Heart rate
YesAltimeter
YesGPS
Uses smartphone GPSWaterproofing
Water-resistantClock
YesSleep tracking
-Waterproof
-Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
YesGPS
-Waterproofing
Splash-resistantClock
YesSleep tracking
Yes Waterproof
-Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
YesGPS
YesWaterproofing
-Clock
YesSleep tracking
-Waterproof
Water-resistantCompanion app platforms
Android, iOSRAM
512 MBDisplay
1.5" Curved Super AMOLEDProcessor
Dual-core 1.0 GHz Exynos 3250Battery
200 mAh Li-ion Typical usage time: 3 to 4 days, Standby time: Up to 5 daysDisplay Resolution
1.5" Curved Super AMOLEDScreen resolution
322 pixelsAuto update
English German, Japanese, Portuguese, Spanish, French and ItalianOperating System
Tizen for WearablesWeight
3.84 ouncesConectivity
WIFI (802.11 b/g/n) and Bluetooth (Bluetooth® 4.1)ROM
4 GBBattery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
YesGPS
Uses smartphone GPSWaterproofing
-Clock
YesSleep tracking
YesWaterproof
NoCompanion app platforms
iOS, AndroidRAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
4 daysSilent alarm
YesWeight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
-GPS
YesWaterproofing
-Clock
-Sleep tracking
YesWaterproof
Waterproof (50m)Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
NoGPS
-Waterproofing
Splash resistantClock
-Sleep tracking
-Waterproof
-Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
NoGPS
NoWaterproofing
-Clock
NoSleep tracking
YesWaterproof
YesCompanion app platforms
iOS, AndroidRAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
30 daysSilent alarm
YesWeight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
YesGPS
-Waterproofing
164 ft. or 50 m.Clock
-Sleep tracking
-Waterproof
-Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
NoGPS
NoWaterproofing
Splash-resistantClock
-Sleep tracking
-Waterproof
-Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-Heart rate
YesAltimeter
NoGPS
-Waterproofing
IP67 shower-safeClock
-Sleep tracking
-Waterproof
-Companion app platforms
-RAM
-Display
-Processor
-Battery
-Display Resolution
-Screen resolution
-Auto update
-Operating System
-Weight
-Conectivity
-ROM
-Battery Life
-Silent alarm
-Weight
-Touchscreen
-Thickness
-Max Battery Life
-GLONASS
-Accelerometer
-