Apple Watch SE 3
Apple Watch SE 3 runs watchOS 26 with core Apple Watch apps and health features. It uses the S10 chip for faster performance. There’s no camera. Battery delivers about 18-hour all-day life with faster charging. The Always-On Retina OLED screen is tough and bright. You get 5G connectivity, sleep tracking, temperature sensing and rich workout metrics.
Technical Specifications
Speed
HSPA, LTE, 5G
Network
2G Band
GSM 850 / 900 / 1800 / 1900
3G Band
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G Band
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66
5G Band
1, 2, 3, 4, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 53, 66, 71 SA/NSA
Launch
Annoucement
09 September 2025
Availability
Available: Released 2025, September 19
Body
Height
44 mm
Width
38 mm
Thickness
10.7 mm
Weight
24.4/33 Gram
Build
Glass front, plastic/sapphire crystal back, aluminum frame
Display
Screen Type
Retina LTPO OLED, 1000 nits (peak)
Screen Size
1.78 inches
Resolution
448 x 368 pixels
ppi density
326 ppi density
Protection
Ion-X strengthened glass (2025 gen)
Durability
50m water resistant
Operating Platform
OS
watchOS 26, upgradable to watchOS 26.2
Chipset
Apple S10
CPU
Dual-core
CPU
PowerVR
Memory
External Memory
No
Internal Memory
64GB
Type of Memory
-
RAM
-
Camera
No
Selfie camera
No
Connectivity
WLAN
Wi-Fi 802.11 b/g/n
Bluetooth
5.3, A2DP, LE
Positioning
GPS, GLONASS, GALILEO, QZSS
NFC
Yes
USB Type
No
Data
2G GSM, 3G HSPA, 4G LTE, 5G capable
Features
Sensors
Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass, temperature (body), Fall Detection, Crash Detection
Media playback
Loud Speeker
Yes
Built-in speaker
Built-in microphone
Haptic Engine for alerts and navigation
Supports Bluetooth headphones
Battery
Type & Capacity
Li-Ion
Charging
Wireless:
Wireless, 80% in 45 min
Battery Life
Up to 36 hours normal use
Up to 72 hours in Low Power Mode
Misc
SIM
eSIM
Color
Midnight, Starlight
Price Range
GPS 40mm $249 – $279
GPS 44mm $279 – $309
GPS + Cellular $299 – $349
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