Polar M400 vs. Huawei Talkband B2 vs. Fitbit Charge vs. Apple Watch 8
PolarM400Remove Buy Now | HuaweiTalkband B2Remove Buy Now | FitbitChargeRemove Buy Now | AppleWatch 8Remove Buy Now |
Basic Info | ||||
Suggested Price | $200 | $180 | $130 | $499 |
Release | 2014 | 2015 | 2014 | 2022 |
Activity & Fitness | ||||
Calories | ||||
Cycling (Bicycling) | ||||
Distance | ||||
Heart | n/a | |||
Oxygen | ||||
Sleep | ||||
Steps | ||||
Swim | ||||
Battery | ||||
Duration | 8 hours to 30 days | 3 days | 7-10 days | 18 hrs |
Rechargeable | ||||
Compatibility | ||||
Android | ||||
iOS | ||||
Windows Phone | n/a | n/a | NA | |
Mac | n/a | |||
Windows | n/a | |||
Connectivity | ||||
Bluetooth | ||||
Cellular | ||||
GPS | ||||
NFC | ||||
Wi-Fi | ||||
Display | ||||
Color | ||||
Resolution | n/a | 128 x 88 | NA | 340 x 272 or 390 x 312 |
Size | n/a | 0.73 inches | NA | 1.5 inches or 1.65 inches |
Touch | NA | |||
Type | n/a | PMOLED | OLED | AMOLED |
Functions | ||||
Audio Speaker | Alerts only | Bluetooth | ||
Clock | ||||
Phone | ||||
Vibration | ||||
Voice | ||||
Hardware | ||||
Accelerometer | ||||
Barometer or Altimeter | ||||
Ultraviolet Sensor | ||||
Water Resistance | 3 ATM | IP57 | 1 ATM | 5 ATM |
Notifications | ||||
Phone | ||||
Emails | ||||
Texts | ||||
Software | ||||
Operating System | n/a | n/a | NA | WatchOS 9 |
Apps | ||||
Music |