Fitbit Ionic vs. Garmin Forerunner 45 vs. Amazfit GTR vs. Garmin VivoActive 4 vs. HTC re Grip

 
Ionic
Forerunner 45
GTR
VivoActive 4
re Grip
 FitbitIonicRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy NowGarminVivoActive 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$299$199$199$349$199
Release20172019201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days7 days24 days8 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250208 x 208454 x 454260 x 260160 x 32
Size1.421.04 inches1.39 inches1.3ionches1.8 inches
Touch
TypeOLEDLCDAMOLEDMIPPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSBuilt-inBuild-inWear OSNA
Apps
Music

All Wearables