Polar M400 vs. Microsoft Band 2 vs. Huawei Watch 2 vs. Casio G-Shock GBA800 vs. Garmin VivoActive 4

 
M400
Band 2
Watch 2
G-Shock GBA800
VivoActive 4
 PolarM400Remove Buy NowMicrosoftBand 2Remove Buy NowHuaweiWatch 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$200$250$350$120$349
Release20142015201720182019

Activity & Fitness

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

Battery

Duration8 hours to 30 days48 hours (without GPS)48 hours2 years8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128480 x 480260 x 260
Sizen/a1.36 inches1.38 inches1.3ionches
Touch
Typen/aCapacitative TFTP-OLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX7IP6820 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2Wear OS
Apps
Music

All Wearables