Yes — on Google Play
Pokémon Champions has a Google Play listing.
App Store
On Google Play
Is Pokémon Champions on Android?
About Pokémon Champions
Enjoy Pokémon Battles on Mobile Devices! Have fun battling Pokémon with ease on your mobile device! ■ Battle Pokémon with Ease! In Pokémon Champions, you can enjoy Pokémon battles against Trainers from around the world. You can play in Ranked Battles, featuring serious matches against players across the globe,…
Pokémon Champions is listed on both the App Store and Google Play from The Pokemon Company, so you can install it on Android phones and tablets. The Play Store listing shows 5,000,000+ installs.