Xiaomi has started selling the Mijia Heated Posture Support Cushion in China. The accessory attaches to an office chair, offers three heating modes, and includes an infrared sensor that notifies the user to take breaks after 40, 90 and 120 minutes of continuous sitting.
The cushion is built on a composite‑nylon frame, contains memory foam, and is priced at 186.65 yuan (about $28). It also features ventilation holes and runs on a rechargeable battery.