Fitbit Flex 2 vs. Garmin Vivosmart HR vs. Jawbone UP24 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Flex 2
Vivosmart HR
UP24
Vivosmart 4
T-Rex
 FitbitFlex 2Remove Buy NowGarminVivosmart HRRemove Buy NowJawboneUP24Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$170$130$130$140
Release20162015201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days14 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 68NA48 x 128360 x 360
Sizen/a1.08 inchesNA0.74 inches1.3 inches
Touchn/aNA
TypeLEDn/aNAOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMSplash Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNABuild-in
Apps
Music

All Wearables