Can you name the world’s top three wearable device vendors? According to a recent IDC report, Apple is unsurprisingly in the lead, followed by… Xiaomi and Huawei. Strictly talking about global sales of wrist worn devices, Xiaomi eclipses even Apple, and it’s all thanks to a super-affordable line of fitness trackers that are not actually and officially available in the US.

The Xiaomi Mi Band 4 can track and automatically detect various types of athletic activities, from power walking to running, cycling, and yes, even swimming. Naturally, that means the upgraded device is water-resistant up to 50 meters, similar to its predecessor, while even sporting premium glass protection against display scratches, which is yet another feature that defies the unbelievably low price point of the Mi Band 4.

Of course, Xiaomi couldn’t possibly afford to integrate GPS functionality directly into this wearable too, but believe it or not, the Mi Band 4 can monitor your heart rate and facilitate mobile payments straight from your wrist. The latter feature is optional, though, and exclusively available in China with support for the nation’s largest digital wallet solution.