How to keep your smartphone coronavirus-free Smartphones are always covered in bacteria, but viruses can also survive there, including COVID-19. We explain how to properly disinfect your smartphone March 25, 2020 https://www.kaspersky.com/blog/smartphone-physical-cleaning/34422/
How to Sanitize Your Smartphone Concerned about the coronavirus? Here's how to keep electronic devices such as phones, tablets, and laptops clean March 10, 2020 https://www.consumerreports.org/smartphones/how-to-sanitize-your-smartphone/
Mophie is selling an $80 wireless-charging UV phone sanitizer June 25, 2020 https://techcrunch.com/2020/06/25/mophie-is-selling-an-80-wireless-charging-uv-phone-sanitizer/
Samsung is selling a wireless charger that also sterilizes your phone There's no saying whether it will make its way to the US July 2, 2020 https://www.engadget.com/samsung-wireless-charger-sterilize-covid-103118714.html
Maybe I'm missing the point but the only way your smartphone is going to be contaminated with a virus is after you have already been exposed and touched the phone.
IMO it is main way to contaminate phone. Keep in mind that placing SARS-COV-2 on healthy skin is not going to make you infected. The coronavirus must be placed on mucus membranes ie by touching you nose, eyes, mouth with contaminated hands. I am afraid that contaminated smartphone may quickly re-contaminate your hands after washing them or disinfecting them with alcohol-water solution.
Samsung’s UV sterilizer and wireless charger officially announced globally July 7, 2020 https://www.theverge.com/2020/7/7/2...one-wireless-earbuds-sunglasses-clean-hygiene
COVID-19 virus can survive on smartphone screens for 28 days, claims researchers Cleaning the gadgets that you and others touch, along with regular handwashing, is a must October 11, 2020 https://www.zdnet.com/article/covid...phone-screens-for-28-days-claims-researchers/
Wow. I wasn't expecting it can last that long. I must admin that I didn't clean my smartphone's screen for some time. I must try to get into habit of cleaning it more often. On the other hand I kept habit of not using my smartphone during eating, even if someone calls.
I don't know if some model of smartphone sanitizer using UV light works or not, but UV light was used for years before pandemic in hospital settings to disinfect surfaces in rooms. They may work. Anyway I just use glass wipes with additional dose of disinfectant (alcohol-water solution).