You can't use intent from a watch face,

Device-apps and widgets run differently and have access to different things (device apps have more).  A widget is for a "quick view" and times out in a short amount of time, while a device app can run as long as the battery holds out.

A background service can run no more than every 5 minutes and can run for no more than 30 seconds at a time.

ok, wf, df I know what is this...

widget is mini app run after press left middle button  in fenix 6 and can show something in glance or full screen

and watch app is like app "countdown timer" and Garmin's "Find My Car" and it's start after user run it

is it correct?

but i can't find place in watch for app, is it in "activity folder"?

ok, I've found it in

Class: Toybox.System.Intent

so if somebody decide to drain battery it can start watch app which run in background and for example uses timer and in onTimer reading/checking something every piece of time and can show alert (like countdown timer a I can start it, put in background and check watch face or something else and then time is over it shows me and message/alert)

Yeah, a widget is like a mini device app. As a matter of fact, widgets are going away with CIQ 4 and their functionality will be merged with device/watch apps.

_psx_ said:

but i can't find place in watch for app, is it in "activity folder"?

Yep. Installed CIQ watch apps will appear alongside activities like "Run" or "Bike". Some older watches may have a separate "sub-folder" for CIQ apps.

let's find solution

I'm not sure but It's possible to write app on phone (android/iphone).

Can application on phone be connected on line with watch by BT?

Can watch face communicate with app on phone and send something to it and phone app show alert like "find my phone"?

Does it mean that there is nothing to invest in widgets? Will they disappear ciq4?

Only on devices that have CIQ 4.  All current devices will stay on CIQ1-CIQ3.