Fitbit Flex

Anthony Caruana
13 March, 2014
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Fitbit Flex



Comfortable; wireless sync


Annoying to charge; battery life



The Fitbit Flex is a two-part device comprising a bracelet and a tracker that slips into a compartment. It comes with two bracelets to accommodate different sized wrists.

After the initial setup, we used the Flex to track activity, enter meals and other workouts such as lifting weights and running using the accompanying iOS app. Like the Jawbone UP, the Fitbit Flex hardware is only half the product – it’s the accompanying software that is just as important.

The Flex bracelet does more than just hold the Flex hardware – it also has a set of small LEDs that indicate battery level. Battery life is rated at least five days depending on how often you take advantage of wireless syncing and your activity level.

Tapping the bracelet puts it into sleep mode or shows you how far into your daily step target you are or the battery level. Different tapping patterns show different information.

Comfort is high on the agenda with the Fitbit Flex. The wristband is soft, flexible and very light. It’s barely noticeable and, unlike the Jawbone UP, there are no sharp sides or edges that can get caught on clothes.

Charging the Flex is quite annoying. You need to extract the tracker from the wristband and then place it into a device that connects to a USB port on your Mac.

Entering food into the meal diary is reasonably easy, although we did find it somewhat irksome. For example, when we tried to enter our breakfast cereal, it offered a number of options that were similar, with the item we wanted a long way down the list.

However, the list of recently used foods makes it easy to enter often-entered meals.

Bottom line.

The Fitbit Flex is a nice device that makes it easy to track activity and nutrition.

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