Apple Watch Series 2 vs. Fitbit Alta HR vs. Fitbit Charge vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
Watch Series 2
Alta HR
Charge
Inspire HR
T-Rex
 AppleWatch Series 2Remove Buy NowFitbitAlta HRRemove Buy NowFitbitChargeRemove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$269$150$130$99$140
Release20162017201420192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours7 days7-10 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 312128 x 36NA139 x 60360 x 360
Size1.5 inches or 1.65 inches1.4 inchesNA1.4 inches1.3 inches
TouchNA
TypeAMOLEDOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNAFitbit OSBuild-in
Apps
Music

All Wearables