1. The bracelet is well adjustable in size, but not very flexible. My old (iPhone 4) had more stretch shares in the material. This could also make bicep workout at the gym. With a Sportwrap this should sein.Naja possible, but it works.
2. The foil through which one sees the display, or see should, is totally unacceptable. It is matt. You can hardly see through. Especially if you're in the arm and can not draufschauen frontally it is bad. One wonders if the chief designer has a vision disability. So far, I was no logical reason for the matte film to mind. Possibly it might have been thought of as anti-glare in sunlight. Unfortunately, that has gone sharply into his pants. We can already see without sunlight nothing. This makes the otherwise good running bracelet unfortunately unusable. Go back to Amazon.
Note: Hatt read some other reviews that the film should be slightly opaque. Thought so, it will probably not be that bad. Well I have to say, but, it is so bad!
No purchase recommendation!