Fitbit Flex 2 vs. Fitbit One vs. Michael Kors Access Sofie vs. Polar A370 vs. Polar Loop

 
Flex 2
One
Access Sofie
A370
Loop
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowMichael KorsAccess SofieRemove Buy NowPolarA370Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$100$395$179.95$100
Release20162012201720172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days1 dayUp to 3 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a390 x 390 1.19 inches160 x 80NA
Sizen/an/a1.18 inchesNA
Touchn/aAMOLDED
TypeLEDOLEDTFT LCDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast Resistant1 ATMWR302 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0NA
Apps
Music

All Wearables