Fitbit Ionic vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Garmin Chronos vs. Garmin Vivosmart 3

 
Ionic
Forerunner 935
645 Music
Chronos
Vivosmart 3
 FitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowGarminChronosRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$299$500$450$1500$139.99
Release20172017201820182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysUp to 2 weeks7 days8 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240240 x 240218 x 21864 x 128
Size1.421.2 inches1.2 inches1.2 inchesNA
Touch
TypeOLEDLCDMIPMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATM10 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSWear OS
Apps
Music

All Wearables