Polar M600 vs. Fitbit Zip vs. Acer Liquid Leap vs. Garmin 645 Music vs. Fitbit Flex

 
M600
Zip
Liquid Leap
645 Music
Flex
 PolarM600Remove Buy NowFitbitZipRemove Buy NowAcerLiquid LeapRemove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$330$60$90$450$100
Release20162012201520182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days6 months5 to 7 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a128 x 32240 x 240NA
Size1.3 inchesn/a1 inch1.2 inchesNA
Touchn/aNA
TypeTFTn/aOLEDMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8Splash ResistantIPX45 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aNA
Apps
Music

All Wearables