Introducing the Xiaomi Watch S4: A New Era for Smart Wearables
The Xiaomi Watch S4 has officially launched globally, stepping into a role that demands excellence, following the widespread acclaim of its predecessor.
Unboxing and Initial Impressions
This watch is packaged with a durable fluororubber strap and features a 2-pin magnetic charger. Notably, it still utilizes a USB-A plug—given that we are now in 2025, many would have preferred the modern convenience of a USB-C connection instead.
Experience the unboxing of the Xiaomi Watch S4.
Display Upgrades and Design Innovations
The new model mirrors its predecessor with a consistent 47mm case size and features an expansive 1.43-inch display. However, there has been a dramatic enhancement in brightness—from 600 nits to an impressive 2200 nits—making this screen not only clearer but far more vibrant.
Enhanced Bezel Swapping Feature
A standout characteristic from earlier versions was the swappable bezel feature; this time around, it’s even more refined. A helpful alert system has been added: when you detach the bezel, vibrations persist until it is returned properly to its place. This thoughtful design ensures users never misplace or forget to reattach their bezels.
The bayonet-style locking mechanism secures these bezels snugly onto the case. Pairing this innovation with standard 22mm strap compatibility offers wearers endless customization possibilities for their wearable tech as styles evolve over time.

Diverse options available for swapping out bezels and bands on your watch!
Performance Metrics: Battery Life Expectations
The battery maintains its robust capacity at 486mAh, promising up to approximately two weeks of usage on just one charge. In our experience with its predecessor under similar heavy usage conditions averaged five days; thus, we are keen to assess whether this newer model’s bright display impacts battery longevity significantly during testing.
Stay Tuned!
Your excitement awaits as we prepare for an in-depth review where all aspects of performance will be analyzed right down to runtime efficiency! Keep an eye out!