When they stated 'do come with a potential health hazard' I stopped reading. There is a mountain of scientific evidence that cell phone radiation does not cause side effects.
In the US. SAR rating for 1.6 and below is deemed safe. Also, this articles only listing SAR measures when the phone is on your ear and toy are on an active call. The measure otherwise is a lot less. Important distinction.
Part of that mountain is things like the electromagnetic radiation you're subjected to every time there's a lightning strike within a few miles and every time you go out into the sunshine. We evolved to live with that. (And a single lightning strike a mile or two away probably lets your body absorb more EM than a lifetime of cellphone use.)