Fitbit Charge 2 vs. Garmin Vivosmart HR vs. Amazfit T-Rex vs. Apple Watch 7
 | | | | |
| FitbitCharge 2Remove Buy Now | GarminVivosmart HRRemove Buy Now | AmazfitT-RexRemove Buy Now | AppleWatch 7Remove Buy Now |
Basic Info | |||||
| Suggested Price | $150 | $170 | $140 | $429 | |
| Release | 2016 | 2015 | 2019 | 2021 | |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 5 days | 5 days | 20 days | 18 Hours | |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | ||||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 160 x 68 | 360 x 360 | 396 x 484 | |
| Size | n/a | 1.08 inches | 1.3 inches | 1.9 inches | |
| Touch | n/a | ||||
| Type | OLED | n/a | AMOLED | MicroLED | |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | n/a | 5 ATM | 5 ATM | water resistant but not waterproof | |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | n/a | n/a | Build-in | WatchOS 8 | |
| Apps | |||||
| Music | |||||