Xiaomi Unveils Mi Band 2 Second-Generation Fitness Band

Mi Band 2, Xiaomi's second-generation fitness band, gets improvements, including a new OLED display,

easier access to heart rate data and tracking for running.

Xiaomi announced its Mi Band 2 second-generation fitness band, which features a new OLED display, improved battery life, a new strap design and other upgrades. The first model of the Mi Band from the Chinese smartphone and device maker debuted two years ago.

The new Mi Band 2 gets a new 0.42-inch OLED display, replacing a system of three indicator lights used on the original Mi Band, and a 70mAh lithium polymer battery, replacing the 41mAh version used in the previous band. The new, more powerful battery offers up to 20 days of use on a charge, according to Xiaomi. The previous model offered up to 30 days of use on a charge, but had fewer features.

Also built into the Mi Band 2 is an improved pedometer algorithm to provide users with more accurate step counting. The latest device is 9.25 inches long and weighs 0.24 ounces, and features 6.1 inches to 8.26 inches of band adjustability to fit a variety of wrist sizes. The band is made of thermoplastic elastomers and aluminum. The new wrist strap design includes a softer, more comfortable material to wear for long periods of time.

The Mi Band 2 is priced at $23, compared with $14.99 for the original Mi Band. The new device goes on sale in China starting June 7.