Apple Watch Series 3 vs. Fitbit Charge 2 vs. Jawbone UP3 vs. Apple Watch Series 4 vs. Amazfit T-Rex

 
Watch Series 3
Charge 2
UP3
Watch Series 4
T-Rex
 AppleWatch Series 3Remove Buy NowFitbitCharge 2Remove Buy NowJawboneUP3Remove Buy NowAppleWatch Series 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$150$180$329$140
Release20172016201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days7 daysNot Yet20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/aNA384 x 480360 x 360
Size1.5 inches or 1.65 inchesn/aNA1.78 inches1.3 inches
Touchn/aNA
TypeAMOLEDOLEDNAMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/aNANot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aNAWatch OS 5Build-in
Apps
MusicNA

All Wearables