Oppo f1s is best mobile for me because its fingerprint sensor is always good lock for me. I was choose our fingerprints and my brother sister etc. because in oppo f1s u choose many fingerprints like fingerprint 1, fingerprint 2, fingerprint 3, etc I was choose my fingerprints and my brother or sister and also my frnd disha’s fingerprint. because these also my lovely and good frnds. thanx for reading my review.