The iPhone 12 and 12 Pro support the 5 GHz band for Wi-Fi connection sharing. A discreet novelty, but interesting, since the iPhone 11 was still content with a 2.4 GHz sharing … much slower.
This is a novelty on which Apple has so far been very discreet, it is nevertheless important: the iPhone 12 and 12 Pro (as well as their future mini and Max versions) allow much faster Wi-Fi connection sharing. The thing was spotted in the first place on Twitter by Steve Moser, a contributor to the specialized site MacRumors, and confirmed shortly after by Aaron Zollo, an American videographer, always on twitter.
As it stands, the new iPhones swap the 2.4 GHz WiFi connection sharing of the old models for the 5 GHz band. A novelty that takes on its full meaning with the arrival of 5G connectivity on new Apple smartphones… even if we are not yet concerned in France.
Apple wants 5G tethering in good conditions on iPhone
As specified MacRumors, 5 GHz WiFi connection sharing is enabled by default on all iPhone 12 models, but it is possible to return to the 2.4 GHz band using a “Maximize compatibility” option available from iOS settings (Settings -> Tethering). Apple specifies, however, that this option may lead to a reduction in speeds for devices connected to the access point (your iPhone in this case).
By allowing its iPhone 12 to support the 5 GHz band for Wi-Fi connection sharing, Apple wishes to allow 5G sharing under good conditions. Still, 5 GHz WiFi has a shorter range than the 2.4 GHz band. To make the most of it, the connected device and the iPhone will therefore have to stay close by, otherwise performance will be reduced. Fortunately, Wi-Fi tethering is mostly done at close range and occasionally.