No difference between letterbox and zoomeven on simulator?

Hello

Zoomeven seems to be the coolest option because you are sure to use the whole screen whereas letterbox could put black bars on the screen device.
But i have to be sure that in all standard mobile configuration i will have no pb with zoomeven (like important button or information could be no more accessible because out of the screen).

The pb is that in the corona simulator, when i change letterbox to zoomeven and try several config (iPhone 6,7, samsung, etc…), everything looks similar, i notice nothing different. There is no change, so i don’t understand how it works.

Please could you give me a size config to use (or another way to do it) on the simulator to be able to visualy notice the difference between these 2 modes ?
Thanks

iPhone is similar to Samsung in screen dimensions so it will be minimal.  Try iPad as it is more square.

iPhone is similar to Samsung in screen dimensions so it will be minimal.  Try iPad as it is more square.