The Xiaomi Mix Fold 2 is among the thinnest foldables around.
Unfold the pair and the Xiaomi Mix Fold 2 has another clear screen size advantage.
If you like your displays big, then the Xiaomi Mix Fold 2 has a clear size advantage over the Galaxy Z Fold4.
Multitasking on the Galaxy Z Fold4 is far more advanced - it's easier to open an app in split screen view and you can have multiple instances of your browser app, which is something the Xiaomi Mix Fold 2 cannot do.
Camera-wise, there's a Leica-branded 50MP 1/1.56" Sony IMX766 optically-steady main camera.
The Xiaomi Mix Fold 2 also has a decent 4,500mAh battery with impressive 67W charging.