[paxys]

Communication seems to be a major selling point of the pin going by the demo, but I'm pretty certain it is impossible for it to work with iMessage, WhatsApp etc. in the way that is shown, so I'm wary about the actual advantages.

[asadm]

You can always reply to notifications. Just like non-apple smartwatches allow.

[paxys]

This is a standalone device with its own cellular connection. There is no smartphone involved and no notifications to reply to.