Samsung Galaxy Watch Ultra (2025) vs Apple Watch SE 3 (40mm) 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.

Samsung Galaxy Watch Ultra (2025) Apple Watch SE 3 (40mm)
Released · Jul 24, 2025
Released · Sep 19, 2025
1.5-inch · 480x480px
1.6-inch · 394x324px
2GB · 32GB
1GB · 64GB
590 mAh
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Availability

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

Design

Dimensions
1.57 x 1.34 x 0.42 inches
40 x 34 x 10.7 mm
Weight
2.13 oz / 60.5 g 0.93 oz / 26.4 g
Materials
Back: Glass (Sapphire), Ceramic
Frame: Titanium
Resistance
Water (up to 10 meters), Dust; IP68; MIL-STD-810 certified Water (up to 50 meters)
Colors
Titanium Silver, Titanium Gray, Titanium White Starlight, Midnight

Display

Size
1.5-inch 1.6-inch, 57.48% screen-to-body
Type
Super AMOLED OLED, 1000 nits
Resolution
480x480px, 453 PPI 394x324px, 325 PPI
Protection
Sapphire
Features
Pressure-sensitive, Scratch-resistant glass, Ambient light sensor

Hardware

System chip
Exynos W1000 (3 nm) Apple S10
Processor
Dual-core
GPU
Mali-G68 PowerVR
Memory
2GB/32GB 1GB/64GB
Storage expansion
not expandable
OS
Wear OS watchOS (9.x, 8.x, 7.x)

Battery

Type
590 mAh Li - Ion
Charging
Qi wireless charging Magnetic charging
Charge speed
Wireless: 10.0W

Connectivity & Features

Bluetooth
5.3 5.3
WLAN
Yes
802.11 a, b, g, n, ac
Yes
802.11 b, g, n
Sensors
Accelerometer, Gyroscope, Pedometer, Compass, Heart rate, Thermometer, Barometer, Step detector, ECG, Blood Oxygen, Ambient light sensor Accelerometer, Gyroscope, Altimeter, Compass, Heart rate, Barometer, Ambient light sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou GPS, Glonass
Other
NFC NFC

Multimedia

Speakers
Loudspeaker Loudspeaker

Cellular

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