Polar Loop 2 vs. Fitbit Ionic vs. Garmin Forerunner 935 vs. Asus VivoWatch vs. Amazfit GTR

 
Loop 2
Ionic
Forerunner 935
VivoWatch
GTR
 PolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 935Remove Buy NowAsusVivoWatchRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$120$299$500$160$199
Release20152017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)4+ daysUp to 2 weeks24 hours to 10 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250240 x 240128 x 128454 x 454
Sizen/a1.421.2 inchesNA1.39 inches
Touch
TypeLEDOLEDLCDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance2 ATM50m5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSKoodOSBuild-in
Apps
Music

All Wearables