Fitbit Alta HR vs. Fitbit Flex vs. Diesel On Full Guard 2.5 vs. Misfit Vapor 2 vs. Amazfit T-Rex

 
Alta HR
Flex
On Full Guard 2.5
Vapor 2
T-Rex
 FitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowMisfitVapor 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$100$325$250$140
Release20172013201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days4 days1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 36NA454x454454 x 454360 x 360
Size1.4 inchesNA1.39 inches1.42 inches1.3 inches
TouchNA
TypeOLEDLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM3 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSWear OSBuild-in
Apps
Music

All Wearables