Fitbit Flex 2 vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Huawei Band 3 Pro vs. Amazfit T-Rex

 
Flex 2
Flex
Forerunner 45
Band 3 Pro
T-Rex
 FitbitFlex 2Remove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowHuaweiBand 3 ProRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$100$199$70$140
Release20162013201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days12 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/aNA208 x 208454 x 454360 x 360
Sizen/aNA1.04 inches1.39 inches1.3 inches
Touchn/aNA
TypeLEDLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inAMAZFIT OSBuild-in
Apps
Music

All Wearables