Watch Series 11 Aluminium 42mm GPS (Refurbished)

Apple Watch Series 11 - Product Specifications

General

• Year introduced: 2025
• Models:
  • Titanium (GPS + Cellular only):
    • 42mm: A3335
    • 46mm: A3337
  • Aluminium (GPS + Cellular)
    • 42mm: A3335
    • 46mm: A3337
  • Aluminium (GPS only)
    • 42mm: A3331
    • 46mm: A3333

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Material and Finish

• Aluminium Colours/Finishes:
  • Rose Gold
  • Silver
  • Space Grey
  • Jet Black
• Titanium Colours/Finishes:
  • Gold
  • Natural
  • Slate

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Size and Weight

• 46 mm model:
  • 46 × 39 × 9.7 mm
  • 416 × 496 pixels; 1,220 sq mm display area
  • Fits wrists 140-245 mm
  • Weight:
    • 37.8 g (aluminium GPS)
    • 36.9 g (aluminium GPS + Cellular)
    • 43.1 g (titanium)
• 42 mm model:
  • 42 × 36 × 9.7 mm
  • 374 × 446 pixels; 989 sq mm display area
  • Fits wrists 130-200 mm
  • Weight:
    • 30.3 g (aluminium GPS)
    • 29.7 g (aluminium GPS + Cellular)
    • 34.6 g (titanium)

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Hardware and Buttons

• Digital Crown, Side button, Band release button
• Microphone with Voice Isolation
• Speaker / air vent
• Electrical heart sensor; blood oxygen and optical heart sensor

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Controls

• Digital Crown with haptic feedback
• Double tap and wrist-flick gestures
• Siri with on-device processing

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Chip and Storage

• S10 chip with 64-bit dual-core processor; 4-core Neural Engine
• 64 GB capacity

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Sensors

• Electrical heart sensor; third-generation optical heart sensor
• Blood oxygen sensor ¹
• Temperature sensor ²
• Compass, always-on altimeter, high-g accelerometer, HDR gyroscope, ambient light sensor
• Depth gauge to 6 metres; water temperature sensor

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Health & Wellness Features

• Blood Oxygen app ¹
• ECG app ³
• Cycle Tracking with retrospective ovulation estimates ⁴
• Heart Rate app; high/low heart-rate notifications
• Irregular rhythm notifications ⁵
• Medications app, Mindfulness app, Noise app, Sleep app with stages and sleep score
• Sleep apnoea notifications ⁶

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Display

• Always-On Retina display with wide-angle OLEDs; LTPO3 technology
• Ion-X glass with 2× scratch resistance on aluminium models ⁷
• Sapphire front crystal on titanium models
• Up to 2,000 nits peak brightness; 1-nit minimum brightness; 326 ppi

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Audio

• Speaker and microphone; media playback

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Power & Battery Life

• Up to 24 hours normal use ⁸
• Up to 38 hours in Low Power Mode ⁸
• Fast-charge capable ⁹
• 80% charge in ~30 minutes ⁹
• 15 minutes = up to 8 hours normal use ¹⁰
• 5 minutes = up to 8 hours sleep tracking ¹⁰

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Operating System

• watchOS

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Safety

• Emergency SOS ¹¹
• International emergency calling ¹²
• Crash Detection ¹¹
• Fall Detection; Noise monitoring; Backtrack

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Durability

• Water resistance: 50 m (swim-proof) ¹³
• Dust resistance: IP6X ¹⁴

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Connectivity

• Wi-Fi 4 (2.4GHz & 5GHz), Bluetooth 5.3
• L1 GPS, GLONASS, Galileo, QZSS, BeiDou
• Second-generation Ultra Wideband chip ¹⁵
• Apple Pay ¹⁶
• 4G LTE / 5G NR supported on models A3335 and A3337 ¹⁷
• Apple Watch For Your Kids support ¹⁸

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Compatibility

• Requires iPhone 11 or later (including SE 2nd gen or later) with iOS 26 or later

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Footnotes & Disclaimers

• ¹ Blood Oxygen app is for wellness only, not for medical use.
• ² Temperature sensing is not intended for medical use; available only on Series 8+, SE 3 and Ultra models.
• ³ ECG app for users 22+; not a diagnostic tool; not available on SE models.
• ⁴ Cycle Tracking should not be used for birth control or diagnosis.
• ⁵ Irregular rhythm notifications not for users under 22 or those previously diagnosed with AFib.
• ⁶ Sleep apnoea notifications for users 18+; not intended for diagnosis or treatment.
• ⁷ Ion-X glass has ceramic coating giving 2× scratch resistance vs Series 10.
• ⁸ Battery life varies by use, configuration, network and conditions.
• ⁹ Fast-charge times vary based on adapter, region, settings and battery condition.
• ¹⁰ Fast-charge testing performed on drained units; times measured from Apple logo appearance.
• ¹¹ Emergency SOS and Crash Detection rely on network and carrier availability.
• ¹² International emergency calling available only on supported models; availability varies.
• ¹³ Water resistance 50 m (ISO 22810:2010); not for scuba, waterskiing, or high-velocity water.
• ¹⁴ IP6X dust resistance.
• ¹⁵ Ultra Wideband availability varies by region.
• ¹⁶ Apple Pay requires a supported card issuer; availability varies.
• ¹⁷ Carrier plan required; international roaming not supported.
• ¹⁸ Some features unavailable when set up under Apple Watch For Your Kids.