I bought a Charge a couple of years ago that disintegrated pretty quickly. The rubber casing around the face peeled away and then the strap split. Within 12 months I had gone through 4 (free replacements) but when the 4th died I couldn't really be bothered getting another one 
I had issues such as them not retaining a charge for more than a few hours, split straps, dying without the warning for low charge, etc.
I didn't do anything untoward with them, I took them off to shower etc, and worked in an office so no rough and tumble other than basic gym workouts.
Just wondering if anyone has purchased a newer model recently and had any similar experiences! I'm quite interested in getting another one (I did find it useful, and I have piled on weight in the last year) but don't want to waste the money if they're still a bit ropey!