Fitbit Flex 2 vs. Polar A360 vs. Amazfit Bip vs. Garmin 645 Music vs. Polar Loop

 
Flex 2
A360
Bip
645 Music
Loop
 FitbitFlex 2Remove Buy NowPolarA360Remove Buy NowAmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$200$99.99$450$100
Release20162015201820182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days30 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a160 x 80176 x 176240 x 240NA
Sizen/a1.18 inches1.28 inches1.2 inchesNA
Touchn/a
TypeLEDn/aNAMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR30IP685 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNA
Apps
Music

All Wearables