Honestly the sheer fact that this kind of technology exists is pretty darn awesome!
What if? Many ask what if the ring is not able to read the real-time heartbeat of your loved one. This might happen due to number of reasons such as lost connection between the HB Rings and the phones, lost network connection, as well as if the other ring is not on the finger or is out of charge. For such cases HB Ring will blink twice indicating that it can't retrieve the real-time heartbeat, and instead it will show you the last stored heartbeat of your loved one. This means that you always keep the heartbeat of your loved one in your ring, which makes HB Ring even more precious.