Frankfurt Airport duty free for apple products

Hello everyone I’m new here and hope that’s the correct sub do this In two days I’m taking mi flight back to my country from Frankfurt flughafen and wanna buy a new Apple Watch series 11, will I find good prices and stock at the airport or duty free there? I’m actually at Nürnberg and can’t find any good resellers. Pd my flight departures at 21 and my train arrives to the airport at 18 so it’s impossible to move on the city and go for it.

Thanks everyone