My old analysis kept for archive.
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In summary / my advice above, keep the clip of your old wristband if it were to break. Let me explain:
After less than a year, I had the unpleasant surprise to see my original strap breaking. You should know that the bracelet is made up of several pieces simply glued. No wonder that with such poor design the product breaks.
I recommended these alternative media, supplied by the manufacturer (we foolishly imagine that this is a guarantee of quality).
Well ... they managed to do worse than the original model!
Indeed, the fastening system permits to bond the two sides of the strap to each other is made of a simple transparent plastic, rigid and brittle. In two days it was broken into 2 parts. Fortunately, always usable condition file the broken edges that had become sharp but frankly much less convenient to open / close.
BUT ... I had the idea of recovering the attachment of my original bracelet, fortunately, fits on these new bracelets.
In the end, so I have something functional for it even if I had to return the trash where I threw the broken strap :(
The good side is aesthetic. Indeed, the bracelet is a beautiful color, although united and the transparent part that reveals the progression of LEDs is, too, tinted for a beautiful effect. Sympa. This explains why I concede still 2 stars.
By cons, it does not catch the two big drawbacks: fragility and shameful prices charged for these 3 pieces of plastic.
Too bad we lack of alternatives replacement :(