Time Time Steel M400 V800
  Pebble Time Remove Buy Now Pebble Time Steel Remove Buy Now Polar M400 Remove Buy Now Polar V800 Remove Buy Now

Basic Info

Suggested Price $150 $250 $200 $470
Release 2015 2015 2014 2014

Activity & Fitness

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

Battery

Duration 7 days 10 days 8 hours to 30 days 13 hours to 30 days
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a n/a n/a
Mac n/a n/a
Windows 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 n/a
Touch
Type e-paper e-paper n/a n/a

Functions

Audio Speaker Alerts only Alerts only
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

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

All Wearables