Polar M400 vs. Polar M600 vs. Fossil Explorist vs. Fitbit Flex vs. Garmin Instinct

 
M400
M600
Explorist
Flex
Instinct
 PolarM400Remove Buy NowPolarM600Remove Buy NowFossilExploristRemove Buy NowFitbitFlexRemove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$200$330$255$100$300
Release20142016201820132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days24 hours5 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240454 x454NA128 x 128
Sizen/a1.3 inches1.4 inchesNA0.9 inches
Touchn/aNA
Typen/aTFTAMOLEDLEDOMOLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX8IP671 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OSNA
Apps
Music

All Wearables