Samsung Galaxy Watch specification and features

Network
Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 – Global
  HSDPA 850 / 1700(AWS) / 1900 – USA/Canada
  HSDPA 2100 – China
4G bands 1, 3, 5, 7, 8, 20 – Global
  2, 4, 5, 12, 13, 25, 26, 66 – USA/Canada
  1, 3, 5, 38, 39, 40, 41 – China
Speed HSPA 42.2/5.76 Mbps, LTE
Launch
Announced 2018, August
Status Available. Released 2018, August
Body
Dimensions 49 x 46 x 13 mm (1.93 x 1.81 x 0.51 in)
Weight 63 g (2.22 oz)
Build Glass front (Gorilla Glass DX+), stainless steel frame 316L
SIM eSIM
  Samsung Pay
MIL-STD-810G compliant*

50m water resistant (IP68)
Compatible with standard 20/22mm straps
*does not guarantee ruggedness or use in extreme conditions

Display
Type Super AMOLED capacitive touchscreen, 16M colors
Size 1.3 inches, 10.8 cm2 (~48.1% screen-to-body ratio)
Resolution 360 x 360 pixels, 1:1 ratio (~278 ppi density)
Protection Corning Gorilla Glass DX+
  Always-on display
Rotating bezel
Platform
OS Tizen-based wearable OS 4.0
Chipset Exynos 9110 (10 nm)
CPU Dual-core 1.15 GHz Cortex-A53
GPU Mali-T720
Memory
Card slot No
Internal 4GB 768MB RAM, 4GB 1.5GB RAM
  eMMC
Camera
  No
Sound
Loudspeaker Yes
3.5mm jack No
Comms
WLAN Wi-Fi 802.11 b/g/n
Bluetooth 4.2, A2DP, LE
GPS Yes, with A-GPS, GLONASS
NFC Yes
Radio No
USB No
Features
Sensors Accelerometer, gyro, heart rate, barometer
  Natural language commands and dictation
Battery
  Non-removable Li-Ion 472 mAh battery
Charging Qi wireless charging
Stand-by Up to 72 h (mixed usage)
Misc
Colors Silver (46mm); Midnight Black, Rose Gold (42mm)
Models SM-805U, SM-805W, SM-815U, SM-815W, SM-R805F, SM-R805N, SM-R815F, SM-R815N, SM-R805
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