Garmin Forerunner 235 vs. Fitbit Alta HR vs. Garmin Vivosmart 4 vs. Amazfit T-Rex vs. HTC re Grip

 
Forerunner 235
Alta HR
Vivosmart 4
T-Rex
re Grip
 GarminForerunner 235Remove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$299.99$150$130$140$199
Release20172017201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration9 days7 days7 days20 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180128 x 3648 x 128360 x 360160 x 32
Size1.23 inches1.4 inches0.74 inches1.3 inches1.8 inches
Touch
TypeMIPOLEDOLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemBuild-inNA
Apps
Music

All Wearables