Fitbit Flex vs. Jawbone UP4 vs. Garmin Forerunner 45 vs. Amazfit GTS

 
Flex
UP4
Forerunner 45
GTS
 FitbitFlexRemove Buy NowJawboneUP4Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$200$199$150
Release2013201520192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysNA7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNANA208 x 208348 x 442
SizeNANA1.04 inches1.65 inches
TouchNANA
TypeLEDNALCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMNA5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNANABuilt-inWear OS
Apps
MusicNA

All Wearables