Fitbit Charge 2 vs. Fitbit Ionic vs. Garmin 645 Music vs. Fitbit Charge 3

 
Charge 2
Ionic
645 Music
Charge 3
 FitbitCharge 2Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge 3Remove Buy Now

Basic Info

Suggested Price$150$299$450$150
Release2016201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a348x250240 x 24066 x 18
Sizen/a1.421.2 inches.721 inches
Touchn/a
TypeOLEDOLEDMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNA
Apps
Music

All Wearables