Apple introduced with the operating system iOS 17 maybe most interesting feature from this major upgrade. Module StandBy for iPhone, which allows the device to display a series of widgets on the screen when it is charged on a nightstand or desk.
This new way to iPhone appears to be a continuation of the option Always-On through which the screen iPhone 14 Pro or iPhone 14 Pro Max can be left open permanently, in a smart way – the screen will close completely when iPhone it's in your pocket, left on the table with the screen down, or when no one is in its vicinity.
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How to activate and customize the StandBy mode for iPhone.
Back to the mode StandBy, it will be able to be activated and customized only when iPhone is connected to the charger (wired or wireless MagSafe) and is placed in landscape mode – in horizontal position. Exiting the module StandBy it will be done as soon as the device is disconnected from the power source or is changed from the horizontal position.

iPhone models compatible with the StandBy mode.
module StandBy can be activated on all devices iPhone which endures iOS 17. So the way StandBy not compatible with models iPhone X, iPhone 8. iPhone 8 Plus or older models.
But there is a peculiarity. Module StandBy will keep the screen permanently open on models only iPhone 14 Pro or iPhone 14 Pro Max. Models that also support the “Always-On” whereby the screen can be kept open permanently with low power consumption. For other iPhone devices, the screen will open in mode StandBy only when touched.
How to activate the StandBy mode for iPhone?
module StandBy can be activated from: Settings > StandBy. Once the mod is activated StandBy, several configuration options will open.

After activation, the user can choose to keep the screen open permanently (Always On) when iPhone is in mode StandBy. This is a smart way just like the “Always-On" for display. The screen will stay open in the mode StandBy only when motion is detected around the iPhone.
option Night Mode allows customization of the mode StandBy for the night hours, when iPhone is left on the bedside table during sleep. Widgets will have a dim red light when Night Mode is activated. In addition, opening the screen in the mode can also be enabled StandBy when motion is detected at night.

Also from the mod options StandBy for iPhone, the user can choose whether or not to keep notifications active. Disabling notifications it will be partial. Important notifications will be displayed even if the “Show Notifications” is disabled.
If you have the mod enabled Sleep during the night, then notifications will follow the rules of this Focus.
Customizing widgets in StandBy mode for iPhone.
The coolest feature of this mod is that it can be customized with tons of cool widgets (and it's currently in beta!). Module Standby for iPhone supports useful and interestingly designed widgets.
They can be added to the module StandBy clock widgets, calendar, reminder, notes, app shortcuts Home through which you can control the smart lights in the house, the weather, photos, battery status, etc. All this with different design shapes and sizes.

One of the most interesting widgets of the mod StandBy this Apple Music. A full-screen music player from which you can control your music very easily, no matter what it's on iPhone or on the speaker HomePod.

How to add new widgets to the StandBy mode screen?
To switch screens StandBy for iPhone, all you have to do is swipe horizontally or vertically to change already added widgets. If you hold down the area the widgets are on StandBy, the customization options appear StandBy widgets. You can change the design of the widgets, remove them or add new ones.
For example, if you want to change the pictures that appear in the photos widget, you tap and hold on the screen and then select what kind of pictures you want to appear in the widget. People, landscapes from nature, cities or pictures from a personal album existing in the application Photos.

Two widget display types are supported for the module StandBy: full screen, or split in half (where two widgets can be added).
As we said before, every widget or widget area supports customization.

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In conclusion, with the new module feature StandBy for iPhone, if you haven't bought an iPhone stand yet, now is the time to do so.