Fitbit Flex vs Adidas Fit Smart

The fitness tracker itself is a separate part from the wristband that can be taken out and put in a different band. There is 10 wristband colors to choose from in the official store, and custom bands available from third-party vendors.

The fitness tracker offers stats such as distance traveled, steps taken, calories burned, weight changes, calories consumed from foods and drinks, restless and awake states of sleep, etc.

The fitness tracker can be integrated with a variety of apps that together can offer more in-depth and complete overview of your health and fitness patterns.

There are 5 LED lights that, after double-tapping the wristband, display progress towards a goal. Each light indicates 20% progress towards the goal and the tracker allows choosing between steps, calories or distance to display this way.

Fitbit Flex lets users create a meal plan and log their progress from the dashboard menu.

Fitbit Flex will last up to a week on a single charge.

Flex constantly shares data over Bluetooth, meaning that the device doesn't need to be taken off in order for the data to sync to an iOS or Android device.

Information regarding goals and progress can be shared with friends, and users can even challenge each other with goals.

Because of Fitbit's database of foods' nutritional information, food and drink logging is easy.

The lightweight rubber band is very comfortable to wear.

Wearing it continuously, you can expect around 5 days of use. If you only wear it during workouts, it will last closer to a full week. The charger is proprietary, and you simply place the Fit Smart fitness tracker on it and line up the pins.

You can set weekly goals and training plans through the fitness tracker's app. One downfall is that if you have a training plan set in the app, you can't also have weekly goals. Once you have a plan selected, it will sync with your phone so you don't forget when you wanted to workout.

You can also access previous workouts and achievements from the app, along with estimated times for 5k, 10k, half, and full marathon races based on your past running performances.

There are 3 buttons on-board. The first toggles between battery status, time, and the different training modes. The other two take you through MiCoach and free training modes. These buttons are easy to find, even with gloves on.

During workouts, the LED lights on the side change color to show how intense your workout is. White (74bpm) is none-light activity, Blue is warm up/cool down, green is calorie burn and boost endurance, yellow is intense training and muscle burn, red (182bpm) is short power bursts to develop strength and speed.

If you have a MiCouch workout selected, on-screen you will see an up or down arrow indicating whether you should pick up the pace or slack it off.