Fitbit Ionic vs. Amazfit Stratos vs. Diesel On Full Guard vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Ionic
Stratos
On Full Guard
Vivosmart 4
T-Rex
 FitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowDieselOn Full GuardRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$199$325$130$140
Release20172018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 days1 day7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 300454 x 45448 x 128360 x 360
Size1.421.34 inches1.4 inches0.74 inches1.3 inches
Touch
TypeOLEDOLEDOMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATMIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSProprietaryAndroid Wear 2.0Build-in
Apps
Music

All Wearables