Fitbit Flex 2 vs. Polar A360 vs. Amazfit Stratos vs. Asus ZenWatch vs. Polar Loop

 
Flex 2
A360
Stratos
ZenWatch
Loop
 FitbitFlex 2Remove Buy NowPolarA360Remove Buy NowAmazfitStratosRemove Buy NowAsusZenWatchRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$200$199$150$100
Release20162015201820142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days5 daysNA5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 80320 x 300320 x 320NA
Sizen/a1.18 inches1.34 inches1.63 inchesNA
Touchn/a
TypeLEDn/aOLEDAMOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR305 ATMIP552 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/an/aProprietaryAndroid WearNA
Apps
Music

All Wearables