It's Android onboard the Xiaomi Mi 8 Pro, but with Xiaomi's own MIUI user interface over the top. It's version 9.6 of MIUI Global, meaning it has Google Play and all the usual apps and features we'd expect from an Android phone. We like the look of MIUI. It's clean, the icons are well-designed, the menus aren't frustrating, and it's frequently updated. However, there are some annoyances that stop us wanting to use it — not least the notifications on the Mi 8 Pro.