Screen size
equal specsWatch SE1.8"
Watch SE 31.8"
Quick verdict
Watch SE 3 leads the measured specs 4-2.
Measured wins
Watch SE
2
spec wins
Ties
7
equal specs
Watch SE 3
4
spec wins
Overall winner
Screen size
equal specsTechnology
Watch SE
GSM / HSPA / LTE
Watch SE 3
GSM / HSPA / LTE / 5G
2G bands
Watch SE
GSM 850 / 900 / 1800 / 1900
Watch SE 3
GSM 850 / 900 / 1800 / 1900
3G bands
Watch SE
HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada, HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - Global
Watch SE 3
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK, HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada
4G bands
Watch SE
Resolution
equal specsRefresh rate
Peak brightness
equal specsPixel density
equal specsCPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
1, 2, 3, 4, 5, 7, 12, 13, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada, 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - Global
Watch SE 3
1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK, 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada
Speed
Watch SE
HSPA, LTE
Watch SE 3
HSPA, LTE, 5G
5G bands
Watch SE
-
Watch SE 3
SA/NSA
Announced
Watch SE
2020, September 15
Watch SE 3
2025, September 09
Status
Watch SE
Available. Released 2020, September 18
Watch SE 3
Available. Released 2025, September 19
Dimensions
Watch SE
44 x 38 x 10.4 mm (1.73 x 1.50 x 0.41 in)
Watch SE 3
44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in)
Weight
Watch SE
36.4 g (1.27 oz)
Watch SE 3
26.4 g or 33 g (1.16 oz)
Build
Watch SE
Glass front, ceramic/sapphire crystal back, aluminum frame
Watch SE 3
Glass front, plastic/sapphire crystal back, aluminum frame
SIM
Watch SE
eSIM
Watch SE 3
eSIM
Other
Watch SE
50m water resistant
Watch SE 3
50m water resistant
Type
Watch SE
Retina LTPO OLED, 1000 nits (peak)
Watch SE 3
Retina LTPO OLED, 1000 nits (peak)
Size
Watch SE
1.78 inches
Watch SE 3
1.78 inches
Resolution
Watch SE
448 x 368 pixels (~326 ppi density)
Watch SE 3
448 x 368 pixels (~326 ppi density)
Protection
Watch SE
Ion-X strengthened glass
Watch SE 3
Ion-X strengthened glass (2025 gen)
OS
Watch SE
watchOS 7.0, upgradable to watchOS 10.6.1
Watch SE 3
watchOS 26, upgradable to watchOS 26.2.1
Chipset
Watch SE
Apple S5
Watch SE 3
Apple S10
CPU
Watch SE
Dual-core
Watch SE 3
Dual-core
GPU
Watch SE
PowerVR
Watch SE 3
PowerVR
Card slot
Watch SE
No
Watch SE 3
No
Internal
Watch SE
32GB 1GB RAM
Watch SE 3
64GB
Other
Watch SE
No
Watch SE 3
No
Loudspeaker
Watch SE
Yes
Watch SE 3
Yes
3.5mm jack
Watch SE
No
Watch SE 3
No
WLAN
Watch SE
Wi-Fi 802.11 b/g/n
Watch SE 3
Wi-Fi 802.11 b/g/n
Bluetooth
Watch SE
5.0, A2DP, LE
Watch SE 3
5.3, A2DP, LE
Positioning
Watch SE
GPS, GLONASS
Watch SE 3
GPS, GLONASS, GALILEO, QZSS
NFC
Watch SE
Yes
Watch SE 3
Yes
Radio
Watch SE
No
Watch SE 3
No
USB
Watch SE
No
Watch SE 3
No
Sensors
Watch SE
Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass
Watch SE 3
Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass, temperature (body)
Other
Watch SE
-
Watch SE 3
Media playback
Type
Watch SE
Li-Ion
Watch SE 3
Li-Ion
Charging
Watch SE
Wireless
Watch SE 3
Wireless, 80% in 45 min
Colors
Watch SE
Silver, Gold, Space Gray
Watch SE 3
Midnight, Starlight
Models
Watch SE
A2353, A2354, A2355, A2356, A2351, A2352
Watch SE 3
A3325, A3324, A3328, A3326, A3327, A3329, A3391, A3392
Price
Watch SE
About 290 EUR
Watch SE 3
€ 244.00
SAR
Watch SE
-
Watch SE 3
1.18 W/kg (head)
SAR EU
Watch SE
-
Watch SE 3
0.42 W/kg (head)