Microsoft Band 2 vs. Polar A370 vs. Apple Watch Series 4 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex
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| MicrosoftBand 2Remove Buy Now | PolarA370Remove Buy Now | AppleWatch Series 4Remove Buy Now | GarminVivosmart 4Remove Buy Now | AmazfitT-RexRemove Buy Now |
Basic Info | |||||
| Suggested Price | $250 | $179.95 | $329 | $130 | $140 |
| Release | 2015 | 2017 | 2018 | 2018 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 48 hours (without GPS) | Up to 3 days | Not Yet | 7 days | 20 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | |||||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 320 x 128 | 160 x 80 | 384 x 480 | 48 x 128 | 360 x 360 |
| Size | 1.36 inches | 1.18 inches | 1.78 inches | 0.74 inches | 1.3 inches |
| Touch | |||||
| Type | Capacitative TFT | TFT LCD | MicroLED | OLED | AMOLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IPX7 | WR30 | Not Yet | 5 ATM | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | n/a | Watch OS 5 | Build-in | ||
| Apps | |||||
| Music | |||||