SAMSUNG GALAXY WATCH4 (40mm)

Network Technology
GSM / HSPA / LTE
Launch Announced 2021, August 11
Status Available. Released 2021, August 27
Body Dimensions 44.4 x 43.3 x 9.8 mm (1.75 x 1.70 x 0.39 in)
Weight 30.3 g (44mm), 25.9 g (40mm) (1.06 oz)
Build Glass front (Gorilla Glass DX+), aluminum frame
SIM eSIM
MIL-STD-810G compliant*
IP68 dust tight and water resistant (immersible up to 50m)
Compatible with standard 20mm straps
ECG certified
Blood pressure monitor
*does not guarantee ruggedness or use in extreme conditions
Display Type Super AMOLED
Size 1.4 inches
Resolution 450 x 450 pixels (~321 ppi density)
Protection Corning Gorilla Glass DX+
Always-on display
Platform OS Android Wear OS 4, One UI Watch 5
Chipset Exynos W920 (5 nm)
CPU Dual-core 1.18 GHz Cortex-A55
GPU Mali-G68
Memory Card slot No
Internal 16GB 1.5GB RAM
Camera No
Sound Loudspeaker Yes
3.5mm jack No
Comms WLAN Wi-Fi 802.11 a/b/g/n, dual-band
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, GALILEO, BDS
NFC Yes
Radio No
USB No
Features Sensors Accelerometer, gyro, compass, barometer, heart rate, SpO2
Battery Type Li-Ion 361 mAh
Charging Wireless
Misc Colors Black, Pink Gold, Silver, Green, Thom Browne Edition, Bespoke Edition, PXG Golf Edition
Models SM-R860, SM-R870