Introduction:
Brand	Apple
Model	Watch Series 4 40mm A1977
Brief WiFi-only 40 mm version Watch S4 features larger screen with reduced bezels, 2th generation electric ECG sensor and NFC support
Released	2018 Sep 21
Announced	2018 Sep 12
Hardware Designer	Apple
Manufacturer	Quanta Computer
Codename	Apple Watch 4,1
OEM ID	N131sAP
General Extras	Haptic touch feedback , Tactile touch feedback
Device Category	Smartwatch
List of Additional Features Ion-X Sapphire glass screen, changeable straps, iOS 8.2 support, aluminium case, optical and electrical heart-rate sensors, LTPO OLED Retina Display
Collapse datasheet \| Add to compare Physical Attributes:
Width	34 mm
	1.34 inch
Height	40 mm
	1.57 inch
Depth	10.7 mm
	0.42 inches
Bounding Volume	14.6 ccm
Mass	30.1 g
	1.06 ounces
Software Environment:
Platform	Apple iOS / iPadOS
Operating System	Apple WatchOS 5
Software Extras	Voice Command , Intelligent personal assistant
Application processor, Chipset:
CPU Clock	1590 MHz
CPU	Apple S4 (T8006), 2018, 64 bit, dual-core, 7 nm, Apple G11M GPU
Operative Memory:
RAM Type	Yes
RAM Capacity	768 MiB RAM
Non-volatile Memory:
Non-volatile Memory Type	Flash EEPROM
Non-volatile Memory Interface	Yes
Non-volatile Memory Capacity	15258 MiB non-volatile
Display
Display Diagonal	38.94 mm
	1.5 inch
Resolution	324x394
	127656 pixels
Display Width	24.73 mm
	0.97 inch
Display Height	30.08 mm
	1.18 inch
Horizontal Full Bezel Width	9.27 mm
Display Area	743.9 square millimeter
Display Area Utilization	54.7%
Pixel Size	0.07634 mm/pixel
Pixel Density	333 PPI
Display Type	Color AM-OLED display
Display Color Depth	24 bit/pixel
Number of Display Scales	16.8M
Display Dynamic Range Depth	8 bit/pixel
Display Illumination	Self-illuminating
Display Subpixel Scheme	Yes
Scratch Resistant Screen	Sapphire Glass
Collapse datasheet Graphical Subsystem:
Graphical Controller	Apple G11M
Audio/Video Interfaces:
A/V Out	No
Audio Subsystem:
Audio Channel(s)	stereo
Sound Recording:
Microphone(s)	mono
Sound Playing:
Loudspeaker(s):	mono
Audio Output:	No
Cellular Phone:
Supported Cellular Bands	No
Secondary Cellular Phone:
Sec. Supported Cellular Networks:	No
Control Peripherals:
Touchscreen Type	Pressure sensitive capacitive multi-touch sensing screen
Touchscreen Simultaneous Touch Points	Yes
Scroll Wheel	Pressable rotary scroll wheel
Communication Interfaces:
Expansion Interfaces	No
USB	No
	No
USB Connector	No
Bluetooth	Bluetooth 5.0
	Internal antenna
Wireless LAN	IEEE 802.11b , IEEE 802.11g , IEEE 802.11n
	Internal antenna
WLAN Controller IC	W3 Apple
NFC	Yes
Multimedia Broadcast:
FM Radio Receiver	No
Satellite Navigation:
Supported GPS protocol(s)	GPS (NMEA 0183)
Satellite Antenna:	Internal antenna
Complementary Satellite Services	QZSS
Supported GLONASS protocol(s)	L1OF
Supported Galileo service(s)	E1
Primary Camera System
Camera Image Sensor	No
Focus	No
Flash	No
Collapse datasheet Auxiliary Camera:
Aux. Camera Image Sensor	No
Auxiliary Camera No. 2:
Aux. 2 Camera Image Sensor	No
Auxiliary Camera No. 3:
Aux. 3 Camera Image Sensor	No
Auxiliary Camera No. 4:
Aux. 4 Camera Image Sensor	No
Aux. 4 Camera Focus	No
Secondary Camera System
Secondary Camera Sensor	No
Secondary Auxiliary Camera:
Sec. Aux. Cam. Image Sensor	No
Secondary Auxiliary Camera No. 2:
Sec. Aux. 2 Cam. Image Sensor	No
Built-in Sensors:
Built-in accelerometer	Yes
Built-in gyroscope	Yes
Additional sensors	Altimeter , Barometer , Heart rate sensor , Light intensity sensor
Ingress Protection:
Protection from solid materials	Yes
Protection from liquids	7 Protected against the effect of immersion up to 1m of depth
Immersion into liquids (depth limit)	5000 cm
Power Supply:
Battery	Lithium-ion polymer (LiPo)
	built-in
	1-cell
Nominal Cell Voltage (1st cell)	3.81 Volts
Nominal Battery Voltage	3.81 Volts
Estimated Battery Life	18.0 hours
Wireless Charging	Yes
Geographical Attributes:
Market Countries	Algeria , Argentina , Armenia , Australia , Austria , Bangladesh , Belarus , Belgium , Bolivia , Brazil , Bulgaria , Cambodia , Canada , Chile , China , Colombia , Costa Rica , Croatia , Cyprus , Czech Republic , Denmark , Ecuador , Estonia , Egypt , France , Greece , Germany , Guatemala , HK , Honduras , Hungary , India , Indonesia , Ireland , Israel , Italy , Japan , Jordan , Kazakhstan , Kenya , Kuwait , Latvia , Lithuania , Malaysia , Mexico , Morocco , Mongolia , Myanmar , Nepal , Netherlands , Nicaragua , Norway , NZ , Panama , Pakistan , Paraguay , Peru , Philippines , Poland , Portugal , Puerto Rico , Romania , Russia , Saudi Arabia , Serbia , Slovakia , Singapore , Slovenia , South Africa , South Korea , Spain , Sri Lanka , Sweden , Switzerland , Taiwan , Tanzania , Thailand , Tunisie , Turkey , Emirates (UAE) , Uganda , UK , Ukraine , USA , Uzbekistan , Vietnam
Market Regions	Africa , Asia , Australia , Central America , Eastern Europe , Europe , Middle East , North America (NA) , Oceania , South America (SA) , Southeast Asia , Western Europe , Worldwide
Datasheet Attributes:
Data Integrity	Final
Added	2018-09-18 18:26