Pebble Time Pebble Time Steel Polar M400 Withings Activite Pop
  Pebble Time Remove Buy Now Pebble Time Steel Remove Buy Now Polar M400 Remove Buy Now Withings Activite Pop Remove Buy Now

Basic Info

Suggested Price $150 $250 $200 $150
Release 2015 2015 2014 2015

Activity & Fitness

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

Battery

Duration 7 days 10 days 8 hours to 30 days 8 months
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a n/a n/a
Mac n/a n/a n/a
Windows n/a n/a n/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 168 x 144 168 x 144 n/a n/a
Size 1.26 inches 1.26 inches n/a 1.3 inches
Touch
Type e-paper e-paper n/a Analog

Functions

Audio Speaker Alerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5 ATM 5 ATM 3 ATM 5 ATM

Notifications

Phone
Emails
Texts

Software

Operating System Pebble OS Pebble OS n/a n/a
Apps
Music