This is my version of a game clip for the Steelseries Stratus XL and Samsung Galaxy S7 and S6.
(Update) You can also use the any phone model with a (printed) case and glue the case to the model.
There is a version without a case and with the Olixar Ultra-Thin case (for the S7) I use.
I also included files with and without built in support.
The Solidworks files and .stp (step) files are available too.
It's not a difficult print. Use the my build in support or add your own. Print in the resolution you like. I like 0.2mm layers because it looks good and is fast)
I used PLA for this print (and the dimensions are also designed for PLA)