Most Android Wear watches also have an optical heart rate monitor, and they all do turn-by-turn. Fair point on the payments, though. I think only the Sony watc

Most Android Wear watches also have an optical heart rate monitor, and they all do turn-by-turn. Fair point on the payments, though. I think only the Sony watch has NFC, and I haven't heard when/if that will be actually supported by the OS for payments.