Can you sense my heartbeat?
- Replace the rear plastic cover and the four sensor lenses on the back of a 38 mm Apple Watch and bring back the beat.
- The Sport Edition Apple Watch is originally equipped with Ion-X Glass lenses. The Steel Edition is originally equipped with Sapphire Crystal lenses. The rear covers are functionally cross compatible but differ in their resistance to scratches, chips, and cracks.
- Beware: This is not an easy part to replace. Be certain you know what you are getting yourself into before you buy this part.