Apple Watch Series 3 vs. Amazfit Bip vs. Fitbit Charge HR vs. Amazfit T-Rex

 
Watch Series 3
Bip
Charge HR
T-Rex
 AppleWatch Series 3Remove Buy NowAmazfitBipRemove Buy NowFitbitCharge HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$99.99$150$140
Release2017201820152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours30 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312176 x 176NA360 x 360
Size1.5 inches or 1.65 inches1.28 inchesNA1.3 inches
TouchNA
TypeAMOLEDNAOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP681 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4NABuild-in
Apps
Music

All Wearables