LG C4 or Nvidia Shield

Hello,

TLDR - my router is on the other side of the house vs my C2 OLED, therefore i get buffering issues on plex via native LG OS and Firestick. The TV is too big to fit!!

I need another smaller OLED, which i will move closer to the router.

The Nvidia shield is quite pricey around $200 (1/3 of the price of a new C4 on promotion) , but i am just wondering if i upgrade to the C4, whether there is a need for the Nvidia Shield?

I hope that LG OS for the C4 using Plex has all the features and Dolby Vision/ Dolby Atmos codecs etc? I would like to confirm and get opinions before i make a decision.

Thanks.