Pebble Time vs. Polar M400 vs. Polar M600 vs. Withings Activite Sapphire vs. Polar Loop 2

 
Time
M400
M600
Activite Sapphire
Loop 2
 PebbleTimeRemove Buy NowPolarM400Remove Buy NowPolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowPolarLoop 2Remove Buy Now

Basic Info

Suggested Price$150$200$330$450$120
Release20152014201620142015

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days2 days8 months8 days (without notifications)
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a240 x 240n/an/a
Size1.26 inchesn/a1.3 inches1.3 inchesn/a
Touchn/a
Typee-papern/aTFTAnalogLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIPX85 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aAndroid Wearn/an/a
Apps
Music

All Wearables