Polar M600 vs. Fitbit Alta vs. Fitbit Zip vs. Amazfit Stratos vs. Fitbit Flex

 
M600
Alta
Zip
Stratos
Flex
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowFitbitZipRemove Buy NowAmazfitStratosRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$330$130$60$199$100
Release20162016201220182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days6 months5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/an/a320 x 300NA
Size1.3 inchesn/an/a1.34 inchesNA
Touchn/an/aNA
TypeTFTOLEDn/aOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/aSplash Resistant5 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/an/aProprietaryNA
Apps
Music

All Wearables