The Galaxy Z Flip 5 is toddler proof...
This is my first folding phone. I open and close the phone so carefully. I set it down on the dinner table yesterday and went to go use the restroom. To my horror, I come out to my 3 almost 4 year old nephew roughly opening and closing the phone saying "wow, cool, how does it do that?" My first instinct was to run and snatch it away but I was curious to see how it held up. He bend it back and closed it hardly a few times and nothing. It held up wonderfully! No hinge damage or screen damage.
I will no longer be leaving it on the table though.