After 2 weeks I had that the display scratched very quickly now unfortunately notice.
After a major hike, the display had become really milky in some places. (Although the pedometer was worn only in your pocket without any other Utensielien.)
The damage I could luckily with a polishing agent, which is used for cell phone displays, resolve.
I now have my from a screen protector, for mobile phones, cut and pasted a sheet.
That's why I now deducted a star.