I had been using this band from past couple of months. Its really very good. Records activities with very good accuracy. Although some times I feeling there is some mistakes in recording. Life log companion app is also very good . UI is very good. One can easily see his activities and set goals to achieve. Encorages to achieve goals every day. Also records social media browsing and other activities performed. Battery backup is also very good. Easily last 3-4 days. Have really some very cool features like vibrates when phones is left behind. Although if the intesnsity of vibration control would have been there it had been better. Overall a very good band. But also the price is on higher side at around 6000. It should have been half of it to promote the usage of such new technology.