Polar M400 vs. Mobvoi TicWatch S vs. Fitbit Alta HR vs. Garmin Vivofit 4

 
M400
TicWatch S
Alta HR
Vivofit 4
 PolarM400Remove Buy NowMobvoiTicWatch SRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$200$199$150$79.95
Release2014201720172018

Activity & Fitness

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

Battery

Duration8 hours to 30 days1.5-2 days7 days1 year
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400128 x 3688 x 88
Sizen/a1.4 inches1.4 inchesNA
Touch
Typen/aOLEDOLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0
Apps
Music

All Wearables