Diesel On Full Guard vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Jawbone UP4 vs. Amazfit T-Rex

 
On Full Guard
Forerunner 235
Flex
UP4
T-Rex
 DieselOn Full GuardRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowJawboneUP4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$325$299.99$100$200$140
Release20172017201320152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day9 days5 daysNA20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution454 x 454215 x 180NANA360 x 360
Size1.4 inches1.23 inchesNANA1.3 inches
TouchNANA
TypeOMOLEDMIPLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATMNA5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2.0NANABuild-in
Apps
MusicNA

All Wearables