I went to Google and found an image of the sch r351 but was not able to find an image for the sch r351c. Are the sizes similar? The sch r351 appears to be the same size as my Blackberry which the pouch fits perfectly.
I believe it will fit your phone well. But is NOT a good fit for any flip phone. Let me know if you have any other questions.
Yes, the pouch would NOT fit a flip phone. The brand name is Ultra. It is in excellent shape and a beautiful design. The stitching appears like it was just made yesterday. It would definitely protect bar phones like you said and smaller HTC phones. Thanks for your comment.