Fitbit Ionic vs. Huawei Watch 2 vs. Garmin 645 Music vs. Fitbit Charge HR vs. Amazfit GTR

 
Ionic
Watch 2
645 Music
Charge HR
GTR
 FitbitIonicRemove Buy NowHuaweiWatch 2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge HRRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$299$350$450$150$199
Release20172017201820152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days48 hours7 days5 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250480 x 480240 x 240NA454 x 454
Size1.421.38 inches1.2 inchesNA1.39 inches
TouchNA
TypeOLEDP-OLEDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mIP685 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSAndroid Wear 2NABuild-in
Apps
Music

All Wearables