- The strap pulls a little hair
- To adjust the length thereof, no news from the operating instructions and comes with no tools, but fortunately Youtube videos show us how to get there with a screwdriver.
- The yellow light is a bit feeble (I have another casio with green light that illuminates the screen much better)
- After reading the last page of the manual, so the battery lasts 10 years, we should use light once a day O_o
- I feel that the battery that came with is in mid-life, it is rather uncool.