They typically feature a stainless steel or 18k rose gold base with a unibody sapphire crystal housing. This sapphire surface is designed to be virtually unscratchable.

If the partner's ring is active and connected to data or Wi-Fi, it transmits their heartbeat data back. The requesting user then feels a vibration synced to the heartbeat and sees a flashing red light on their own ring's surface.

functions by utilizing an integrated heart rate sensor and a connection to a mobile application.