Screen size
Watch SE1.8"
Watch Series 12Winner: 2.0"+9.2%
Quick verdict
Watch Series 12 leads the measured specs 8-2.
Measured wins
Watch SE
2
spec wins
Ties
4
equal specs
Watch Series 12
8
spec wins
Overall winner
Screen size
Technology
Watch SE
GSM / HSPA / LTE
Watch Series 12
GSM / HSPA / LTE / 5G
2G bands
Watch SE
GSM 850 / 900 / 1800 / 1900
Watch Series 12
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 Series 12
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands
Watch SE
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
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 Series 12
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71
Speed
Watch SE
HSPA, LTE
Watch Series 12
HSPA, LTE, 5G
5G bands
Watch SE
-
Watch Series 12
1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 66, 71 SA/NSA
Announced
Watch SE
2020, September 15
Watch Series 12
2026, September 09
Status
Watch SE
Available. Released 2020, September 18
Watch Series 12
Available. Released 2026, September 18
Dimensions
Watch SE
44 x 38 x 10.4 mm (1.73 x 1.50 x 0.41 in)
Watch Series 12
46 x 40 x 9.7 mm - titanium47 x 41 x 9.9 mm - ceramic
Weight
Watch SE
36.4 g (1.27 oz)
Watch Series 12
36.5/41.7/42.8/44.9/51.3/52.9 g (1.31 oz)
Build
Watch SE
Glass front, ceramic/sapphire crystal back, aluminum frame
Watch Series 12
Sapphire crystal front, zirconia back, titanium case (grade 5) or ceramic case
SIM
Watch SE
eSIM
Watch Series 12
eSIM
Other
Watch SE
50m water resistant
Watch Series 12
IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models) Depth gauge to 6m
Type
Watch SE
Retina LTPO OLED, 1000 nits (peak)
Watch Series 12
Retina LTPO3 OLED, 2000 nits (peak)
Size
Watch SE
1.78 inches
Watch Series 12
1.96 inches
Resolution
Watch SE
448 x 368 pixels (~326 ppi density)
Watch Series 12
496 x 416 pixels (~326 ppi density)
Protection
Watch SE
Ion-X strengthened glass
Watch Series 12
Sapphire crystal
Other
Watch SE
-
Watch Series 12
Wide-angle OLED
OS
Watch SE
watchOS 7.0, upgradable to watchOS 10.6.1
Watch Series 12
watchOS 27
Chipset
Watch SE
Apple S5
Watch Series 12
Apple S11
CPU
Watch SE
Dual-core
Watch Series 12
Dual-core
GPU
Watch SE
PowerVR
Watch Series 12
PowerVR
Card slot
Watch SE
No
Watch Series 12
No
Internal
Watch SE
32GB 1GB RAM
Watch Series 12
64GB
Other
Watch SE
No
Watch Series 12
No
Loudspeaker
Watch SE
Yes
Watch Series 12
Yes
3.5mm jack
Watch SE
No
Watch Series 12
No
WLAN
Watch SE
Wi-Fi 802.11 b/g/n
Watch Series 12
Wi-Fi 802.11 b/g/n, dual-band
Bluetooth
Watch SE
5.0, A2DP, LE
Watch Series 12
5.3, A2DP, LE
Positioning
Watch SE
GPS, GLONASS
Watch Series 12
GPS, GLONASS, GALILEO, QZSS, BDS
NFC
Watch SE
Yes
Watch Series 12
Yes
Radio
Watch SE
No
Watch Series 12
No
USB
Watch SE
No
Watch Series 12
No
Sensors
Watch SE
Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass
Watch Series 12
Accelerometer, gyro, always-on heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water)
Other
Watch SE
-
Watch Series 12
Health Sensing System: third‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, temperature sensor Temperature sensing (0.01˚ accuracy) Ultra Wideband (UWB) support (gen2 chip) Media playback
Type
Watch SE
Li-Ion
Watch Series 12
Li-Ion
Charging
Watch SE
Wireless
Watch Series 12
Wireless, 0-80% in 30 min
Colors
Watch SE
Silver, Gold, Space Gray
Watch Series 12
Radiant Gold Titanium, Natural Titanium, Silver Titanium (Hermès only), Pearl White Ceramic, Night Blue Ceramic
Models
Watch SE
A2353, A2354, A2355, A2356, A2351, A2352
Watch Series 12
A3582, A3587
Price
Watch SE
About 290 EUR
Watch Series 12
€ 439.00