Your numbers for the battery and current consumption don't seem to add up.
Given a 5.45 Wh battery and minimum consumption of 0.4 Watt ("the lowest possible result") I somehow can't quite figure out how you ended up at 22 hours.
Given a basic formula for battery life where Battery Life = Watt Hours / ( Voltage x Current in Ampere) or in this case Battery Life = Watt Hours / Watt I don't see how you get 22 out of 5.45 / 0.4. For that to work you will either need lower power consumption, e.g. 0.2 Watt, or a larger battery..
Don't get me wrong, I'd love for it to be the case, but I think it is a little too optimistic in reality. I'd guess we'd have to wait a couple more years to get that kind of battery life. Same goes for the wifi life of ~16 hours, which is well above the ~13 hours you would get at 0.4 Watt consumption (unless of course that is not the actual "lowest possible result").