There are already attachments or docking stations on the market (usually matching selected products of one company), which are supposed to make working with a telephone similar to the one known from laptops. Another proposition, quite universal, is Sm @ rtDock 15 Touch.
A substitute for a laptop from the cell for users of many smartphones
Let's start with the issue of compliance. First of all, Sm @ rtDock can interact with smartphones dedicated to Samsung DeX and Huawei Easy Projection. These are only a limited number of models of the mentioned producers, but they do not close the list. Most will be devices that simply support DisplayPort USB-C alternative mode. In this case, it may not be equipment literally for everyone, but certainly not only the chosen ones.
Among other solutions, Sm @ rtDock stands out with a touch screen and an additional keyboard. The matrix is really big for such a product, because its diagonal is up to 15 ". You probably expected something more tablet-like and la 10 ". The resolution is the well-known full HD 1920 x 1080 pixels.
Strange sales practices
As ports, we find microUSB for additional plug-in devices, USB-C as charging and the second C leading to the smartphone. Thanks to miniHDMI we will hook another screen. The main module has a built-in battery, which is supposed to last for about 7 hours. The keyboard is not a wired model, but a Bluetooth one.
The station has already been sold, but the British manufacturer does not boast of the price. Requires contact to submit a proposal. There is no denying that this is a very strange procedure. For now, it is directed to the UK market, but probably versions with a different keyboard layout will be released soon.