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

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

Basic Info

Suggested Price$200$100$170$150$180
Release20142016201520142019

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days5 days1 day2 DAYS
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a160 x 68320 x 260400 x 400
Sizen/an/a1.08 inches1.56 inches1.39 inches
Touchn/a
Typen/aLEDn/aLCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid WearWear OS
Apps
MusicNA

All Wearables