Pebble Time vs. Pebble Time Steel vs. Polar M400 vs. Sony SmartBand 2 vs. Garmin Vivofit 4

 
Time
Time Steel
M400
SmartBand 2
Vivofit 4
 PebbleTimeRemove Buy NowPebbleTime SteelRemove Buy NowPolarM400Remove Buy NowSonySmartBand 2Remove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$150$250$200$130$79.95
Release20152015201420152018

Activity & Fitness

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

Battery

Duration7 days10 days8 hours to 30 days2 days1 year
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution168 x 144168 x 144n/an/a88 x 88
Size1.26 inches1.26 inchesn/an/aNA
Touchn/a
Typee-papere-papern/an/aNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATMIP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSn/an/a
Apps
Music

All Wearables