Fitbit Alta vs. Garmin Fenix 5x Plus vs. Fitbit Flex vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Alta
Fenix 5x Plus
Flex
Vivosmart 4
T-Rex
 FitbitAltaRemove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$850$100$130$140
Release20162018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days20 days5 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA48 x 128360 x 360
Sizen/a1.2 inchesNA0.74 inches1.3 inches
Touchn/aNA
TypeOLEDMIPLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a10 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSNABuild-in
Apps
Music

All Wearables