The box uses Google TV, whereby apps can be installed via the Google Play Store. It should be possible to install the Sky app on the box via this official channel.

You can pair any BLE remote control that is made for Android TV.

The third-generation Xiaomi Mi Box S still only has a USB 2.0 port, not USB 3.0, as confirmed by the official specifications and several sources.

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To use platforms such as Netflix, Prime Video or Apple, you generally need to have a subscription to these services. The Xiaomi TV Box S (3rd Gen) lets you connect to these platforms via apps, but accessing content requires an active subscription. You can connect directly to these services via the box, but an account and subscription are required to access their content.