When the Apple Watch was first talked about, and after its release, I noted that the sensor deployment was stupid. There, I said it. Homer Simpson stupid. There's a reason health workers read from the inside of your wrist. That's where the plumbing is most exposed. Well, reports indicate that Apple (may have) has admitted defeat. Here's hoping. OTOH, having the sensors in the band diminishes (and therefore replaceable, if Tim says you can) the planned obsolescence paradigm that Apple so loves: no upgrade, just buy the next version. We'll see.