Sorry I don't have info about rash, but I was wondering about your FORCE. How do you like it (other than the rash)? Are you getting any support from Fitbit? The reason for the questions is I was looking into one of those, but questioned what would be done with the data collected. How do you use the info that it provides?
I ended up purchasing the Aria wi-fi scale from Fitbit. It arrived yesterday and I finally got it going. The instructions are very simple and straight forward - if they would work. I took me 2 hours, 3 computers and 1 iphone to finally set it up. Fitbit has no phone support and all that was available was a support forum full of other people with the same problem.
Now that it is working I like the features. After using the scale, it connects wireless to my online account and tracks the data. I started a diet plan with myfitnesspal.com. There is an app that you can scan the bar codes of you food and it tracks your calories, carbs, fat, etc... Then you can pace your intake for the rest of the day. The fitbit scale links with the myfitnesspal account, so I can track my weight along with BMI. Obviously this is not a good time of the year to start a diet, but I should be all set after the new year.
Their website has a data base with it. I am using
http://www.syncmetrics.com/ to link between the things you do. I also have a Withings blood pressure cuff that has an iphone app. now that connects to the iphone via the standard 4s cable. There is an iHealth wireless unit that works with all phones. SInce I am on blood pressure meds, I need to keep track. my scale is also Withings so the syncmetrics all syncs with the Fitbit.
The FORCE has a clock in it which I like, as well as counts stairs. It has two tiny ports on the reverse side ( picture circled) that have an altimiter that counts 1 flight of stairs 10 feet change.
I like it as i can track my sleep, my heart rate via the Withings or Ihealth, calories in and out, set goals and so forth . The big problem other than the mystery rash is that the clasp on the band doesn't fit well with the force, you have to soak the end in hot water and fight to put it on.
Now the Flex doesn't have those problems, no stair climbing and the upcoming software update that it buzzes if your phone rings (I find worthless) but the band fits well, clasp holds well and it syncs pretty good. You have to be within 20 feet of the dongle, but the app will sync with your iphone.
Comparing, I am guessing that the Flex is better. I snagged the FORCe because of the watch function