Negative Positive
Title: Cheap, for a reason.
Review: This is a very cheap and poorly designed piece of plastic. The battery cover comes off only after you jam your fingers trying to work on it. You will work on it often if you want your battery to last over a week, or so. Otherwise, you'll put up with this company's statement, hidden in the instructions, that this unit is "designed to always be on." Yeah, nice electronics, right? The aforementioned battery cover will also break, in time, as its little prongs will snap off, and then you'll have to tape the cover on. Without tape, the battery will spring out and get lost. Spend a few more dollars and get a better unit. As far as the actual distance calculator, step sensor and mechanics, this unit does what it needs to do. The trouble is in the plastic that surrounds those parts. Pass on this one.
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