Which mobile wallet is the best for Android?
Without thinking twice , Mycelium should be your first option. Electrum might be good for desktop wallets but for android , It's simply not usable (at least , not for the moment).
Mycelium is the most used Android wallet and It will get even more used after they release the new wallet soon[1]
[1] See the "Except a massive upgrade part" :
https://wallet.mycelium.com/