SaschaW79111 months ago0+1-1Does 53mm of finger circumference correspond to a size 13 (Swiss) or a size 6 (US)?Show in original language (French)Virginia Parrotta10 months ago000The ring sizes for the RingConn Smart Ring Gen 2 Air correspond to the US standard.For a finger circumference of approx. 53 mm, you should choose size 6 (US).Show in original language (German)Comment