Really read the specs for the app; It may be a great product, but the app does not work well with certain devices.

I like tracking my sleep and the water intake, the app is really cool

I am very concerned that the Fitbit itself could fall out at any time and have ordered a replacement.-The app often has connectivity issues to my phone.

The app is easy to access and use, the instructions explain the dots that are featured on the screen well

Fitbit decided to essentially kill this product by poor app engineering.

Originally, I gave it five stars (great tracker and app while it works) when I first received it, but I'm down grading to one star based on product performance and fitbit customer service.

App is easy to install on my smart phone.

My boyfriend has the same Flex product and his syncs to his Apple5 phone app instantly whereas my app usually has to be rebooted or the phone completely rebooted before it will clear the app so it will sync

Lose It app and the steps tracker online through my employer!

The app shouldn't be buggy if that's a key interface for the device to operate correctly.

I like the app that provides all the information I need and even provides challenges.

Tracks everything you want to track and has a great app that let's you compete in a healthy competition agains the Fitbit community.

The app is great and I love the silent alarms you can set

It may over-record your steps, but at least the app is better and the battery lasts longer

Otherwise awesome product, awesome app, awesome customer service

These days I use a free phone app to count my steps, and it seems pretty accurate

The app you download with it is very helpful and fits your individual needs

I love the app that goes with it

Love the app as well

it has helped me keep track, the app is awesome with workouts and the different styles of bands are great.

The app makes it easy to log food choices including a barcode scanner for eating on the go and has a lot of options saved on its database

The app is pretty well designed, and I enjoy the competition aspect of adding friends and having challenges on there

i was having fun tracking my steps as i hike often.. and the app is nice to review my steps, track my weight, and water and calorie intake

The app is great the device works great, but the battery sucks

The app is great the device works great, but the battery sucks

The app is what I love most

You can use most of the features for free with a smartphone & the free app.

The app is pretty easy to use.

Excellent app for it.

The app that you need to use with the Fitbit Flex is an awesome app

The app is great the device works great, but the battery sucks

I have become a Fitbit Maniac....working the app, etc.

I don't do any sports or work out as a

As for this product, it is a legitimate Fitbit band that works exactly as you would expect and the color of pink in the pic is the exact color you get with two different band sizes.

It works as it should-decent price