I have a question about this phone and S9+. Does the fingerprint, iris and face recognition all work as real phone? Does the phone work on T Mobile in the USA? Can it boot up to show T Mobile logo at start up or just Samsung? What are the color choices? How many shipping days to USA? Thanks. Looking forward to your reply and making purchase. Reply:s9 plus has fingerprint,iris,face recognizion all work as real one,this phone work on t-mobile in USA,also can set boot up to show t-mobile logo. dhl 3-4days.color please check out specs. ...