The first disappointed thing is Vivo Y55s comes with Snapdragon 425 serise CPU, which is quite old and battery consuming. I think it should comes with atleast Snapdragon 6 serise processor as the battery is very low ( only 2730mAh) .
3GB RAM is good, but internal storage is only 16GB, where people are expecting atleast 32GB. I think Vivo should kept this thing in mind next time.
5.2 display with 2730mAh battery, I think Vivo is kidding. It shoult be 4100mAh or so.
Display quality and touch sensors are too good.
So, if you are a heavy user or heavy gamer then I think you never go for that, otherwise the phone is good.
GOD BYE, TAKE CARE