In depth comparison and review of Amazfit T-Rex Pro and Garmin Forerunner 55. 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 | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Product Type | Smart watch | Sport watch |
|---|---|---|
| Supported Host Device OS | iOS 10 or later, Android 5.0 (Lollipop) or later | iOS, Android |
| Activity/Sport | Multisport | - |
| Wearing Style | Watch style | Watch style |
| Width | - | 42 mm |
| Height | - | 42 mm |
| Depth | - | 11.6 mm |
| Weight | - | 37 g |
| Body Details | With band: 59.4 g | - |
| Body Material | Polycarbonate | - |
| Protection | Water-resistant, temperature protection, salt fog protection, freezeproof | Waterproof |
| Colours | Desert grey | Monterra grey |
| Clock Display | Yes | Yes |
| FEATURES | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Sensors | Ambient light sensor, 3-axis gyro sensor, geomagnetic sensor, barometric altimeter, 3-axis accelerometer, BioTracker 2 PPG biological tracking optical sensor | Accelerometer, optical heart sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, sleep activity, heart rate, blood oxygen saturation | Distance, time, speed, calories burned, sleep activity, heart rate, stress level |
| Goal Setting | Yes | Yes |
| Features | Music remote handling, event reminders | Music remote handling, idle alert, Garmin Connect compatible, Body Battery |
| Notifications | SMS, incoming calls, applications | Calendar, Email, social apps |
| Vibrating Alert | Yes | Yes |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS receiver |
| CONNECTIVITY | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Wireless Interface | Bluetooth 5.0 | Bluetooth, ANT+ |
|---|
| DISPLAY | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Type | AMOLED - colour | Memory-in-Pixel LCD - colour - transflective |
|---|---|---|
| Resolution | 360 x 360 pixels | 208 x 208 pixels |
| Screen Size | 1.3" | 1.04" |
| Screen Protection | Tempered glass | Chemically strengthened glass |
| Always On Display (AOD) | Yes | - |
| INPUT DEVICE | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Type | Touch sensitive screen | Touch buttons |
|---|
| CASE | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Case Shape | Round | Round |
|---|---|---|
| Case Details | Meteorite black | Steel blue | Black | White | Aqua green |
| BAND | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Band Type | Band | Band |
|---|---|---|
| Band Width | 22 mm | - |
| Changeable | - | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Silicone rubber | Silicone |
| Band Colour | Meteorite black | Blue steel | Black | White | Aqua green |
| BATTERY | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Capacity | 390 mAh | - |
| Battery Life | 18 day(s) | 14 day(s) |
| Battery Life Details | Typical usage - up to 18 days Heavy usage - up to 9 days GPS mode - up to 40 hour(s) |
GPS mode - up to 20 hour(s) Smartwatch mode - up to 14 days |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | 1.5 hour(s) | - |
| MISCELLANEOUS | Amazfit T-Rex Pro | Garmin Forerunner 55 |
|---|
| Included Accessories | Magnetic charging dock | Charging/data cable |
|---|---|---|
| Max Depth of Water Resistance | 100 m | 50 m |
| Max Operating Temperature | 70 °C | - |
| Min Operating Temperature | -40 °C | - |
| Warranty | 1-year warranty | 1-year warranty |
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