The smartwatch with the best battery life I've tested is also one of the cheapest

The Xiaomi Smart Band 9 brings a new level of accessibility to fitness tracking with a well-designed app and a large selection of features for less than $60.

• The Xiaomi Smart Band 9 is available now for $56 on Amazon.
• It's a solid fitness tracker with great battery life that covers the basics in a slim form factor.
• It might not fit everyone, however, and the tracking data lacks deep, personalized insights.

If you want all the features of a smartwatch but can't commit to a big, bulky watch face, you might be interested in a smart band. Xiaomi's ninth-generation popular fitness band has so many new features that it's basically on par with any full-fledged smartwatch, just in a smaller, lighter form factor.

The Xiaomi Smart Band 9 features a compact design with a slim watch face and a bright, 1.62-inch AMOLED display that ...