Fitbit Charge 2 vs. Diesel On Full Guard vs. Fitbit Charge 3 vs. Apple Watch Series 5 vs. Amazfit T-Rex

 
Charge 2
On Full Guard
Charge 3
Watch Series 5
T-Rex
 FitbitCharge 2Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitCharge 3Remove Buy NowAppleWatch Series 5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$325$150$329$140
Release20162017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 daysNot Yet20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a454 x 45466 x 18384 x 480360 x 360
Sizen/a1.4 inches.721 inches1.78 Inches1.3 inches
Touchn/a
TypeOLEDOMOLEDOLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP675 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NAWatchOS 5Build-in
Apps
Music

All Wearables