How to change wifi device name on Android 7?

**How can I change the device name of an unrooted Android 7.0-based [Gigaset GS170 smartphone](http://www.gigaset.com/gigaset-gs170/) so it appears with a meaningful/readable name e.g. in a router's list of connected wifi devices?** Various resources (e.g. [this](http://www.droidviews.com/how-change-phone-name-in-wifi-and-bluetooth-connection-on-samsung-galaxy-devices/) or [this](https://recomhub.com/blog/android-7-0-nougat-how-to-change-device-name-on-galaxy-s6-and-galaxy-s6-edge/)) suggest I should find a line saying *Device Name* in the *About Phone* section of the phone settings. However, I can see no such line there (images before and after scrolling down): As the device is set to German, here are the translations of the items in their order of appearance: - System Updates - Status (Phone number, signal, etc.) - Legal notes - Model type number - Android version - State of security updates - Baseband version - Kernel version - Build number - Adapt creation version **Is there somewhere else I could look for that option, or is it something only supported by specific devices?** There are a few questions about this on this site (e.g. [this](https://android.stackexchange.com/questions/37/how-do-i-change-the-name-of-my-android-device) and [this](https://android.stackexchange.com/questions/66196/change-phone-name-on-nexus-4)) , but those were posted several years ago, when early versions of Android with some "childhood diseases" (read: lack of basic features) were still the state of the art.