A:AnswerThanks for your interest! Currently the 15" models are available in Ash Silver only, and only the 13" models come in Poseidon Blue, but there will likely be more configurations in the future.
A:AnswerThis computer does not have a docking station, but you can use any universal docking station or hub, or you can use the USB-C connection with an HDMI adapter.
A:AnswerIt started out great - maybe 6-8 hours depending on how demanding of it you are. But I have accidentally left my charging overnight a couple of times and it has worn down the batter capacity. So don't do that!