Xiaomi Mi Band 2 is a display-equipped fitness tracker for $23

Xiaomi, China's electronics manufacturer known for solid products with extremely low price tags, has launched a successor to its popular Mi Band fitness tracker: the Mi Band 2.  The device is a pretty big departure from the original Mi Band. Unlike that model, the Mi Band 2 has an OLED display, but the price has also risen significantly: from $15 to $23. SEE ALSO: Can Xiaomi dominate the drone market? The Xiaomi Mi Band 2 is a fitness, heart rate and sleep tracker. It sports an ADI acceleromete...