Screen size
Watch SE 3Winner: 1.8"+7.3%
Watch Series 2 42mm1.7"
Quick verdict
Watch SE 3 leads the measured specs 8-1.
Measured wins
Watch SE 3
8
spec wins
Overall winner
Ties
4
equal specs
Watch Series 2 42mm
1
spec wins
Screen size
Technology
Watch SE 3
GSM / HSPA / LTE / 5G
Watch Series 2 42mm
No cellular connectivity
2G bands
Watch SE 3
GSM 850 / 900 / 1800 / 1900
Watch Series 2 42mm
N/A
3G bands
Watch SE 3
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK, HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada
Watch Series 2 42mm
-
4G bands
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
Resolution
Refresh rate
Peak brightness
equal specsPixel density
CPU 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
Watch Series 2 42mm
-
5G bands
Watch SE 3
SA/NSA
Watch Series 2 42mm
-
Speed
Watch SE 3
HSPA, LTE, 5G
Watch Series 2 42mm
-
GPRS
Watch SE 3
-
Watch Series 2 42mm
No
EDGE
Watch SE 3
-
Watch Series 2 42mm
No
Announced
Watch SE 3
2025, September 09
Watch Series 2 42mm
2016, September. Released 2016, December
Status
Watch SE 3
Available. Released 2025, September 19
Watch Series 2 42mm
Discontinued
Dimensions
Watch SE 3
44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in)
Watch Series 2 42mm
42.5 x 36.4 x 11.4 mm (1.67 x 1.43 x 0.45 in)
Weight
Watch SE 3
26.4 g or 33 g (1.16 oz)
Watch Series 2 42mm
52.4 g body (1.83 oz)
Build
Watch SE 3
Glass front, plastic/sapphire crystal back, aluminum frame
Watch Series 2 42mm
Glass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frame
SIM
Watch SE 3
eSIM
Watch Series 2 42mm
No
Other
Watch SE 3
50m water resistant
Watch Series 2 42mm
50m water resistant
Type
Watch SE 3
Retina LTPO OLED, 1000 nits (peak)
Watch Series 2 42mm
Retina OLED, 1000 nits (peak)
Size
Watch SE 3
1.78 inches
Watch Series 2 42mm
1.65 inches
Resolution
Watch SE 3
448 x 368 pixels (~326 ppi density)
Watch Series 2 42mm
390 x 312 pixels (~303 ppi density)
Protection
Watch SE 3
Ion-X strengthened glass (2025 gen)
Watch Series 2 42mm
Sapphire crystal glass
Other
Watch SE 3
-
Watch Series 2 42mm
3D Touch display
OS
Watch SE 3
watchOS 26, upgradable to watchOS 26.2.1
Watch Series 2 42mm
watchOS 3.0, upgradable to watchOS 6.2.8
Chipset
Watch SE 3
Apple S10
Watch Series 2 42mm
Apple S2 (16 nm)
CPU
Watch SE 3
Dual-core
Watch Series 2 42mm
Dual-core 780 MHz Cortex-A7
GPU
Watch SE 3
PowerVR
Watch Series 2 42mm
PowerVR G6200
Card slot
Watch SE 3
No
Watch Series 2 42mm
No
Internal
Watch SE 3
64GB
Watch Series 2 42mm
8GB 512MB RAM
Other
Watch SE 3
No
Watch Series 2 42mm
No
Loudspeaker
Watch SE 3
Yes
Watch Series 2 42mm
Yes
3.5mm jack
Watch SE 3
No
Watch Series 2 42mm
No
WLAN
Watch SE 3
Wi-Fi 802.11 b/g/n
Watch Series 2 42mm
Wi-Fi 802.11 b/g/n
Bluetooth
Watch SE 3
5.3, A2DP, LE
Watch Series 2 42mm
4.0, A2DP
Positioning
Watch SE 3
GPS, GLONASS, GALILEO, QZSS
Watch Series 2 42mm
GPS, GLONASS
NFC
Watch SE 3
Yes
Watch Series 2 42mm
Yes
Radio
Watch SE 3
No
Watch Series 2 42mm
No
USB
Watch SE 3
No
Watch Series 2 42mm
No
Sensors
Watch SE 3
Accelerometer, gyro, heart rate (2nd gen), barometer, always-on altimeter, compass, temperature (body)
Watch Series 2 42mm
Accelerometer, gyro, heart rate
Other
Watch SE 3
Media playback
Watch Series 2 42mm
Natural language commands and dictation
Type
Watch SE 3
Li-Ion
Watch Series 2 42mm
Li-Ion 334 mAh (1.27 Wh), non-removable
Charging
Watch SE 3
Wireless, 80% in 45 min
Watch Series 2 42mm
Wireless
Colors
Watch SE 3
Midnight, Starlight
Watch Series 2 42mm
Sport band: silver case/white, black case/black Leather band: silver case/blue, brown, orange Stainless Steel band: silver case/silver, black case/black
Models
Watch SE 3
A3325, A3324, A3328, A3326, A3327, A3329, A3391, A3392
Watch Series 2 42mm
A1758
SAR
Watch SE 3
1.18 W/kg (head)
Watch Series 2 42mm
-
SAR EU
Watch SE 3
0.42 W/kg (head)
Watch Series 2 42mm
-
Price
Watch SE 3
€ 244.00
Watch Series 2 42mm
About 700 EUR