Polar M400 vs. Samsung Gear S2 vs. Michael Kors Grayson vs. Samsung Gear 2 vs. Michael Kors Grayson vs. Amazfit T-Rex
PolarM400Remove Buy Now | SamsungGear S2Remove Buy Now | Michael KorsGraysonRemove Buy Now | SamsungGear 2Remove Buy Now | Michael KorsGraysonRemove Buy Now | AmazfitT-RexRemove Buy Now |
Basic Info | ||||||
Suggested Price | $200 | $300 | $350 | $300 | $350 | $140 |
Release | 2014 | 2015 | 2018 | 2014 | 2018 | 2019 |
Activity & Fitness | ||||||
Calories | ||||||
Cycling (Bicycling) | ||||||
Distance | ||||||
Heart | n/a | |||||
Oxygen | ||||||
Sleep | ||||||
Steps | NA | |||||
Swim | ||||||
Battery | ||||||
Duration | 8 hours to 30 days | 2-3 days | 24 hours | 2-3 days | 24 hours | 20 days |
Rechargeable | ||||||
Compatibility | ||||||
Android | ||||||
iOS | ||||||
Windows Phone | n/a | n/a | NA | |||
Mac | n/a | NA | ||||
Windows | n/a | NA | ||||
Connectivity | ||||||
Bluetooth | ||||||
Cellular | n/a | |||||
GPS | n/a | |||||
NFC | ||||||
Wi-Fi | ||||||
Display | ||||||
Color | ||||||
Resolution | n/a | 360 x 360 | 453 x 454 | 320 x 320 | 453x454 | 360 x 360 |
Size | n/a | 1.2 inches | 1.39 inches | 1.63 inches | 1.39 inches | 1.3 inches |
Touch | ||||||
Type | n/a | Super AMOLED | AMOLED | Super AMOLED | AMOLED | AMOLED |
Functions | ||||||
Audio Speaker | Alerts only | Bluetooth | ||||
Clock | ||||||
Phone | ||||||
Vibration | ||||||
Voice | ||||||
Hardware | ||||||
Accelerometer | ||||||
Barometer or Altimeter | ||||||
Ultraviolet Sensor | ||||||
Water Resistance | 3 ATM | IP68 | 1 ATM | IP67 | 1 ATM | 5 ATM |
Notifications | ||||||
Phone | ||||||
Emails | ||||||
Texts | ||||||
Software | ||||||
Operating System | n/a | Tizen | Android Wear | Tizen OS | Android Wear | Build-in |
Apps | ||||||
Music |