For Durchschnittsarm yes, otherwise no.

The pocket for the insertion is very tight, but you get the mobile phone (in my SGS2) with a little taste good in and out.
The film is very loose and makes it difficult to operate the touch screen a little, with practice to master but.

Now the really big shortcoming and KO criterion, the strap for attaching to the upper arm is so short that it all fits for an average women arm.

(Is thought such a product for the) For each trained people with normal to greater upper arm extends the length under any circumstances.
This makes it pinches off the arm and ensures a discomfort.

For some "lush" built athletes (from 32cm upper arm circumference) absolutely unsuitable!