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Midnight aluminum 45mm case with matching fluoroelastomer sport band

Apple

Apple Watch Series 9 45mm GPS Cellular Aluminum Midnight Sport Band

SKU CH-E03Z-QXSR3

GPS + Cellular aluminium smartwatch with 45 mm Always-On Retina display, 64 GB storage, heart-rate, ECG and 50 m water resistance

  • ColorMidnight
  • TypeWatch
  • Size45mm
  • Case Diameter45
  • Case MaterialAluminium
  • BandSport Band
  • Cellular freedom lets you call, text and stream without your iPhone
  • 9" Always-On Retina OLED reaches 2000 nits for clear outdoor visibility
  • S9 SiP with 64 GB storage powers responsive apps and on-device Siri
  • Water resistant to 50 metres and IP6X dust resistance for swim-ready durability
  • ECG app, high-G accelerometer and Crash Detection deliver advanced health and safety insights

45mm Aluminium Smart Watch with Cellular

The Apple Watch Series 9 in Midnight aluminium measures 45mm and includes an eSIM for 4G LTE connectivity. It runs on the Apple S9 SiP with a 2-core CPU and 4-core Neural Engine, offering 64 GB of storage. The device is designed for users who want calls, messages, navigation and music streaming without relying on a paired iPhone.

1.9-Inch Always-On Retina Display at 2000 Nits

The LTPO OLED panel reaches a maximum brightness of 2000 nits with a resolution of 396 x 484 pixels behind Ion-X glass. Water resistance is rated to 50 metres and IP6X dust resistance protects the internals. Bluetooth 5.3 and Wi-Fi 4 (802.11n) handle wireless communication alongside GPS, GNSS, Galileo and BeiDou positioning.

Medium/Large Midnight Sport Band and Charging Cable

The box contains a fluoroelastomer Sport Band sized for medium and large wrists plus a charging cable. Health features include a third-generation optical heart sensor, ECG app, high-G accelerometer and always-on altimeter. Safety tools cover Emergency SOS, Crash Detection and a Compass with Waypoints and Backtrack. NFC supports contactless payments.

Highlights

  • Cellular freedom lets you call, text and stream without your iPhone
  • 9" Always-On Retina OLED reaches 2000 nits for clear outdoor visibility
  • S9 SiP with 64 GB storage powers responsive apps and on-device Siri
  • Water resistant to 50 metres and IP6X dust resistance for swim-ready durability
  • ECG app, high-G accelerometer and Crash Detection deliver advanced health and safety insights

Specifications

BrandApple
ColorMidnight
TypeWatch
Size45mm
Case Diameter45
Case MaterialAluminium
BandSport Band
Band MaterialFluoroelastomer
CompatibilityApple Watch
Water ResistanceYes
WirelessYes
BluetoothBluetooth 5.3
FeaturesHeart Rate Monitor

Questions about this item

How do I pair the Apple Watch Series 9 45mm with my iPhone using Bluetooth 5.3?

Open the Watch app on your iPhone, hold the watch near the phone, and follow the on-screen prompts; the S9 SiP handles the secure link automatically.

What maintenance will the Midnight Sport Band and 50-meter water resistance need over time?

Rinse the fluoroelastomer band with fresh water after salt or chlorine exposure, dry it thoroughly, and check the Digital Crown for debris to keep the seals effective.

At what point does the Always-On Retina display hit its 2000-nit ceiling during sustained outdoor use?

The 1.9-inch LTPO OLED reaches 2000 nits maximum brightness in direct sunlight, so the limit appears when ambient light exceeds that output level.

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