https://www.gamespot.com/articles/pokemon-lets-go-pikachu-and-eevee-everything-we-kn/1100-6459253/

Can You Trade And Battle Online?
Yes! You can connect with other people in Let's Go Pikachu and Let's Go Eevee via both local wireless and Wi-Fi, Masuda confirmed. Though you can battle online, there are no ranked battles in the Let's Go games.

どっちやねん
ゴミ通またやらかしたんか