Fitbit Ionic vs. Fitbit Flex vs. Jawbone UP24 vs. Amazfit GTS vs. Amazfit T-Rex

 
Ionic
Flex
UP24
GTS
T-Rex
 FitbitIonicRemove Buy NowFitbitFlexRemove Buy NowJawboneUP24Remove Buy NowAmazfitGTSRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$299$100$130$150$140
Release20172013201320192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 days14 days14 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250NANA348 x 442360 x 360
Size1.42NANA1.65 inches1.3 inches
TouchNANA
TypeOLEDLEDNAAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m1 ATMSplash Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNANAWear OSBuild-in
Apps
Music

All Wearables