What are the main differences between Apple Watch Ultra 4 and Apple Watch Series 12?

The main differences include display size, processor, camera specifications, battery capacity, and price. Check the detailed comparison table for complete specifications.

Which device has longer battery life?

Apple Watch Ultra 4 has battery, compared to Apple Watch Series 12 with battery.

Can I compare smartwatch with smartwatch?

Yes, you can compare any devices including smartphones, tablets, and smartwatches side-by-side to see their specifications and features.

Compare Apple Watch Ultra 4 vs Apple Watch Series 12

Launch

Network

GSM / HSPA / LTE / 5G Technology GSM / HSPA / LTE / 5G

GSM 850 / 900 / 1800 / 1900 2G Bands GSM 850 / 900 / 1800 / 1900

HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 3G Bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100

1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 53, 66, 71 4G Bands LTE

1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 53, 66, 71 SA/NSA 5G Bands SA/NSA

HSPA, LTE, 5G Speed HSPA, LTE, 5G

Body

49 x 44 x 12 mm Dimensions 46 x 40 x 9.7 mm - titanium / 47 x 41 x 9.9 mm - ceramic

63 g Weight 36.5 / 41.7 / 42.8 / 44.9 / 51.3 / 52.9 g

Sapphire crystal front, ceramic/zirconia back, titanium frame (grade 5) Build Sapphire crystal front, ceramic/zirconia back, titanium frame (grade 5) or ceramic frame

eSIM SIM eSIM

IP6X certified
100m water resistant (22810:2010)
40m swimproof/diving (EN13319)
MIL-STD-810H compliant
ECG certified (region dependent SW application; HW available on all models) Others IP6X certified
50m water resistant
ECG certified (region dependent SW application; HW available on all models)
Depth gauge to 6m

Display

1.98 inches Size 1.96 inches

Retina LTPO3 OLED Type Retina LTPO3 OLED

514x422 pixels Resolution 496x416 pixels

326 PPI Density 330 PPI

3000 nits Peak Brightness 2000 nits

Sapphire crystal glass Protection Sapphire crystal

Wide-angle OLED Others Wide-angle OLED

Processors

Apple CPU Apple

S11 Chipset S11

Dual-core CPU Core Dual-core

PowerVR GPU PowerVR

Software

Memory

Sound

Connectivity

Wi-Fi 802.11 b/g/n, dual-band WLAN Wi-Fi 802.11 b/g/n, dual-band

5.3 Bluetooth 5.3

GPS (L1+L5), GLONASS, GALILEO, BDS, QZSS Location GPS, GLONASS, GALILEO, QZSS, BDS

Yes NFC Yes

Sensors

Accelerometer, Gyroscope, Compass, Barometer Sensors Types Accelerometer, Gyroscope, Compass, Barometer

Always-on heart rate, always-on altimeter (-500m to 9000m), SpO2, VO2max, temperature (body), temperature (water)
Health Sensing System: third‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, temperature sensor
Temperature sensing (0.01˚ accuracy)
Depth gauge (±1m accuracy)
Ultra Wideband (UWB) support (gen2 chip)
Emergency SOS via satellite Others Always-on heart rate, always-on altimeter, SpO2, VO2max, temperature (body), temperature (water)
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