Polar M400 vs. Polar M600 vs. Samsung Gear S2 vs. Fitbit Flex vs. Garmin Instinct

 
M400
M600
Gear S2
Flex
Instinct
 PolarM400Remove Buy NowPolarM600Remove Buy NowSamsungGear S2Remove Buy NowFitbitFlexRemove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$200$330$300$100$300
Release20142016201520132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days2-3 days5 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240360 x 360NA128 x 128
Sizen/a1.3 inches1.2 inchesNA0.9 inches
Touchn/aNA
Typen/aTFTSuper AMOLEDLEDOMOLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX8IP681 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearTizenNA
Apps
Music

All Wearables