Polar M600 vs. Microsoft Band 2 vs. Sony SmartBand 2 vs. Fitbit Flex vs. Apple Watch Series 4

 
M600
Band 2
SmartBand 2
Flex
Watch Series 4
 PolarM600Remove Buy NowMicrosoftBand 2Remove Buy NowSonySmartBand 2Remove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$330$250$130$100$329
Release20162015201520132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days48 hours (without GPS)2 days5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240320 x 128n/aNA384 x 480
Size1.3 inches1.36 inchesn/aNA1.78 inches
Touchn/an/aNA
TypeTFTCapacitative TFTn/aLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IPX7IP581 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aNAWatch OS 5
Apps
Music

All Wearables