Fitbit Alta vs. Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Jawbone UP2 vs. Amazfit T-Rex

 
Alta
Flex 2
ZenWatch 3
UP2
T-Rex
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowJawboneUP2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$100$229$100$140
Release20162016201720152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days48 hours7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a400 x 400NA360 x 360
Sizen/an/a1.39 inchesNA1.3 inches
Touchn/an/aNA
TypeOLEDLEDAMOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMSplash resistant5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2NABuild-in
Apps
Music

All Wearables