"Like the Apple Watch, the iPhone 14 Pro will be able to show widgets displaying weather, calendars, stocks, activities and other data while the screen remains at a low brightness and frame rate," wrote Gurman.

The always-on display will also likely be able to show the time, date, and unread notifications indicator.

In line with the Apple Watch, which has featured an always-on display mode since the Series 5, it is likely that Apple will give users the option to enable or disable the always-on display on iPhone 14 Pro models via the Settings app.

Introduced on iPhone 13 Pro models, ProMotion allows the display to drop as low as 10Hz when idle, and display industry analyst Ross Young expects that iPhone 14 Pro models will likely be able to drop down to as low as 1Hz like the Apple Watch for further power efficiency.