Fitbit Ionic vs. Garmin Forerunner 935 vs. Amazfit GTR vs. Apple Series 6

 
Ionic
Forerunner 935
GTR
Series 6
 FitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowAmazfitGTRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$299$500$199$399
Release2017201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ daysUp to 2 weeks24 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240454 x 454384 x 480
Size1.421.2 inches1.39 inches40mm
Touch
TypeOLEDLCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance50m5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSBuild-inWatchOS 5
Apps
Music

All Wearables