Fitbit Alta vs. Samsung Gear Fit2 vs. Fitbit Flex vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex

 
Alta
Gear Fit2
Flex
On Full Guard 2.5
T-Rex
 FitbitAltaRemove Buy NowSamsungGear Fit2Remove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$180$100$325$140
Release20162016201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3-4 days5 days4 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a432 x 216NA454x454360 x 360
Sizen/a1.5 inchesNA1.39 inches1.3 inches
Touchn/aNA
TypeOLEDSuper AMOLEDLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP681 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aTizenNAWear OSBuild-in
Apps
Music

All Wearables