battery life was generally good for an AMOLED Garmin and daily training, but reviewers flagged limits for long adventures, always-on use, or heavy GPS/music.

Blood oxygen tracking was treated as a useful extra by reviewers who valued the reassurance, though broader accuracy was not deeply tested.

Bluetooth/app connectivity was reliable in the Live Science test, with no disconnects or transfer problems reported.

Bluetooth headphone pairing was reported to work without problems.

Brightness was excellent, with reviewers finding the screen crisp and easy to see outdoors.

Brightness was strongly praised in sunlight and adaptive lighting conditions.

Build quality was widely praised as premium, rugged, and flagship-level, though the hardware strength contrasted with software concerns.

Build quality was viewed as solid and well-made for a lightweight running watch.

Button controls were a highlight, with glove-friendly operation and tactile, easy-to-feel buttons.

Button controls were a major strength, especially for workouts, gloves, sweat, rain, and avoiding touchscreen reliance.

Call handling was viewed as solid, with wrist calls, louder speaker output, and audible prompts reducing phone reliance.

The free Zepp food-logging feature was useful enough to reveal calorie trends and a typical daily count.

Charging convenience was positive where mentioned, thanks to the charging puck working with common USB-C cables.

Charging convenience was mixed: secure contacts helped, but the proprietary/short cable was a drawback.

Charging speed was praised in the reviews that discussed it, ranging from under two hours to very fast top-ups.

Coaching was received positively, with Zepp Coach and training advice described as helpful for planning and guidance.

Coaching and structured workouts were praised as approachable, flexible, and valuable for beginner and intermediate runners.

Comfort was the main hardware drawback: most reviewers found the watch bulky or uncomfortable for sleep, though one hands-on review found it comfortable despite the size.

Comfort was consistently excellent, with reviewers praising the lightweight feel for all-day wear and sleep.

Companion app quality was mixed, with decent connectivity but route editing, waypoint categories, and Zepp route creation needing polish.

Garmin Connect was seen as powerful and useful, with cleaner or comprehensive analysis, though one reviewer found the redesign not much easier.

Contactless-payment evidence was region-dependent: one review liked European NFC support, while others criticized limited or unavailable payment support.

Garmin Pay was viewed as a straightforward, effective contactless payment feature.

Customization was mixed: watch-face customization was praised, but case/color/size customization was limited.

Customization was a strength, from watch faces and widgets to activity screens and data pages.

Display quality was excellent, with reviewers repeatedly calling the AMOLED screen one of the best or a major upside.

Display quality was a standout strength thanks to a crisp, vibrant AMOLED screen, though one reviewer still preferred MIP for always-visible use.

Durability was excellent in the evidence, with rugged construction and real-world knocks, drops, and harsh-use confidence.

Durability was reassuring, with reviewers reporting no concerns and even real-world abuse without damage.

Fit was limiting for smaller wrists, with reviewers warning that the size and heft require a large enough wrist.

Fit was strong for many wrists, with secure wear and little slipping, though the single case size remained a caveat.

Fitness accuracy looked good where reviewers discussed tracked sport detail and elevation, but the broader evidence base was thinner than for GPS or heart rate.

Fitness tracking accuracy was praised for broad data quality and even strength-training rep counting in testing.

The flashlight was broadly useful and appreciated, especially at home or outdoors, but one reviewer said it was not practical for faster trail running.

GPS accuracy was one of the strongest areas, with repeated praise for fast, accurate positioning, solid tracks, and strong repeat-route consistency.

GPS accuracy was one of the strongest themes, with most reviewers finding reliable tracks even without dual-band GPS; a few dense-terrain issues remained.

Reviewers found the newer sensor and overnight health data generally credible, though evidence focused on broad health metrics rather than every individual vital.

Reviewers described the Forerunner 165 as having reliable sensors and detailed data collection for general health and fitness tracking.

Heart-rate evidence was split: some reviewers found it accurate or improved, while testing-heavy reviews reported cadence lock, cold-weather struggles, and poor performance during running or lifting.

Heart-rate accuracy was generally praised across runs, rides, and intervals, with only occasional optical-sensor lag or spikes.

Mapping and navigation drew the most mixed evidence: offline maps and hiking use impressed, but rerouting, cycling navigation, climb detection, and route creation had notable problems.

Mapping and navigation were useful for breadcrumb routes and GPX/course following, but the lack of full maps was a repeated limitation.

Materials felt premium, with reviewers calling out the titanium back and more durable materials.

Materials quality was mixed: plastic kept it light and affordable but felt less premium.

Menu navigation was praised as easy, helped by physical buttons and touchscreen control.

Menu navigation was considered intuitive after a short adjustment period.

Music controls were criticized as unintuitive during runs.

Onboard media was weak because reviewers noted no subscription music support and called the music feature nearly useless without streaming.

Onboard music storage drew split views: handy or smooth for some, but tedious and poor value for others.

The operating-system experience was mixed to weak: useful features exist, but reviewers criticized the lack of premium polish and unfinished software story.

The operating experience was familiar and straightforward for Garmin users.

Outdoor visibility was a standout strength, with direct-sun readability and high-brightness snow/sun performance repeatedly praised.

Outdoor visibility was excellent in direct sun and bright conditions.

Pairing reliability was strong in the available evidence, which noted no disconnects or transfer/update problems.

Pairing reliability for headphones was described as generally solid.

Recovery evidence was mixed: one review found exertion and recovery guidance useful, while another questioned the usefulness of the exertion target.

Recovery insights were useful but clearly limited versus higher Forerunners, with some reviewers calling out missing readiness/load tools or odd recovery estimates.

Reliability was mixed to poor overall: hardware seemed trustworthy, but several reviewers said key new software features did not reliably work.

Reliability was praised in workout use, with one reviewer reporting no issues with stability.

Safety features were viewed positively for outdoor use, especially features meant to keep users safe in remote environments.

Safety features such as LiveTrack were valued for sharing location during activities.

Size options were limited in the evidence, with one review calling one-size availability a downside.

Size options were limited because the watch comes in only one size, though one reviewer liked the in-between fit.

Sleep tracking was treated as middling, with one review calling scores and stages funky and another finding REM detection only average.

Sleep tracking was mostly viewed as useful and directionally accurate, though one reviewer reported a poor night that the watch missed.

Smartphone notifications were described as reliable and easier to read on the AMOLED display.

Smartwatch features were useful for basics and outdoor use, but reviewers said it was less smart than Apple and lacked premium frills.

Smartwatch features were considered respectable for a training watch, especially notifications, Garmin Pay, music features, and basic phone-linked tools.

Software smoothness was inconsistent, ranging from minor lags and improved routing to major software stumbles and unfixed core-feature problems.

Software smoothness was praised as simple, fast, and accurate in use.

Step counting was reported as close to other tested devices.

Stress tracking was mentioned as part of the watch's helpful health-glance system for knowing when to ease off.

Design opinion was split between masculine/bulky styling and praise for the more refined, attractive T-Rex look.

Style and design were viewed as slim, low-profile, sleek, and suitable for daily wear, though still sporty.

Third-party app support was a clear weakness, with limited apps and missing golf support called out.

Third-party app/widget support was available and sometimes useful for tailoring data, though one reviewer did not find it especially useful.

Touchscreen responsiveness was mostly good, though one reviewer found it overly sensitive and in need of subtlety.

Touchscreen responsiveness was widely praised, including smooth swiping, reliable taps, and usability with gloves or wet screens.

The user interface was generally easy to use, especially with the button/touch combination.

The interface was repeatedly described as simple, approachable, and easy to use.

Value was divided: reviewers praised the feature set for the price versus Garmin/Apple, but some criticized the $549 price when software felt unfinished.

Value for money was one of the strongest areas, with reviewers repeatedly calling it a high-value or sweet-spot Garmin.

Voice assistant feedback was positive, with Zepp Flow described as useful and capable of offline watch control.

Voice notes were a clear win, repeatedly described as reliable, delightful, and useful during workouts.

Watch face quality was praised for full customization.

Water resistance was treated positively, especially for scuba/dive suitability and medium-depth water survival.

Water resistance was considered more than enough for rain, sweat, showering, and swimming use.

Wellness insights were generally useful, especially BioCharge and the broad health-feature set, though not all training guidance was equally convincing.

Wellness insights such as Morning Report and Body Battery were considered fun, useful, and sometimes addictive.

Wi-Fi/music setup drew criticism when troubleshooting made the watch appear connected even though playlist syncing failed.

Reviewers strongly praised the large workout library, especially niche outdoor and adventure modes, while noting most people will use only a subset.

Workout variety covers most mainstream running, gym, cycling, swimming, and fitness needs, but reviewers consistently noted missing triathlon or backcountry profiles.