Polar M400 vs. Asus ZenWatch vs. Garmin Forerunner 235 vs. Jawbone UP4 vs. Polar Loop

 
M400
ZenWatch
Forerunner 235
UP4
Loop
 PolarM400Remove Buy NowAsusZenWatchRemove Buy NowGarminForerunner 235Remove Buy NowJawboneUP4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$150$299.99$200$100
Release20142014201720152013

Activity & Fitness

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

Battery

Duration8 hours to 30 daysNA9 daysNA5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANANA
MacNANANA
WindowsNANANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320215 x 180NANA
Sizen/a1.63 inches1.23 inchesNANA
TouchNA
Typen/aAMOLEDMIPNALED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP555 ATMNA2 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNANA
Apps
MusicNA

All Wearables