Xiaomi Redmi Smart Pen (56644) – White

The Xiaomi Redmi Smart Pen 56644 is an active stylus crafted for the **Redmi Pad Pro** series. Featuring advanced specifications like 4 096 levels of pressure sensitivity, 240 Hz touch sampling rate, and USB‑C charging, it’s tailored for precise writing, sketching, and creative tasks. :contentReference[oaicite:0]{index=0}

Key Features

• High pressure sensitivity: 4 096 levels, enabling nuanced line control and shading. :contentReference[oaicite:1]{index=1}
• Touch sampling rate: 240 Hz, for responsive drawing and interactions. :contentReference[oaicite:2]{index=2}
• Activation force: ~10 g (at 90° angle) to register a touch. :contentReference[oaicite:3]{index=3}
• USB‑C charging: Charges via USB‑C cable. :contentReference[oaicite:4]{index=4}
• Bluetooth connectivity: Uses Bluetooth 5.1 for functionality and communication with tablet. :contentReference[oaicite:5]{index=5}
• Two buttons: Includes a screen capture button and a writing / mode button. :contentReference[oaicite:6]{index=6}
• Ergonomic design: Comfortable grip, rotating tip, and balanced build (157 mm length, ~12.7 g weight) :contentReference[oaicite:7]{index=7}
• Compatibility: Primarily for Redmi Pad Pro (and in some listings, Redmi Pad 2) :contentReference[oaicite:8]{index=8}

Specifications

• Model Number: 56644 :contentReference[oaicite:9]{index=9}
• Color / Finish: White :contentReference[oaicite:10]{index=10}
• Length: 157 mm :contentReference[oaicite:11]{index=11}
• Weight: ~12.7 g :contentReference[oaicite:12]{index=12}
• Sensitivity Levels: 4 096 :contentReference[oaicite:13]{index=13}
• Sampling Rate: 240 Hz :contentReference[oaicite:14]{index=14}
• Activation Force: ~10 g at right angle :contentReference[oaicite:15]{index=15}
• Connectivity: Bluetooth 5.1 :contentReference[oaicite:16]{index=16}
• Charging Type: USB‑C :contentReference[oaicite:17]{index=17}

Benefits

• Delivers accurate pen input for drawing, note taking, annotations and other creative tasks.
• Low latency and high sampling rate let your strokes appear swiftly and smoothly.
• Two buttons for quick shortcuts (screen capture, switching modes) add convenience.
• Lightweight and ergonomic build ensures comfortable extended use.
• Official / first‑party stylus ensures compatibility and better integration with the tablet’s software.

Known Issues & Considerations

• Some users report that the pen stops registering input after a while, though buttons still work. :contentReference[oaicite:18]{index=18}
• Some units only work while connected to the charger (no functionality otherwise). :contentReference[oaicite:19]{index=19}
• The magnetic case or magnets in a cover may interfere with pen behavior. :contentReference[oaicite:20]{index=20}
• Battery life can vary significantly. Some users compare different part numbers (56644, 67403) and observe differences in endurance. :contentReference[oaicite:21]{index=21}
• Availability is limited—many stores are out of stock. :contentReference[oaicite:22]{index=22}

Package Contents

One Xiaomi Redmi Smart Pen (model 56644) USB‑C charging cable Replacement nib(s) Quick start / warranty documentation

Keywords

Redmi Smart Pen 56644, Xiaomi stylus, Redmi Pad Pro pen, active stylus Bluetooth 5.1, 4096 pressure levels, USB‑C pen, tablet stylus.