Question about Lenovo ThinkVision T34w-30

So far I couldn't notice any difference. From my understanding one is EU version and the other is the CH version.

I haven't been able to find any real differences either. Unfortunately, there are errors in the specifications in the product view, because if you compare the technical data sheets, there are none of these differences. The only differences in the data sheet are the special features, although as I understand it, Low Blue Light and Think Colour are also available on this model. Only Smart Power is effectively greyed out in the monitor menu... maybe this is not possible with this model or I haven't found out yet. So from my point of view there are no real differences, except that the EU version comes with the EU cable and the CH cable.

Display resolution says WQHD and the other says UWQHD. Pixel pitch: 0.23 and 0.05 mm.
Are there any other differences? (than only EU and CH)