| key specs |
| Display Size | 38mm | 30mm |
| Ideal For | Unisex | Unisex |
| Strap Colour | - | Powder Gray, Black, Shale Gray |
| Compatible OS | - | Android, iOS |
| Dial Shape | - | Round |
| general |
| Brand | Amazfit | Garmin |
| Model | T-Rex Ultra 2 | Fenix 6S |
| Release date | February 20, 2026 | November 1, 2019 |
| Model Name | Amazfit T-Rex Ultra 2 | Fenix 6S |
| Dial Colour | Black | Rose Gold tone, Carbon Gray DLC, Light Gold tone, Silver |
| Size | Regular | Regular |
| Touchscreen | 1.5 | Yes |
| Water Resistant | 10 ATM | Yes |
| Usage | Regular | Outdoor |
| Ideal For | Unisex | Unisex |
| Dial Shape | - | Round |
| Interchangeable Strap | - | Yes |
| Water Resistance Depth | - | 10 ATM |
| Dial Material | - | stainless steel or Diamond-like Carbon (DLC) coated steel |
| Strap Colour | - | Powder Gray, Black, Shale Gray |
| dimensions |
| Width | 51 | 42 |
| Height | 51 | 42 |
| Diameter | 14.3 | 30.4 |
| Weight (g) | 89.20 | 61.00 |
| Thickness | - | 13.8 |
| product details |
| Sensor | acceleration sensor, gyroscope, geomagnetic sensor, barometric altimeter, ambient light sensor, temperature sensor | Heart Rate |
| Compatible Device | Android and iOS | - |
| Battery Type | 870mAh | - |
| Battery Life | 30 Days | - |
| Closure | - | fiber-reinforced polymer with metal rear cover |
| Notification | - | Yes |
| Stand By Time | - | 9 days |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Call Features | Yes | - |
| camera and display features |
| Display Resolution | 480 x 480 | 240 x 240 |
| Display Size | 38mm | 30mm |
| Scratch Resistant | - | Yes |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Calendar | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Calorie Count | - | Yes |
| Compass | - | Yes |
| Alarm Clock | - | Yes |
| Chronograph | - | Yes |
| Other Fitness Features | - | GPS speed and distance, Sleep monitoring, Cardio workouts, Strength workouts, Automatic rep counting, Move IQ, TrueUp, All-day Stress Tracking, V02 max, |
| Other Watch Functions | - | Incident Detection, LiveTrack, Smart notifications, Find My Phone, Find My Watch, Compatible with Garmin Connect Mobile |
| platform and storage features |
| Compatible Operating System | - | Android, iOS |
| audio and video features |
| Speaker | - | Yes |