Pebble Time Round vs. Withings Go vs. Amazfit Stratos vs. Fitbit Flex vs. Polar Loop

 
Time Round
Go
Stratos
Flex
Loop
 PebbleTime RoundRemove Buy NowWithingsGoRemove Buy NowAmazfitStratosRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$80$199$100$100
Release20152016201820132013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 days5 days5 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/aNANA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 300NANA
Sizeroundn/a1.34 inchesNANA
Touchn/aNA
Typee-paperE-InkOLEDLEDLED

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM5 ATM1 ATM2 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemPebble OSn/aProprietaryNANA
Appsn/a
Music

All Wearables