Fitbit Flex 2 vs. Fitbit Zip vs. Fitbit Alta HR vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
Flex 2
Zip
Alta HR
Inspire HR
T-Rex
 FitbitFlex 2Remove Buy NowFitbitZipRemove Buy NowFitbitAlta HRRemove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$60$150$99$140
Release20162012201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days6 months7 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a128 x 36139 x 60360 x 360
Sizen/an/a1.4 inches1.4 inches1.3 inches
Touchn/a
TypeLEDn/aOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplash Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aFitbit OSBuild-in
Apps
Music

All Wearables