Samsung had exciting smartphones to show at CES, but it did not publicize them - the foldable Galaxy and a 5G prototype were both at the show. The 5G phone wasn't even hidden like the foldable prototype, which was only shown behind closed doors. It was just not promoted, which made it hard to spot in its glass enclosure at the end of the 5G hardware wall. That is until a Business Insider reporter stumbled onto it. The unit was a prototype, but clearly operational as it was running in demo mode. It probably wasn't connected to a 5G network, though (coverage won't reach Las Vegas...