Velvet Caviar cases are incredibly stiff. I managed to get them to work okay with iPhone but not with my Samsung phone. I wrote to customer service about that and the customer service rep was unfailingly polite and professional to me, but one of their higher ups was unnecessarily obstructionist and it snowballed into one of the most humiliating and insulting customer service experiences of my life.
I do still order from them because I like their iphone cases for the cute designs and their ring grips work well so far. They also make good MacBook cases. But I am not sure how enjoyable it would be to wrestle a phone with curved display into and out of their cases. Even for iphones, the material is very stiff and squeaky and does yellow over time.
This time I will just get clear cases from Ringke or Spigen or Torras and craft supplies and make my own pretty cases. It's amazing what you can do with some good quality stickers! I did that with my iPhone SE and loved the results.