When Xiaomi takes the stage, it’s never just about one gadget—it’s about building a world. At its “Human × Car × Home” ecosystem event in China on June 26, 2025, the company unveiled two fresh faces in its wearables lineup: the more compact Watch S4 41mm and the all-new Smart Band 10. While exact global-release dates remain under wraps, these devices underscore Xiaomi’s push to marry style with serious health-and-fitness chops.

Xiaomi Watch S4 41mm

Think the original Watch S4 is just a bit too big? You’re not alone. The new Watch S4 41mm trims the dial down without skimping on marquee features. It’s 1.32-inch circular AMOLED display pushes 466×466 pixels at 60Hz and can blast up to 2,200 nits of peak brightness—bright enough to outshine most summer skies. Housed in a slim 9.5mm stainless-steel case and tipping the scales at just 32g, it’s one of the lightest full-feature smartwatches around.

Under the hood, Xiaomi has upgraded the health-tracking arsenal with a 4-LED + 4PD heart-rate module that promises more precise readings, whether you’re chasing PRs on pavement or doing laps in the pool (a dedicated swim-HR mode is aboard). The brains of the operation are a tweaked Xring T1 chip whose new modem runs 35 percent more efficiently than the one in its larger sibling. The result? Up to eight days of battery life on a single charge.

Xiaomi knows that one size—and one strap—doesn’t fit all. The Watch S4 41mm starts at CNY 999 (about $140) for the TPU-strap model, available in classic Black or fresh Mint Green. Leather lovers can upgrade to a brown strap for CNY 1,199 ($167), while those craving a hint of Milanese shine can opt for the metal-mesh version at CNY 1,499 ($209).

Xiaomi Smart Band 10

Don’t let the Band chassis fool you—the Smart Band 10 is a meaningful step up from last year’s Mi Band 9. The 1.72-inch AMOLED panel grows ever so slightly, still flickering at 60Hz but now cranking up to 1,500 nits of local peak brightness. Slimmer bezels lend it a more polished, nearly bracelet-like look, and for the first time, a ceramic edition joins the lineup—bringing a premium material to markets beyond China.

Inside, Xiaomi has slipped in a 9-axis motion sensor that, alongside improved sleep-monitoring algorithms and an AI-driven swim-stroke detector, aims to map your moves and rest with greater fidelity. Haptic feedback also gets a boost, trading simple buzzes for a more nuanced vibration. All of this runs off the familiar 233mAh battery, rated for up to 21 days in typical use (and around nine days with Always-On Display enabled).

The baseline Smart Band 10 is priced at CNY 269 ($38), making it an easy entry for anyone eyeing a step up from entry-level trackers. The Ceramic Edition, with its lustrous finish, commands a CNY 379 ($52) tag—still aggressive for a fashion-forward fitness band.

With these launches, Xiaomi extends its wearable ecosystem from the gym to the boardroom, and—given its history—global variants won’t be far behind. Expect to see both devices pop up outside China later this year, likely alongside new health-feature rollouts in Xiaomi’s HyperOS platform. For now, these two newcomers promise to keep the pulse of the market—and your own heart—beating a little faster.