In my opinion, the best Bitcoin wallet for Android is the Bitcoin Wallet (also known as Schildbach wallet).
It is open source, non-custodial, got native segwit addresses and other features I like. The only thing one needs to be aware of is the fact this wallet does not reveal the seed to you directly but rather encrypts it and allows you to save it locally as a file (can be also be saved in other places after encryption).

Also, allows you to choose the fee you want to pay, but you can't accurately type how many sat/vB you want to pay, the minimum is about 2 Sat/vB last time I checked.

I personally used it for a year.