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Two Apple Watch Series 12 devices shown side by side, with the sensors visible on the back of one and the Heart Rate app shown on the face of the other.

Image: Apple

Apple

Apple Watch Series 12

Fully verifiedSmartwatchReleased · 2026-09-18Announced 2026-09-09

Specs verified 2026-09-30 · source

Apple Watch Series 12 is Apple's 2026 mainstream smartwatch, featuring the S11 chip and an Always-On Retina display.

Official product page

At a glance

DisplayAlways-On Retina OLED, LTPO3, 2000 nits peak brightness
Case sizes42mm case (aluminum/titanium): 42 x 37 x 9.7mm; 46mm case (aluminum/titanium): 46 x 40 x 9.7mm; ceramic case: 47 x 41 x 9.85mm
ChipS11 (64-bit dual-core, 4-core Neural Engine)
BatteryUp to 24 hours normal use, up to 38 hours in Low Power Mode
Water resistance50m (ISO 22810:2010), IP6X dust resistance
ConnectivityBluetooth 5.3
SensorsElectrical heart sensor (2nd generation), Optical heart sensor, Blood oxygen sensor, Skin temperature sensor
OSwatchOS

Device overview

Chip

Powered by S11 (64-bit dual-core, 4-core Neural Engine).

Health & sensors

Health and sensor features: Electrical heart sensor (2nd generation), Optical heart sensor, Blood oxygen sensor, Skin temperature sensor.

Battery

Battery life: Up to 24 hours normal use, up to 38 hours in Low Power Mode.

Connectivity

Supports Wi-Fi 4 (802.11n), 2.4/5GHz, Bluetooth 5.3, Cellular models (A3582, A3587) support RedCap 5G and LTE, and Apple Pay (NFC).

Specifications

Design & Build
Water resistance50m (ISO 22810:2010), IP6X dust resistance
ColorsDark Bronze, Light Gold, Black, Space Gray, Radiant Gold, Natural, Pearl White, Night Blue
Weight
42mm aluminum (GPS):
32.2 g
46mm aluminum (GPS):
39.5 g
Case dimensions42mm case (aluminum/titanium): 42 x 37 x 9.7mm; 46mm case (aluminum/titanium): 46 x 40 x 9.7mm; ceramic case: 47 x 41 x 9.85mm
Build materialsAluminum, titanium, or ceramic case
Display
DisplayAlways-On Retina OLED, LTPO3, 2000 nits peak brightness
Peak brightness2000 nits
Resolution
42mm:
374×446 px
46mm:
416×496 px
Performance
Chipset model nameS11
ChipsetS11 (64-bit dual-core, 4-core Neural Engine)
Memory & Storage
Storage64 GB
Battery & Charging
Charging timeUp to 80% charge in about 30 minutes (fast charging)
Battery lifeUp to 24 hours normal use, up to 38 hours in Low Power Mode
Connectivity
Wi-FiWi-Fi 4 (802.11n), 2.4/5GHz
BluetoothBluetooth 5.3
Contactless paymentsApple Pay (NFC)
Cellular connectivityCellular models (A3582, A3587) support RedCap 5G and LTE
Software
Operating system at launchwatchOS
Phone compatibilityiPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later
Security & Sensors
Health sensorsElectrical heart sensor (2nd generation), Optical heart sensor, Blood oxygen sensor, Skin temperature sensor

Sources & verification

This device is fully verified: every required fact is confirmed from a Tier 1 (manufacturer/official) source.

  • AppleManufacturer newsroom
    Tier 1
  • Apple Inc.Manufacturer specifications
    Tier 1

Tier 1 sources are the manufacturer's own product pages, technical specification sheets, or support documentation. Tier 2 sources are reputable independent technical references, used only for facts that couldn't be confirmed from official documentation. Last verified 2026-09-30.