Apple Watch vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
Watch
Flex
Forerunner 45
Inspire HR
T-Rex
 AppleWatchRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$349$100$199$99$140
Release20152013201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days7 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312NA208 x 208139 x 60360 x 360
Size1.5 inches or 1.65 inchesNA1.04 inches1.4 inches1.3 inches
TouchNA
TypeAMOLEDLEDLCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX71 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSNABuilt-inFitbit OSBuild-in
Apps
Music

All Wearables