Polar M400 vs. Acer Liquid Leap vs. Michael Kors Access Sofie vs. Pebble Time 2 vs. Jawbone UP4

 
M400
Liquid Leap
Access Sofie
Time 2
UP4
 PolarM400Remove Buy NowAcerLiquid LeapRemove Buy NowMichael KorsAccess SofieRemove Buy NowPebbleTime 2Remove Buy NowJawboneUP4Remove Buy Now

Basic Info

Suggested Price$200$90$395$199$200
Release20142015201720162015

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 to 7 days1 day10 daysNA
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 32390 x 390 1.19 inchesNANA
Sizen/a1 inchNANA
TouchAMOLDEDNA
Typen/aOLEDe-paperNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX41 ATM3 ATMNA

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0Pebble OSNA
Apps
MusicNA

All Wearables