Polar M400 vs. Withings Activite Steel vs. Mobvoi TicWatch S2 vs. Mobvoi TicWatch e2 vs. HTC re Grip

 
M400
Activite Steel
TicWatch S2
TicWatch e2
re Grip
 PolarM400Remove Buy NowWithingsActivite SteelRemove Buy NowMobvoiTicWatch S2Remove Buy NowMobvoiTicWatch e2Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$200$170$180$200$199
Release20142015201920192020

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 months2 DAYS1 day5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a400 x 400360 x 360160 x 32
Sizen/a1.3 inches1.39 inches1.2 inches1.8 inches
Touch
Typen/aAnalogOLEDAMOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATMIP68IP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWear OSNA
Apps
Music

All Wearables