The few phones we've outlined here are all great phones for a low price. However, there are countless others that kids will still love. Whether you buy a used LG G4, an old water-resistant Galaxy S5, or even lesser-known phones. If you can afford it, the OnePlus 3 is the best phone on the planet for $399.
The Moto E is one of the cheapest phones around, so it won't matter if it gets lost or broken. There are several phones around for under $100, like the Samsung Galaxy On5. Even the Aclatel OneTouch Pixi 3.
A few honorary mentions go out the the super cheap ZTE Citrine, Cubot Z100, the HTC Desire 510, or even the LG G Stylo even though it's a little old. Another brand called Wileyfox have some super cheap phones if you can find them for sale. It all comes down to a parents preference, needs, or the price. A refurbished Galaxy S6 would be a great phone, or several of the cheap phones detailed here today will be perfect for any child for at least a year or two.
Get what you think is best, or can afford, and make sure to setup some parent controls, restrictions and rules. It's a good idea to check out the wide array of Parent Control apps from the Google Play Store too. Good luck.
As an Amazon Associate I earn from qualifying purchases.