Samsung Gear S vs. Samsung Gear S2 vs. Polar M430 vs. Fitbit Charge vs. Fitbit Flex

 
Gear S
Gear S2
M430
Charge
Flex
 SamsungGear SRemove Buy NowSamsungGear S2Remove Buy NowPolarM430Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$250$300$255$130$100
Release20132015201720142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a2-3 days30 hours7-10 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution480 x 360360 x 360128x128NANA
Size2 inches1.2 inches1.4 inchNANA
TouchNANA
TypeSuper AMOLEDSuper AMOLEDLCDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IP68WR301 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizenNANA
Apps
Music

All Wearables