1. Replacement back cover with heart rate sensor for Samsung Galaxy Watch6 40mm SM-R930/R940/R950/R960. 2. Replace your broken or unusable item with a new one. 3. Each item has been checked and in good condition before shipping. 4. Completely fit and work. 5. Professional installation is highly recommended. We will not be responsible for any damages to your device that you may cause during the changing of replacement parts.
