Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Forerunner 235 vs. Jawbone UP3 vs. Polar Loop

 
Flex 2
645 Music
Forerunner 235
UP3
Loop
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowJawboneUP3Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$450$299.99$180$100
Release20162018201720132013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days9 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240215 x 180NANA
Sizen/a1.2 inches1.23 inchesNANA
Touchn/aNA
TypeLEDMIPMIPNALED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATMNA2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANA
Apps
MusicNA

All Wearables