Oppo's Find N2 and Find N2 Flip have interesting takes on the foldable phone.
OPPO Find N3 Flip Review:Big Camera System Upgrade
OPPO patents a foldable phone that looks like a Galaxy Z Flip
Oppo Find N2 Flip vs. Galaxy Z Flip 4: it just got interesting
Samsung can learn a thing (or three) from Oppo's Find N2 foldable
First look at the Oppo foldable phone - the hinges are breathtaking
TECSHINE Suitable for Oppo Find N3 Flip Folding Screen Mobile Phone Case. Leather Cover Shell for Oppo Find N 3 Flip Cell-Phone -Brown : Cell Phones & Accessories
Hey Samsung, don't let Oppo foldable phone users have all the fun - SamMobile
Oppo steps into Samsung territory with first foldable smartphone
Galaxy Z Fold 4, Oppo Find N2 Flip, Moto Razr 40 Ultra: Foldable phones available in Indian market and upcoming launches