Polar M400 vs. Motorola Moto 360 (1st Gen) vs. Samsung Gear 2 vs. Fitbit Flex vs. Garmin Vivofit 4

 
M400
Moto 360 (1st Gen)
Gear 2
Flex
Vivofit 4
 PolarM400Remove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowSamsungGear 2Remove Buy NowFitbitFlexRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$200$150$300$100$79.95
Release20142014201420132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days1 day2-3 days5 days1 year
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 260320 x 320NA88 x 88
Sizen/a1.56 inches1.63 inchesNANA
TouchNA
Typen/aLCDSuper AMOLEDLEDNA

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP67IP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearTizen OSNA
Apps
MusicNA

All Wearables