was really tempted as my original fitbit has broke. 4 easy pay great, but almost 7 quid for delivery.... a tiny watch is a bit steep!
How long have you had your old one? The strap is breaking on mine and I contacted FitBit who offered me a replacement free or 30% discount on a purchase of a different model from them. I've had mine less than a year though. It might still be worth contacting them as they might offer you a discount.
Well I would not buy another Fitbit, it would not work on tracking on the app at least twice a week, then button fell off, yes the replaced but it was a common fault that lots were complaining of on their forums, though never addressed . Then the strap broke again another common fault.I bought a Fitbit Surge from Currys back in July and was very impressed with it. It certainly is addictive and motivates you to do some exercise and to get fitter. Unfortunately after a couple of months the strap started to blister and bubble and eventually came away from the actual watch. I took it back for a replacement, but as they didn't have the Surge in stock, I swapped it for a Garmin Vivoactive HR. I'm equally impressed with the Garmin as well.