Apple Watch Series 3 38MM 42MM GPS LTE Heart Rate Sensor Charger - Parts
Genuine Apple Watch Series 3 heart rate sensor. This sensor will show signs of previous use like scuffs, scratches or imperfections that do not affect the functionality of the part. Professional installation highly recommended. Ensure you get the correct part by seeing if you have a 38MM or 42MM case size and if you have an LTE or GPS edition. Each size and edition has a unique sensor.