The Redmi Smart Pen is an active stylus designed for the Redmi Pad Pro series, featuring 4096-level pressure sensitivity, ultra-low latency, and palm rejection for a smooth writing experience. It has an ergonomic, white design with a twist-to-open tip and connects via Bluetooth 5.1. A single charge provides up to 12 hours of battery life and can be done with a USB-C cable.
You can watch this video to see how to connect the Redmi Smart Pen to a tablet: