Samsung Gear S2 vs. Fitbit Charge vs. Polar A370 vs. Garmin Forerunner 45 vs. Amazfit GTR
 | | | | | |
| SamsungGear S2Remove Buy Now | FitbitChargeRemove Buy Now | PolarA370Remove Buy Now | GarminForerunner 45Remove Buy Now | AmazfitGTRRemove Buy Now |
Basic Info | |||||
| Suggested Price | $300 | $130 | $179.95 | $199 | $199 |
| Release | 2015 | 2014 | 2017 | 2019 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 2-3 days | 7-10 days | Up to 3 days | 7 days | 24 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | NA | |||
| Mac | n/a | ||||
| Windows | n/a | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | n/a | ||||
| GPS | n/a | ||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 360 x 360 | NA | 160 x 80 | 208 x 208 | 454 x 454 |
| Size | 1.2 inches | NA | 1.18 inches | 1.04 inches | 1.39 inches |
| Touch | NA | ||||
| Type | Super AMOLED | OLED | TFT LCD | LCD | AMOLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IP68 | 1 ATM | WR30 | 5 ATM | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Tizen | NA | Built-in | Build-in | |
| Apps | |||||
| Music | |||||