Fitbit Ionic vs. Amazfit Stratos vs. Garmin Vivofit 4 vs. Garmin Forerunner 45 vs. HTC re Grip

 
Ionic
Stratos
Vivofit 4
Forerunner 45
re Grip
 FitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowGarminVivofit 4Remove Buy NowGarminForerunner 45Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$299$199$79.95$199$199
Release20172018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 days1 year7 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 30088 x 88208 x 208160 x 32
Size1.421.34 inchesNA1.04 inches1.8 inches
Touch
TypeOLEDOLEDNALCDPMOLED

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 OSProprietaryBuilt-inNA
Apps
Music

All Wearables