Garmin Forerunner 735XT vs. Fitbit Flex vs. Garmin Vivosmart 4 vs. Amazfit T-Rex vs. HTC re Grip

 
Forerunner 735XT
Flex
Vivosmart 4
T-Rex
re Grip
 GarminForerunner 735XTRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$450$100$130$140$199
Release20162013201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days5 days7 days20 days5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180NA48 x 128360 x 360160 x 32
Size1.23 inchesNA0.74 inches1.3 inches1.8 inches
Touchn/aNA
Typen/aLEDOLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuild-inNA
Apps
Music

All Wearables