I was very disappointed with this item. At first I had great difficulty fixing the watch into the machine (two plastic tongues have to fit between two other bits of plastic) and the watch kept falling out of the machine when I switched it on. Once I solved that problem the various pprogrammes didn't work properly. It was supposed to rotate, then reverse but it wouldn't reverse and just stopped.
So far all my comments have to be negative. I have a Garmin nuvi1340. I signed in on-line and activated the card but while the device product number is identified I keep getting an HTTP500 Error message and no suggestion what to do to correct it. I contacted Garmin by email on 20th April but to date have not had a reply, other than an acknowledgement. Luckily I have no plans that will need the use of the sat/nav in the next few weeks!