Samsung Gear S2 vs. Polar A360 vs. Polar Loop 2 vs. Apple Watch Series 4 vs. Xiaomi Mi Band 4
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| SamsungGear S2Remove Buy Now | PolarA360Remove Buy Now | PolarLoop 2Remove Buy Now | AppleWatch Series 4Remove Buy Now | XiaomiMi Band 4Remove Buy Now |
Basic Info | |||||
| Suggested Price | $300 | $200 | $120 | $329 | $25 |
| Release | 2015 | 2015 | 2015 | 2018 | 2019 |
Activity & Fitness | |||||
| Calories | |||||
| Cycling (Bicycling) | |||||
| Distance | |||||
| Heart | n/a | ||||
| Oxygen | |||||
| Sleep | |||||
| Steps | |||||
| Swim | |||||
Battery | |||||
| Duration | 2-3 days | 12 days | 8 days (without notifications) | Not Yet | 20 days |
| Rechargeable | |||||
Compatibility | |||||
| Android | |||||
| iOS | |||||
| Windows Phone | n/a | n/a | n/a | ||
| Mac | n/a | n/a | |||
| Windows | n/a | n/a | |||
Connectivity | |||||
| Bluetooth | |||||
| Cellular | n/a | ||||
| GPS | n/a | ||||
| NFC | |||||
| Wi-Fi | |||||
Display | |||||
| Color | |||||
| Resolution | 360 x 360 | 160 x 80 | n/a | 384 x 480 | 120x240 |
| Size | 1.2 inches | 1.18 inches | n/a | 1.78 inches | 0.95 inches |
| Touch | |||||
| Type | Super AMOLED | n/a | LED | MicroLED | AMOLED |
Functions | |||||
| Audio Speaker | |||||
| Clock | |||||
| Phone | |||||
| Vibration | |||||
| Voice | |||||
Hardware | |||||
| Accelerometer | |||||
| Barometer or Altimeter | |||||
| Ultraviolet Sensor | |||||
| Water Resistance | IP68 | WR30 | 2 ATM | Not Yet | 5 ATM |
Notifications | |||||
| Phone | |||||
| Emails | |||||
| Texts | |||||
Software | |||||
| Operating System | Tizen | n/a | n/a | Watch OS 5 | AMAZFIT OS |
| Apps | |||||
| Music | |||||