Polar M400 vs. Fitbit Flex 2 vs. Motorola Moto 360 (1st Gen) vs. Fitbit Charge HR vs. Mobvoi TicWatch S2

 
M400
Flex 2
Moto 360 (1st Gen)
Charge HR
TicWatch S2
 PolarM400Remove Buy NowFitbitFlex 2Remove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowFitbitCharge HRRemove Buy NowMobvoiTicWatch S2Remove Buy Now

Basic Info

Suggested Price$200$100$150$150$180
Release20142016201420152019

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days1 day5 days2 DAYS
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 260NA400 x 400
Sizen/an/a1.56 inchesNA1.39 inches
Touchn/aNA
Typen/aLEDLCDOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATMIP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNAWear OS
Apps
MusicNA

All Wearables