You can also use ultraviolet sanitizers for small items like smart phones. They are also 100% dry so the use on electronics is safe.

There are several name brands but I won’t mention any here. If you do your own research you can easily see that UVC spectrum light does a good job killing bacteria and viruses.

I routinely clean my phone, keys, credit cards, and other small items that get handled by myself and others with my sanitizer.