Xiaomi MiBand

Chinese gadget maker Xiaomi is getting into the fitness arena with a super affordable health tracker.

The MiBand will cost just $13, Xiaomi said today, though it appears that the device is only scheduled for release in China at the moment. Those who do get their hands on it, though, will be able to monitor fitness and sleep. Xiaomi promised 30 days of standby power and said that the MiBand is water resistant and will include several band options, including leather.

Xiaomi Mi4 SmartphoneOwners can use their MiBand to unlock a Mi phone without a password. That includes the new Mi4, a follow-up to last year's Mi3 smartphone.

The Mi4 sports a 5-inch 1080p IPS display, and runs a Qualcomm Snapdragon 801 chip and 3GB of RAM.

There's a 13-megapixel rear camera that supports 4K video recording and an 8-megapixel front-facing shooter. The 3080 mAh battery should keep the device charged up for quite some time. The Mi4 also allows for swappable back plates.

The phone will be $320 for the 16GB and $400 for 64GB, also in China.

Xiaomi made headlines last year when Hugo Barra, previously vice president of product management for Android, left Google to join Xiaomi. He is now vice president of Xiaomi Global and tasked with expanding Xiaomi's product portfolio and business globally.

We got some hands-on time with the Mi3 in September, when it was just a prototype, but PCMag's Sascha Segan commented that at $330, it could give Apple a real run for its money in China, where the iPhone is $728.

More recently, Xiaomi made its first entry into the tablet market. The Mi Pad is a 7.9-inch slate available in six colors, which looks suspiciously like an iPad, if it were built out of iPhone 5c materials.