The new Fitbit flex is smaller than its predecessors and slides inside a wrist band. No more forgetting to clip your Fitbit to your belt or put it in your pocket and virtually no chance of loosing it during the day. Wrist bands come in multiple colors and sizes plus are adjustable so users can make sure they get the color they like with a comfortable fit.
The new Fitbit flex is water resistant and according to the company is ok it take it in the shower. I still take it off when I swim laps in the pool just in case it isn't truly that waterproof yet.
The Flex seems to suffer from a shorter battery life than its older cousins that are still for sale. Flex also now has a different charging cradle than previous models so if a user finds they have a dead battery on a trip they are out of luck unless users bring along the special charger.
Flex has dropped showing how many floors the user has climbed in the course of the day. That is a huge disappointment, I used to skip elevators so I could take the stairs to get my floor climbing count higher for the day. Once climbing 14 flights of stairs twice to get a 25 floors in a day badge.
All of these devices the Fitbit, Up, Nike Fuel, and others use a ramification element to keep the wearer engaged and make the device fun to wear and use. Also with historical tracking and a social aspect users can track what they did and compete against friends. Fitbit has also found the key to keeping people engaged also lies in integrating with other applications. Tying Fitbit into scale applications, blood pressure apps, diet applications so entering data in one place pulls everything together. Users can in the Fitbit dashboard see how many calories they consumed and how many they should burn. Allowing users to make better food and exercise choices. For me when I pay attention to these apps and log the food I eat I tend to loose weight and be healthier myself.
While wearing the Flex I have noticed I record more footsteps when wearing it on my non-dominate hand like the company recommends. While walking with a Fitbit One and a Flex the Flex did read fewer footsteps over the course of a day.
I haven't been using it much lately since I lost the charger and have to order a replacement since every Fitbit I have ever had has a different charger. I still like the device and I like the social aspect. It encourages me to walk more.
Fitbit Flex Wireless Activity + Sleep Wristband, Black