The most common way to turn off a phone screen and lock the device is to use the on-off button. That usually sits on the side of the phone and needs to be squeezed quite tightly. You need to do the ...

We’ve all been there–you get an alert, or a phone call or an alarm goes off–but your hands are full. Maybe you’re standing on the bus holding on. Maybe you’re cooking and your hands are a mess. You ...