Withings Activite Steel vs. Polar Loop 2 vs. Polar Loop vs. Amazfit T-Rex

 
Activite Steel
Loop 2
Loop
T-Rex
 WithingsActivite SteelRemove Buy NowPolarLoop 2Remove Buy NowPolarLoopRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$120$100$140
Release2015201520132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 months8 days (without notifications)5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/aNA360 x 360
Size1.3 inchesn/aNA1.3 inches
Touch
TypeAnalogLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNABuild-in
Apps
Music

All Wearables