Fitbit Blaze vs. Polar M400 vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Fitbit Flex

 
Blaze
M400
Forerunner 935
645 Music
Flex
 FitbitBlazeRemove Buy NowPolarM400Remove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$200$500$450$100
Release20162014201720182013

Activity & Fitness

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

Battery

Duration5 Days8 hours to 30 daysUp to 2 weeks7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialn/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a240 x 240240 x 240NA
Sizen/an/a1.2 inches1.2 inchesNA
TouchNA
TypeLCDn/aLCDMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a3 ATM5 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNA
Apps
Music

All Wearables