First I looked at the original part of Nokia (HH-23) for my 808 PureView, which does not convince me. Due to a test on the web I became aufmersam on these inexpensive tripod adapter and have given him. Although I was skeptical whether my Nokia 808 would fit due to the due to the optics and the protective sleeve thicker housing dimensions at all, my concerns were fortunately resolved.
To make it short: The smartphone will not budge in the holder, and also does not interfere with pushbuttons of the unit.
The metal ring makes a more robust impression than my previous Tripod Holder plastic I used the N8.
All in all, the part worth the money.
Finally, a big compliment to the suppliers Pearl: Ultra Fast shipping and a very low shipping price.