Apple 45MM/ML Sport Band for Watch – Starlight

The Apple Watch 45mm (Starlight aluminum case) paired with the Starlight Sport Band (M/L) is a performance-focused smartwatch engineered for all-day health monitoring, fitness tracking, and seamless iPhone integration. It combines Apple’s S9 system-in-package with an edge-to-edge Always-On Retina LTPO OLED display, an array of biometric sensors (optical heart sensor, ECG, blood oxygen), and ruggedized ingress protection suitable for everyday wear and athletics. 

Key Feature:

• Processor: S9 SiP with 64-bit dual-core CPU and 4-core Neural Engine for fast on-device processing and improved Siri performance.

• Display: 45mm Always-On Retina LTPO OLED (edge-to-edge) with high peak brightness for outdoor visibility. Ideal for glanceable metrics during workouts.

• Sensors & health: Third-generation optical heart sensor, ECG capability, Blood Oxygen (SpO₂) measurements, high-g accelerometer, ambient light sensor, and compass with backtrack/waypoints.

• Durability: Water resistant to 50 meters and IP6X dust resistant—suitable for swimming and most outdoor activities.

• Connectivity & storage: Bluetooth 5.3, Wi-Fi (802.11n), L1 GPS with multi-GNSS support (Galileo, BeiDou), and up to 64GB capacity on Series 9 variants.

• Battery & charging: Built-in rechargeable lithium-ion battery with typical battery life up to ~18 hours (varies with use) and USB-C magnetic fast charging cable compatibility.