It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. 5Telegram Channel avatar size/dimensions The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be: Invite up to 200 users from your contacts to join your channel
from us