Pokemon Sword vs Shield: Which one should you buy?

You choice should depend on the version-exclusive Pokemon and the Gigantamax Raids you intend to carry out.

Pokémon Global News - VERSION EXCLUSIVES There are several differences between Pokémon Sword and Pokémon Shield, and one such difference is the species of Pokémon that appear.

Nintendo on Pokemon Sword/Shield sales, surpasses record set by Pokemon Sun/Moon

Pokémon Sword and Shield Expansion Pass - Bulbapedia, the community-driven Pokémon encyclopedia

Pokémon Sword and Shield': Here's the Full List of Returning Pokémon

Announcing the Pokémon Sword and Pokémon Shield Expansion Pass!, Official Website

Pokemon Sword and Shield - LOST ORIGIN Booster Pack

Pokémon: Sword & Shield, Vol. 1, Book by Hidenori Kusaka, Satoshi Yamamoto, Official Publisher Page

Your adventure continues with the Pokémon Sword Expansion Pass, containing new stories to experience, new Pokémon to encounter, and new Wild Areas to

Pokémon Sword Expansion Pass

Most valuable Pokemon cards you can pull in TCG Sword & Shield set - Dexerto

Pokémon Sword & Shield: Complete Breeding Guide

Should You Buy Pokemon Sword or Pokemon Shield? (Officially Spoiler-Free)