Comfortable All-day Wearing Ultra-thin at 8.99 mm, weighing just 15g, paired with skin-friendly fluoroelastomer straps, the slim HUAWEI Band 10 offers you a lightweight feel at all hours Pro-Level Sleep Analysis. The smart band can help track your heart rate, SpO2, respiratory rate, and any abnormal breathing, provide high-level insights on your sleep duration, quality rating, deep sleep ratio and more.