Apple Watch Series 4 (44mm) vs Apple Watch Series 10 (46mm) Specs Comparison

Design

Dimensions
1.73 x 1.50 x 0.42 inches 44.0 x 38.0 x 10.7 mm	1.81 x 1.54 x 0.38 inches 46 x 39 x 9.7 mm
Weight
1.29 oz (36.7 g)	1.28 oz (36.4 g)
Materials
Frame: Aluminum	Back: Ceramic Frame: Aluminum
Resistance
Water	Water, Dust; IP6X
Colors
Silver, Black

Display

Size
1.8-inch	1.7-inch
Resolution
448x368px, 326 PPI	496x416px, 383 PPI
Technology
OLED	OLED
Screen-to-body
59.89 %
Peak brightness
1000 cd/m2 (nit)	2000 cd/m2 (nit)
Features
Pressure-sensitive, Scratch-resistant glass (Sapphire), Ambient light sensor

Hardware

System chip
Apple S4 (7 nm)	Apple S10
Processor
Dual-core	Dual-core
GPU
Apple G11M	PowerVR
RAM
1GB	1GB
Internal storage
16GB	64GB
Storage expansion
not expandable	not expandable
OS
watchOS (9.x, 8.x, 7.x, 6.x, 5)	watchOS (10.x)

Battery

Capacity
292 mAh
Type
	Li - Ion
Charging
Magnetic charging	Qi wireless charging

Camera

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
802.11 b,g,n	802.11 b,g,n
Location
Glonass, Galileo, QZSS	A-GPS, Glonass, Galileo, BeiDou
Sensors
Accelerometer, Gyroscope, Heart rate, Barometer	Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen
Other
NFC	NFC, Ultra Wideband (UWB)

Multimedia

Speakers
Loudspeaker	Loudspeaker
Additional microphone(s)
Noise cancellation	Yes

Cellular

4G (FDD)
	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)
	Bands 39(1900+), 40(2300), 41(2600+)
3G
	Bands 1(2100), 2(1900), 4(1700/2100), 5(850)
Data Speed
LTE, HSPA	LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM	eSIM

Alternative variants

GPS Only

Weight	1.28 oz (36.4 g)

With Titanium frame

Weight	1.47 oz (41.7 g)
Materials	Frame: Titanium

Links

Full specifications
Apple Watch Series 4 (44mm) Specs	Apple Watch Series 10 (46mm) Specs