Having previously purchased an activity tracker from another manufacturer, which I was unable to use as it needed to interact with a specific app, which proved to be incompatible with either my tablet or mobile phone, I chose the Fitbit Flex.
The reason for my choice was that it includes a dongle, which enables it to interact with my PC and uploads data whenever I am close by. In addition, my existing tablet and mobile phone, although unable to directly access the data from the Fitbit Flex, are able to access what has been uploaded via the PC dongle from the Fitbit app, which is accessible to them via the Internet.
The Fitbit Flex has for the most part turned the process of attempting to achieve weight loss, (which was my main reason for having purchased it) into a logical mathematical process, in which calories burned and calories eaten are compared and analysed via the essential Fitbit app. The latter also serves to applaud progress by acknowledging achievement as predetermined goals are reached.
The only negative comment I would make is that I do complete an intensive daily workout on a high quality (and expensive) elliptical trainer, which facilitates a really strenuous exercise regime and reflects its own findings on a comprehensive screen. When I enter these manually into the Fitbit Flex app (having removed the Fitbit Flex during this activity), I do not believe that the results on the app provide an accurate interpretation of the facts. (My main reason for having said this is that there have been many occasions when I ought not to have lost weight, but have found that I have, due to the mismatch between my own activity level and the Fitbit app’s interpretation of the same.)
Consequently I would still regard the Fitbit Flex as a five-star piece of equipment, as it does most things well and is a prime source of motivation for those such as myself.
However I would suggest that ardent athletes and others wishing to monitor activity more precisely would opt for a Fitbit device that monitors heart rate more specifically, in order to fine tune their results appropriately.
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