What is ultra fast wireless and how is it different than 4g lte?

Galaxy 5 I'm afraid is on it's way out (not charging) and I know the charger and cables are good so I'm shopping around and I see this advertised on the iphones, just curious, googled it and couldn't find a really clear explanation of what it does other than some T1 and towers info, thanks!

Since 5G is not available yet, maybe it refers to its Wi-Fi to support the newest fastest Wi-Fi standards when connected to your home of office LAN.

"Ultra fast" is a completely useless term
unless there's a qualifying statement attached to the claim.

It's like saying something is a "high power" appliance
without specifying the number of watts.

Always
Demand
Real
World
Numbers.

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