In Europe its 450 Euros for the cheapest men version and 400 for the cheapest woman version. So if partners want to send their heartbeats to each other, that's 850 Euros in total.
In any case – that's a lot for a category that makes intuitively less sense than when the first iPhone was presented. It would be a nice have to, but I thought if it is 300 Euros max, it could be interesting. For what Apple wants, it's too much.