If we are talking about a fitness tracker that fits your budget, this is the one. The Mi Band 2 comes in a sleek design and battery life that will almost last you a month. There is also a heart rate monitor to help you out with your HIIT (High-Intensity Interval Training). This tracker also comes equipped with its own app for you to get more detailed data. The display is an OLED display that is bright and makes it easily readable. One downside to the Mi Band 2 is that there is no GPS feature. However, a great option to start off with.