Huawei Band 4 Key Features 0.96” Colour Touchscreen 6-day Battery Life Built-In USB Charging 5ATM Water Resistance Heart Rate and Blood Oxygen Tracking Overview 0.96-inch Colour Touchscreen: The Huawei Band 4 smart band comes with a 0.96-inch TFT colour screen. The 2.5D display offers you a stunning visual experience, engaging interface, and smart message notifications, so you can always stay in touch. Creative Built-In USB Charging: No need to worry about different cables and chargers. The built-in USB plug of Huawei Band 4 fits into all average USB chargers, so you charge it anywhere and anytime. A single charge powers the band with more than six days of usage time, so you rarely must stop and charge up. Smart Heart Rate Tracking: Thanks to the professional optical devices, processing chips and AI algorithm, the Huawei Band 4 monitors your heart rate accurately. It also provides intelligent reminders via vibrations if your heart rate exceeds the maximum average heart rate, working to keep you healthy. 5ATM Water Resistance: Huawei Band 4 supports 5ATM water resistance and sweat resistance so that you can wear it in heavy rains or washing hands without worrying about water damage. Box Contents Huawei Band 4 Quick Start Guide Safety Information Guide Warranty Card