Motorola Moto 360 (2nd Gen) vs. Pebble Time Steel vs. Polar M400 vs. Sony SmartBand vs. Apple Watch Series 4

 
Moto 360 (2nd Gen)
Time Steel
M400
SmartBand
Watch Series 4
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPebbleTime SteelRemove Buy NowPolarM400Remove Buy NowSonySmartBandRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$300$250$200$100$329
Release20152015201420142018

Activity & Fitness

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

Battery

Duration1.5 days10 days8 hours to 30 days5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution360 x 325 or 360 x 330168 x 144n/aNA384 x 480
Size1.37 inches or 1.56 inches1.26 inchesn/aNA1.78 inches
TouchNA
TypeLCDe-papern/aNAMicroLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM3 ATMIP58Not Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearPebble OSn/aNAWatch OS 5
Apps
Musicn/a

All Wearables