Android users’ text message bubbles show up green, and you can’t send the “tapback” reactions (or rather, they show up as a “so and so has liked your post” rather than a thumbs up icon). This is annoying for Android users and it’s kind of tedious for iPhone users to have to vet group chats to see if there is a single Android user who might be annoyed. Apparently this is factoring into people’s phone purchasing calculus.