I was in search of a fitness band as I wanted to trace my everyday routine and wanted to take an idea about my work outs this band is really usefull it was adviced to me by a friend of mine and trust me it is worth buying first of all its battery life is good it lasts for around 13-14 days it gives to perfect calorie check tells you your heart beat rate anddd lets u know your sleeping duration it has bluetooth and connects to my phone easily it also has a strong and a very smart built it looks good on your wrists and it is also very afforable it is a must buy for all fitness lovers