Polar Loop 2 vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Fitbit Flex vs. Huawei Band 2

 
Loop 2
G-Shock GBA800
645 Music
Flex
Band 2
 PolarLoop 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowHuaweiBand 2Remove Buy Now

Basic Info

Suggested Price$120$120$450$100$69.99
Release20152018201820132017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)2 years7 days5 days21 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA128 x 32
Sizen/a1.2 inchesNA0.91 inches
TouchNA
TypeLEDMIPLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM20 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables