iDAT: This app helps users count calories each day and keep track. The “Interactive Diet and Activity Tracker” helps you keep track of what you consume each day accurately.

MyFitnessPal: This is a free app with many features. It can help count calories, plan your diet for the day, and keep track of your intake each day or week. Nutritional information is available for many foods, and there is a massive database that includes almost any food you can think of. 

There are no excuses for not documenting every bite when you use MyFitnessPal.

RunKeeper: This app is free, and allows you to use your smart phone as a GPS device that can track your runs and other activities. You can easily review your statistics for each workout, and keep track of the data for comparison. 

RunKeeper can also tell you how many calories you burn during a run or workout, to help you keep track of your progress. RunKeeper also allows you to connect with friends on social media networks, so that you can work together to achieve your goals, even if you can’t actually meet for a run.

LoseIt: This app helps you to develop an ideal daily calorie plan, and will monitor your food intake and your exercise. It can help you become more accountable and make healthier choices by showing you just what you eat and how many calories you are consuming. 

Social media networking is also possible, so that you can share your accomplishments.

Jawbone Up24: This little gadget has become quite hip, and frequently been seen sported by celebs all around. The Jawbone has been around for a while now, and only growing in popularity. Made from medical grade hypoallergenic rubber, it is safe to wear 24 hours a day. 

The thin design makes it comfortable, and you will soon forget you are keeping track of every activity. Keep track of your exercise, sleep and movement, and compare the data to other apps you may use, like RunKeeper and MyFitnessPal.

Withings Pulse O2: This tiny gadget gathers plenty of data on your behalf. It’s about the size of a tiny SD card, and contains tons of data regarding your calories burned, steps taken and more. Track your elevation—fun for those who are avid climbers of stairs and mountains! 

An added heart rate sensor helps you know when you are in the zone, and it will measure your oxygen levels, too.

Samsung Gear Fit: Looking for a gadget that really does it all? The Samsung Gear Fit can track and log your movements, keep track of your calories, and measure your heart rate. It can also be used as an accelerometer or gyroscope. It’s waterproof, so you can use it anywhere.

Nike+ FuelBand SE: As the newer version of the very popular FuelBand, the SE version offers some great new features, including an LED light and more comfortable design. You can easily see your time, calories burned, number of steps, and more. 

If you don’t move at least five minutes each hour, you will be reminded to do so.

Garmin Forerunner 15: This GPS watch, intended to track outdoor runs, works great and has many features. You can not only track your pace, distance and more, but this gadget offers users a virtual partner to run with so you can see how close you are staying to a target pace.

Apple Watch: A smaller version of its iPod and iPhone counterparts, this gadget is designed to be worn on your wrist. It can play music, serve as a heart rate monitor, track your fitness and even provide you with the ability to make mobile payments on purchases. 

With a built in accelerometer and intensity sensor, and the ability to sync to an iPhone through WiFi, you have a great capability to trace your movements and keep track of your efforts.