For Apple Watch Series 4 - Rear Housing With Wireless Charging And Heart Rate Sensor Assembly - 40MM GPS

Restore the structural integrity, original wireless charging performance, and factory-calibrated biometric tracking of your wearable with this Genuine Original Rear Housing Assembly. Engineered to the precise optical-grade specifications, electrical impedance ratings, and capacitive touch thresholds of the Apple Watch Series 4 (40mm GPS model), this module is the definitive workshop solution for shattered rear ceramic shells, deep scratches obstructing the heart-rate/ECG sensor window, or charging failure caused by internal induction coil degradation. This genuine assembly ensures seamless "handshaking" with the Apple S4 SiP, maintaining accurate biometric telemetry and optimal power-transfer efficiency. The Genuine Apple Watch Series 4 | Rear Housing With Wireless Charging And Heart Rate Sensor Assembly (40mm GPS) is engineered with care to restore original hardware performance, enhance system reliability, and extend the functional lifespan of your wearable, ensuring smooth and dependable operation across all your daily needs and long-term professional use.