very nice, 10meters is a 30foot radius, thats plenty! very excited for this then!When I'm home my phone is usually left in my kitchen and my Pebble seems to pick up notifications just fine anywhere in my house (can't really speak for audio quality). I'm sure the Apple Watch will be similar.
Close, the BT iPhone connection is supplemented with point to point WiFi. Depending on how Apple implements the secret sauce you could go a little farther than standard BT range.I believe the BT that is being used for the connection is different than regular Bluetooth and has a bit greater range. My Garmin fenix 3 will get notifications anywhere in my house, which is a single story, about 1500 sq ft. Even being on the opposite end of the house, it still gets it. I am sure the Watch will match that.