Polar M400 vs. Sony SmartWatch 3 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Mobvoi TicWatch C2

 
M400
SmartWatch 3
645 Music
Alta HR
TicWatch C2
 PolarM400Remove Buy NowSonySmartWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowMobvoiTicWatch C2Remove Buy Now

Basic Info

Suggested Price$200$250$450$150$200
Release20142014201820172018

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days7 days7 days2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320240 x 240128 x 36360 x 360
Sizen/a1.6 inches1.2 inches1.4 inches1.3 inches
Touch
Typen/aTFT LCDMIPOLEDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATMIP68

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OS
Apps
Music

All Wearables