If you're looking for a new phone that will see years of support, I'd recommend the CMF Phone 2 Pro. You can pick it up for $279 and its customizable design means your child will have fun making ...

Rear camera: 64MP + 13MP Front camera: 32MP Price: Starts at $600 If you are looking for brand new, this phone is hands down, the cheapest foldable phone that you can get.

The phone will cost €599 (~$650) when it goes on sale. This will be substantially cheaper than foldables like the Galaxy Z Flip 5 (€1,199) and Motorola Razr 40 (€900) in Europe.