Apple Watch Series 3 (42mm) vs Apple Watch SE 3 (44mm) vs Apple Watch Series 10 (42mm) Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Differences only
Apple Watch Series 3 (42mm) Apple Watch SE 3 (44mm) Apple Watch Series 10 (42mm)
Released · 2017
Released · Sep 19, 2025
Released · Sep 20, 2024
1.6-inch · 390x312px
1.8-inch · 394x368px
446x374px
768GB · 16GB
1GB · 64GB
1GB · 64GB
341 mAh
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Availability

Officially announced
Sep 09, 2025
Prices (MSRP)
$249

Design

Dimensions
1.67 x 1.43 x 0.45 inches
42.5 x 36.4 x 11.4 mm
1.73 x 1.50 x 0.42 inches
44 x 38 x 10.7 mm
1.65 x 1.42 x 0.38 inches
42 x 36 x 9.7 mm
Weight
1.86 oz / 52.8 g 1.16 oz / 33.0 g 1.06 oz / 30.0 g
Materials
Back: Ceramic
Frame: Stainless steel
Back: Ceramic
Frame: Aluminum
Resistance
Water, Dust Water (up to 50 meters) Water, Dust; IP6X
Colors
Space Black, Silver Starlight, Midnight

Display

Size
1.6-inch, 55.61% screen-to-body 1.8-inch
Type
OLED, 1000 nits OLED, 1000 nits OLED, 2000 nits
Resolution
390x312px, 303 PPI 394x368px, 303 PPI 446x374px, 329 PPI
Protection
Sapphire
Features
Pressure-sensitive, Scratch-resistant glass Pressure-sensitive, Scratch-resistant glass, Ambient light sensor

Hardware

System chip
Apple S3 Apple S10 Apple S10
Processor
Dual-core Dual-core Dual-core
GPU
PowerVR PowerVR PowerVR
Memory
768GB/16GB 1GB/64GB 1GB/64GB
Storage expansion
not expandable not expandable
OS
watchOS (8.x, 7.x, 6.1, 6.x, 5.1, 5, 4.x) watchOS (9.x, 8.x, 7.x) watchOS (10.x)

Battery

Type
341 mAh Li - Ion Li - Ion
Charging
Qi wireless charging Magnetic charging Qi wireless charging

Connectivity & Features

Bluetooth
4.2 5.3 5.3
WLAN
b,g,n
802.11 b, g, n
a,b,g,n,ac
802.11 b, g, n
b,g,n
802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Ambient light sensor Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Thermometer, Barometer, ECG, Blood Oxygen
Location
A-GPS, Glonass GPS, Glonass A-GPS, Glonass, Galileo, BeiDou
Other
NFC NFC NFC, Ultra Wideband (UWB)

Multimedia

Headphones
No 3.5mm jack
Speakers
Loudspeaker Loudspeaker Loudspeaker
Additional microphone(s)
Yes

Cellular

5G Bands
5G Ready
LTE Bands
1, 3, 5, 7, 8, 18, 19, 20, 26 1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 66 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 66
TDD Bands
39, 40, 41 39, 40, 41
3G Bands
1, 5, 8 1, 2, 4, 5 1, 2, 4, 5
Data Speed
LTE, HSDPA+ (4G) 42.2 Mbit/s LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE, HSDPA+ (4G) 42.2 Mbit/s
SIM type
eSIM eSIM eSIM

Alternative variants

GPS Only
Weight 1.06 oz / 30.0 g
With Titanium frame
Weight 1.21 oz / 34.4 g
Materials Frame: Titanium
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