Screen size
Watch Series 12Winner: 2.0"+16%
Watch Series 2 42mm1.7"
Quick verdict
Watch Series 12 leads the measured specs 9-2.
Measured wins
Watch Series 12
9
spec wins
Overall winner
Ties
3
equal specs
Watch Series 2 42mm
2
spec wins
Screen size
Technology
Watch Series 12
GSM / HSPA / LTE / 5G
Watch Series 2 42mm
No cellular connectivity
2G bands
Watch Series 12
GSM 850 / 900 / 1800 / 1900
Watch Series 2 42mm
N/A
3G bands
Watch Series 12
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Watch Series 2 42mm
-
4G bands
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
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
USB
5G support
NFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Watch Series 2 42mm
-
5G bands
Watch Series 12
1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 66, 71 SA/NSA
Watch Series 2 42mm
-
Speed
Watch Series 12
HSPA, LTE, 5G
Watch Series 2 42mm
-
GPRS
Watch Series 12
-
Watch Series 2 42mm
No
EDGE
Watch Series 12
-
Watch Series 2 42mm
No
Announced
Watch Series 12
2026, September 09
Watch Series 2 42mm
2016, September. Released 2016, December
Status
Watch Series 12
Available. Released 2026, September 18
Watch Series 2 42mm
Discontinued
Dimensions
Watch Series 12
46 x 40 x 9.7 mm - titanium47 x 41 x 9.9 mm - ceramic
Watch Series 2 42mm
42.5 x 36.4 x 11.4 mm (1.67 x 1.43 x 0.45 in)
Weight
Watch Series 12
36.5/41.7/42.8/44.9/51.3/52.9 g (1.31 oz)
Watch Series 2 42mm
52.4 g body (1.83 oz)
Build
Watch Series 12
Sapphire crystal front, zirconia back, titanium case (grade 5) or ceramic case
Watch Series 2 42mm
Glass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frame
SIM
Watch Series 12
eSIM
Watch Series 2 42mm
No
Other
Watch Series 12
IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models) Depth gauge to 6m
Watch Series 2 42mm
50m water resistant
Type
Watch Series 12
Retina LTPO3 OLED, 2000 nits (peak)
Watch Series 2 42mm
Retina OLED, 1000 nits (peak)
Size
Watch Series 12
1.96 inches
Watch Series 2 42mm
1.65 inches
Resolution
Watch Series 12
496 x 416 pixels (~326 ppi density)
Watch Series 2 42mm
390 x 312 pixels (~303 ppi density)
Protection
Watch Series 12
Sapphire crystal
Watch Series 2 42mm
Sapphire crystal glass
Other
Watch Series 12
Wide-angle OLED
Watch Series 2 42mm
3D Touch display
OS
Watch Series 12
watchOS 27
Watch Series 2 42mm
watchOS 3.0, upgradable to watchOS 6.2.8
Chipset
Watch Series 12
Apple S11
Watch Series 2 42mm
Apple S2 (16 nm)
CPU
Watch Series 12
Dual-core
Watch Series 2 42mm
Dual-core 780 MHz Cortex-A7
GPU
Watch Series 12
PowerVR
Watch Series 2 42mm
PowerVR G6200
Card slot
Watch Series 12
No
Watch Series 2 42mm
No
Internal
Watch Series 12
64GB
Watch Series 2 42mm
8GB 512MB RAM
Other
Watch Series 12
No
Watch Series 2 42mm
No
Loudspeaker
Watch Series 12
Yes
Watch Series 2 42mm
Yes
3.5mm jack
Watch Series 12
No
Watch Series 2 42mm
No
WLAN
Watch Series 12
Wi-Fi 802.11 b/g/n, dual-band
Watch Series 2 42mm
Wi-Fi 802.11 b/g/n
Bluetooth
Watch Series 12
5.3, A2DP, LE
Watch Series 2 42mm
4.0, A2DP
Positioning
Watch Series 12
GPS, GLONASS, GALILEO, QZSS, BDS
Watch Series 2 42mm
GPS, GLONASS
NFC
Watch Series 12
Yes
Watch Series 2 42mm
Yes
Radio
Watch Series 12
No
Watch Series 2 42mm
No
USB
Watch Series 12
No
Watch Series 2 42mm
No
Sensors
Watch Series 12
Accelerometer, gyro, always-on heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body), temperature (water)
Watch Series 2 42mm
Accelerometer, gyro, heart rate
Other
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
Watch Series 2 42mm
Natural language commands and dictation
Type
Watch Series 12
Li-Ion
Watch Series 2 42mm
Li-Ion 334 mAh (1.27 Wh), non-removable
Charging
Watch Series 12
Wireless, 0-80% in 30 min
Watch Series 2 42mm
Wireless
Colors
Watch Series 12
Radiant Gold Titanium, Natural Titanium, Silver Titanium (Hermès only), Pearl White Ceramic, Night Blue Ceramic
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 Series 12
A3582, A3587
Watch Series 2 42mm
A1758
Price
Watch Series 12
€ 439.00
Watch Series 2 42mm
About 700 EUR