Real Calc vs Emulator - My Experience

[Hlib]

In the case of HP calculators, I prefer an Android emulator rather than a real calculator. The emulator does not differ in operation from a real hp-50g or hp-Prime calculator, but it is much more reliable and stable in operation. However, the fear of losing my hp-50g and ti-v200 calculators rendered me buy a separate smartphone and install go49gp (hp-50g) and Graph89 emulators (ti-83+SE, ti-v200) in it, respectively.
The other advantages of off-line emulators indicated here are not so important to me, and it is more convenient to me to use old calculators (from CASIO and TI) at work and at home, which withstand hundreds of thousands of keystrokes every year, are very economical in battery consumption and never fail (at least, this is my experience of using their main calculators).
The best ideas come to me while working with a real calculator using pencil and paper, and not with an emulator or PC :-)