Samsung Gear S2 vs. Polar Loop 2 vs. Casio WSD-F20A vs. Garmin 645 Music vs. Garmin Forerunner 235

 
Gear S2
Loop 2
WSD-F20A
645 Music
Forerunner 235
 SamsungGear S2Remove Buy NowPolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy Now

Basic Info

Suggested Price$300$120$399$450$299.99
Release20152015201820182017

Activity & Fitness

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

Battery

Duration2-3 days8 days (without notifications)1 day7 days9 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a320 x 320240 x 240215 x 180
Size1.2 inchesn/a1.32 inches1.2 inches1.23 inches
Touch
TypeSuper AMOLEDLEDLCDMIPMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP682 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aWear OS
Apps
Music

All Wearables