Fitbit Charge 2 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Garmin Vivosmart 3 vs. Garmin Vivosmart 4

 
Charge 2
Ionic
Forerunner 935
Vivosmart 3
Vivosmart 4
 FitbitCharge 2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowGarminVivosmart 3Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$299$500$139.99$130
Release20162017201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ daysUp to 2 weeks5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250240 x 24064 x 12848 x 128
Sizen/a1.421.2 inchesNA0.74 inches
Touchn/a
TypeOLEDOLEDLCDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50m5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OS
Apps
Music

All Wearables