Your phone. Put it away when you're walking. You're going to fall.
Fun fact: CPSC makes sure cell phones, headphones, smart watches, and dozens of electronic products are safe. If they're not, we'll conduct recalls with companies to get those products out of the market. If you think you found an unsafe product, report it to https://www.SaferProducts.gov. The data: Between 2013 and 2022, an average of 5,100 young people a year between the ages of 13 and 24 were injured in incidents related to Phones while moving.