128GB internal storage isn't the largest on the market but should do fine for most people. A perfect phone for the kids, or to be used as an extra phone.
From Amazon
OPPO A57s, 4+128GB, Starry Black, 5000mAh Long Lasting Battery with 33W SUPERVOOC, 50MP AI Dual Camera, Sim Free Unlocked Smartphone + UK Warranty
Clove Technology
Oppo A57s