Xiaomi unveils the Mi Band 2, a Fitbit-like activity tracker for $23

 Xiaomi just unveiled a brand new wearable device, the Mi Band 2. Despite the name, it’s the company’s third fitness tracking device after the Mi Band and Mi Band Pulse. It track your steps, monitors your heart rate and (for the first time) features a tiny display. It costs RMB 149, or a little less than $23. According to Xiaomi,