Purple train wreck and sour blueberry

Hello ! They are healthy with slight deficiencies but nothing that won't let them get fatter. I would say a slight nitrogen def and slight magnesium deficiency (purple stems except if it's due to the genetic). 😁👍

The best way to check it's with a jewelers loupe and see the thricomes. Short of that, wait until the calyxes have swelled and the hairs have turned dark. In your pictures the plant looks ready, I would give them a couple more of days and harvest