Polar M430 vs. Amazfit Stratos vs. Michael Kors Grayson vs. Xiaomi Mi Band vs. Michael Kors Grayson
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| PolarM430Remove Buy Now | AmazfitStratosRemove Buy Now | Michael KorsGraysonRemove Buy Now | XiaomiMi BandRemove Buy Now | Michael KorsGraysonRemove Buy Now |
Basic Info | |||||
| Suggested Price | $255 | $199 | $350 | $15 | $350 |
| Release | 2017 | 2018 | 2018 | 2015 | 2018 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | |||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 30 hours | 5 days | 24 hours | 30 days | 24 hours |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | |||||
| Mac | NA | ||||
| Windows | NA | ||||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | |||||
| GPS | |||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | NA | ||||
| Resolution | 128x128 | 320 x 300 | 453 x 454 | NA | 453x454 |
| Size | 1.4 inch | 1.34 inches | 1.39 inches | NA | 1.39 inches |
| Touch | NA | ||||
| Type | LCD | OLED | AMOLED | NA | AMOLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | WR30 | 5 ATM | 1 ATM | IP67 | 1 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Proprietary | Android Wear | NA | Android Wear | |
| Apps | |||||
| Music | |||||