Polar M600 vs. Fitbit Alta vs. Sony SmartBand Talk vs. Fitbit Flex vs. Apple Watch Series 4

 
M600
Alta
SmartBand Talk
Flex
Watch Series 4
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowSonySmartBand TalkRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$330$130$170$100$329
Release20162016201420132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days3 days5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a296 x 128NA384 x 480
Size1.3 inchesn/a1.4 inchesNA1.78 inches
Touchn/an/aNA
TypeTFTOLEDE InkLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/aIP681 ATMNot Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearNAWatch OS 5
Apps
Music

All Wearables