Fitbit Alta vs. Garmin Forerunner 235 vs. Garmin Vivoactive 3 vs. Fitbit Flex vs. Amazfit T-Rex

 
Alta
Forerunner 235
Vivoactive 3
Flex
T-Rex
 FitbitAltaRemove Buy NowGarminForerunner 235Remove Buy NowGarminVivoactive 3Remove Buy NowFitbitFlexRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$299.99$299$100$140
Release20162017201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days9 days7 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 180240 x 240NA360 x 360
Sizen/a1.23 inches1.2 inchesNA1.3 inches
Touchn/aNA
TypeOLEDMIPMIPLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aNABuild-in
Apps
Music

All Wearables