Pubu Wear is a free smartwatch app developed by Shenzhen Yawell intelligent Technology Co.Ltd. It is designed for Android devices and falls under the Lifestyle category, specifically Health & Fitness. With this app, users can track their steps, heart rate, sleep, and exercise activities. Call and SMS notifications are also included as core functions of the app.

The app allows for seamless communication between the user's smartphone and smart wearable device through Bluetooth 4.0. When a user receives a call or text message, the corresponding information is pushed to the user's smartwatch. This key function requires phone, contact, and SMS permissions for proper functionality. Supported smartwatches include models like Watch Grace p47.