Fitbit Flex vs. Garmin Forerunner 45 vs. Garmin Instinct vs. Amazfit GTR

 
Flex
Forerunner 45
Instinct
GTR
 FitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowGarminInstinctRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$199$300$199
Release2013201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days14 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA208 x 208128 x 128454 x 454
SizeNA1.04 inches0.9 inches1.39 inches
TouchNA
TypeLEDLCDOMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM5 ATM10 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNABuilt-inBuild-in
Apps
Music

All Wearables