In depth comparison and review of Garmin fēnix 7 Sapphire Solar and Amazfit T-Rex 2. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Product Type | Sport watch | Smart watch |
|---|---|---|
| Operating System | - | Zepp OS |
| Supported Host Device OS | iOS, Android | iOS 12 or later, Android 7.0 (Nougat) or later |
| Activity/Sport | Multisport | Multisport |
| Wearing Style | Watch style | Watch style |
| Width | - | 47.1 mm |
| Height | - | 47.1 mm |
| Depth | - | 13.65 mm |
| Weight | - | 66.5 g |
| Body Details | With silicone band: 73 g Case only: 50 g |
- |
| Body Material | Titanium, fibre-reinforced polymer | Polymer |
| Protection | Water-resistant | Shockproof, water-resistant, salt fog protection, freezeproof, heat-resistant |
| Clock Display | Yes | Yes |
| FEATURES | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Sensors | Accelerometer, thermometre, gyro sensor, barometric altimeter, electromagnetic compass, optical heart sensor, Pulse Ox sensor | Accelerometer, ambient light sensor, digital compass, gyro sensor, geomagnetic sensor, barometric altimeter, BioTracker PPG 3.0 biometric sensor |
|---|---|---|
| Tracking Data | Distance, speed, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, pace, stress level, respiratory rate, active time, water balance, temperature | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation, sleep stages, stress level, menstrual cycle |
| Modes | - | 150+ sports modes |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, find phone function, VIRB control, inactivity alert, Move IQ, Find my Device, Downloadable workouts, store & play music, rejecting a call, LiveTrack, Physio TrueUp, PacePro pace guidance, solar charging, animated workouts, weather information, dual grid coordinates format, Body Battery Energy Monitor | Camera remote control, find phone function, flashlight, alarm, realtime location tracking, weather information, event reminders, PAI Health Assessment System, pomodoro timer, stopwatch timer, PeakBeats workout status algorithm, OxygenBeats algorithm, ExerSense algorithm, SomnusCare, Dual-band navigation |
| Notifications | Calendar, SMS, Email, social apps, incoming calls, high and low heart rate | Missed calls, calendar, incoming calls, applications |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Audio alert, vibration alert, visual interface | Vibration alert, visual interface |
| Navigation (GPS) | GPS/GLONASS/Galileo receiver | GPS receiver |
| Payment Technology | Garmin Pay | - |
| CONNECTIVITY | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Wireless Interface | Bluetooth, Wi-Fi, ANT+ | Bluetooth 5.0 BLE |
|---|
| DISPLAY | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Type | Memory-in-Pixel LCD - colour - transflective | AMOLED - colour |
|---|---|---|
| Resolution | 260 x 260 pixels | 454 x 454 pixels |
| Screen Size | 1.3" | 1.39" |
| Pixel Density | - | 326 ppi |
| Screen Protection | Power Sapphire | - |
| Always On Display (AOD) | - | Yes |
| INPUT DEVICE | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Type | Touch sensitive screen, push buttons | Touch sensitive screen, touch buttons |
|---|
| CASE | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Case Size | 47 mm | - |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | Titanium | - |
| Case Back | Metal | - |
| Case Details | Titanium carbon grey DLC | Mineral blue titanium | Titanium | Titanium black DLC | Ember black | Wild green | Desert khaki | Astro black and gold |
| BAND | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Band Type | Vented bracelet | Strap |
|---|---|---|
| Band Width | 22 mm | - |
| Fits Wrist with Circumference | 132-215 mm | 140-205 mm |
| Changeable | Yes | - |
| Clasp Type | Butterfly | Buckle |
| Band Material | Titanium | Silicone |
| Band Colour | Titanium carbon grey DLC | Black | Whitestone | Chestnut | Ember black | Wild green | Desert khaki |
| STORAGE | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Storage Capacity | 32 GB | - |
|---|
| BATTERY | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Capacity | - | 500 mAh |
| Battery Life | - | 24 day(s) |
| Battery Life Details | Smartwatch mode - up to 18 days Smartwatch mode (with solar) - up to 22 days Battery Saver Watch Mode - up to 57 days Battery Saver Watch Mode (with solar) - up to 173 days GPS mode - up to 57 hour(s) GPS mode (with solar) - up to 73 hour(s) All satellite systems mode - up to 40 hours All satellite systems mode (with solar) - up to 48 hours All satellite systems with music mode - up to 10 hour(s) Max Battery GPS Mode - up to 136 hour(s) Max Battery GPS Mode (with solar) - up to 289 hour(s) Expedition GPS Mode - up to 40 days Expedition GPS Mode (with solar) - up to 74 days |
Typical usage - up to 24 days Battery safe mode - up to 45 days Heavy usage - up to 10 days Accurate mode (with GPS) - up to 26 hour(s) Balanced mode (with GPS) - up to 50 hour(s) Power saving mode (with GPS) - up to 58 hour(s) Ultra-low temperature (with GPS) - up to 10 hour(s) Ultra-low temperature (without GPS) - up to 9 days |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2 hour(s) |
| MISCELLANEOUS | Garmin fēnix 7 Sapphire Solar | Amazfit T-Rex 2 |
|---|
| Included Accessories | Silicon wristband, charging/data cable | Magnetic charging dock |
|---|---|---|
| Preloaded Software | - | Zepp App |
| Compliant Standards | - | MIL-STD 810G |
| SAR Value | 0.3 W/kg (body), 0.3 W/kg (limb) | - |
| Max Depth of Water Resistance | 100 m | 100 m |
| Max Operating Temperature | 45 °C | - |
| Min Operating Temperature | -20 °C | - |
| Warranty | - | 1-year warranty |
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