hello, I don't have a direct comparison to another product, but I am sure that the records are not too accurate. Meaning, it shows me: Fall asleep at 23h, but I was still watching TV at that time, I just barely moved and was relaxed. I think it's more of an additional feature that (for the price) certainly can't work accurately. But it shows you the sleeping habits. More or less accurately. But otherwise, the Smart Band is tiptop for the price. The battery lasts just under 3 weeks for me.