Polar M400 vs. Apple Watch Series 2 vs. Samsung Live vs. Swatch Touch Zero One vs. Amazfit T-Rex
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| PolarM400Remove Buy Now | AppleWatch Series 2Remove Buy Now | SamsungLiveRemove Buy Now | SwatchTouch Zero OneRemove Buy Now | AmazfitT-RexRemove Buy Now |
Basic Info | |||||
| Suggested Price | $200 | $269 | $200 | $220 | $140 |
| Release | 2014 | 2016 | 2014 | 2015 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | n/a | ||||
| Oxygen | |||||
| Sleep | n/a | ||||
| Steps | |||||
| Swim | n/a | ||||
Battery | |||||
| Duration | 8 hours to 30 days | 18 hours | 1 Day | n/a | 20 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | n/a | ||||
| iOS | n/a | ||||
| Windows Phone | n/a | NA | n/a | ||
| Mac | NA | n/a | |||
| Windows | NA | n/a | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | n/a | 340 x 272 or 390 x 312 | 320 x 320 | n/a | 360 x 360 |
| Size | n/a | 1.5 inches or 1.65 inches | 1.63 inches | n/a | 1.3 inches |
| Touch | |||||
| Type | n/a | AMOLED | Super AMOLED | n/a | AMOLED |
Functions | |||||
| Audio Speaker | Alerts only | n/a | |||
| Clock | |||||
| Phone | n/a | ||||
| Vibration | NA | n/a | |||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | n/a | ||||
| Ultraviolet Sensor | |||||
| Water Resistance | 3 ATM | 5ATM | IP67 | 5 ATM | |
Notifications | |||||
| Phone | n/a | ||||
| Emails | n/a | ||||
| Texts | n/a | ||||
Software | |||||
| Operating System | n/a | Watch OS | Android Wear | n/a | Build-in |
| Apps | |||||
| Music | n/a | ||||