Garmin Forerunner 935 vs. Garmin 645 Music vs. Fitbit Flex vs. Fitbit Inspire HR vs. HTC re Grip

 
Forerunner 935
645 Music
Flex
Inspire HR
re Grip
 GarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowFitbitInspire HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$500$450$100$99$199
Release20172018201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 2 weeks7 days5 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240240 x 240NA139 x 60160 x 32
Size1.2 inches1.2 inchesNA1.4 inches1.8 inches
TouchNA
TypeLCDMIPLEDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemNAFitbit OSNA
Apps
Music

All Wearables