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

 
Watch Series 3
Bip
Inspire HR
T-Rex
Watch Ultra
 AppleWatch Series 3Remove Buy NowAmazfitBipRemove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$329$99.99$99$140$799
Release20172018201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours30 days5 days20 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312176 x 176139 x 60360 x 360502x410 pixels
Size1.5 inches or 1.65 inches1.28 inches1.4 inches1.3 inches1.92 inches
Touch
TypeAMOLEDNAOLEDAMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP685 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Fitbit OSBuild-inWatchOS 9
Apps
Music

All Wearables