I have a Fitbit Flex - in fact if anyone wants it, drop me a PM with your address and I'll more than happily send it to you. Unfortunately I didn't find Fitbit terribly useful for me for the following reasons: [*]I do a lot of swimming; Fitbits aren't waterproof so you have to enter the time manually...which I'd generally forget to do [*]They can't track strength training; again, you enter it manually [*]Cycling? Again, they can't track it. Manual job [*]Treadmill. I found the results extremely dodgy. More accurate was a Polar watch with chest strap heart-rate monitor that automatically syncs to most gym machines and measures your calorie output based on your heart-rate. In short, I found the Fitbit to be just a glorified pedometer with a food log attached and in all honesty if that's the case, you can just load up the Endomondo app (or others of its ilk) that'll track your walking distance by GPS and sync it up to something like MyFitnessPal. The new Jawbone Up3 looks more promising as it has skin sensors so can track exercise that's not centred on taking actual steps. I believe it's waterproof too.
