Question about Panasonic TB-40S45AEZ

No. 4k is ultraHD. This one is only FullHD.

Hello elefäntchen
No, the TB-40S45AEZ is not a 4K television.
It is a 40-inch Full HD LED TV with a resolution of 1920 x 1080 pixels. It supports HDR (HDR10 and HLG) and runs the TiVo operating system, which offers smart TV functions. It is also compatible with voice control via Google Assistant and Amazon Alexa. It has a great picture and is a great, affordable TV in this size as a second set.

No, this is a Full HD TV with 1920 x 1080 resolution.

No! Full HD not UHD