Polar M400 vs. Polar M430 vs. Polar A370 vs. Mobvoi TicWatch S2 vs. HTC re Grip

 
M400
M430
A370
TicWatch S2
re Grip
 PolarM400Remove Buy NowPolarM430Remove Buy NowPolarA370Remove Buy NowMobvoiTicWatch S2Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$200$255$179.95$180$199
Release20142017201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days30 hoursUp to 3 days2 DAYS5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128x128160 x 80400 x 400160 x 32
Sizen/a1.4 inch1.18 inches1.39 inches1.8 inches
Touch
Typen/aLCDTFT LCDOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMWR30WR305 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNA
Apps
Music

All Wearables