> Edit: my ECG knowledge is a bit rusty- 2 points of contact is enough to produce a single waveform reading...
Any just to clarify further... you'd need two points of contact that complete an electrical circuit. You couldn't just wear another watch.
You _could_ wear two watches and have a small wire that you use to connect them together when you want to check, but that's only going to give you Lead I, which is one of the less useful leads (and it's completely useless in isolation).
If you really wanted to get crazy, a watch on your right wrist connected to an anklet on your left ankle would give you Lead II, which could at least get you a look at the inferior aspect of the heart (and therefore the RCA).
But I'm just getting silly now... If you think you're having a heart attack, call an ambulance. They'll do a full 12 (or 15) lead ECG right in your bedroom.
Any just to clarify further... you'd need two points of contact that complete an electrical circuit. You couldn't just wear another watch.
You _could_ wear two watches and have a small wire that you use to connect them together when you want to check, but that's only going to give you Lead I, which is one of the less useful leads (and it's completely useless in isolation).
If you really wanted to get crazy, a watch on your right wrist connected to an anklet on your left ankle would give you Lead II, which could at least get you a look at the inferior aspect of the heart (and therefore the RCA).
But I'm just getting silly now... If you think you're having a heart attack, call an ambulance. They'll do a full 12 (or 15) lead ECG right in your bedroom.