How to Find Your Lost Xiaomi Smart Band 9 in Minutes

The Xiaomi Smart Band 9 weighs just 15.8 grams for the capsule alone — lighter than most earbuds — and its interchangeable strap system with metallic and braided options means users swap bands frequently, increasing the chances of the capsule popping out and disappearing during a change. Its 21-day battery with BLE 5.4 provides the longest BLE broadcast window of any device in this entire database, meaning EarBuddy can find it weeks after it goes missing. At $29, it's the second cheapest device here, but its pop-out capsule can easily roll under furniture or fall into heating vents — scenarios where EarBuddy's 25-foot scanning range is the only practical solution.