Fitness trackers like the Nike Fuel Band and the Fitbit are already hugely popular.
Startup Fitbit makes a thumb-size, accelerometer- equipped device that tracks users' steps, sleep and calories burned.
Fitbit's app is now available in the Google Play marketplace and for all international markets.
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Some of its prominent companies include Rovio, Inkling, Dropcam, Wildfire Interactive, Weebly, Fitbit, Bonobos and Mindsnacks.
Both LarkLife (iPhone only) and Fitbit ONE (iPhone, Mac, PC, Android soon) connect wirelessly.
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Beeminder is cool because it works with FitBit, RescueTime, Gmail, RunKeeper, among other useful apps.
Maybe, but the Fitbit Flex may solve for these kind of data in a more unobtrusive way.
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For example, we have connected thermostats such as Nest, fitness devices such as Fitbit, and connected washing machines.
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Simply tap your Flex band on your Android phone and it will automatically launch the Fitbit Android app.
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The framework of the app side of the Fitbit Flex also seems very adaptable to customized user goals.
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The San Francisco-based company makes the Fitbit Ultra, which monitors exercise and activity as well as sleep patterns.
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Up, Fuel, Shine, Fitbit, to name a few, are all very visual products.
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Samsung is also adding all sorts of fitness tracking options, placing it in competition with Fitbit, Nike Fuel and others.
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We also got to check out the companion wireless scale that looks quite a bit like the Fitbit Aria.
He wears a Fitbit for step counting and tracks his day in 15-minute increments using the calendar on his iPhone.
Fitbit's experience, and that of many companies that have been sued for similar policies, shows the pitfalls of that strategy.
FitBit also has a leaderboard but doesn't currently allow messaging through the mobile apps, though you can tweet out your progress.
The Fitbit app for Android is available for the Samsung Galaxy SIII and Samsung Note II, with more devices to come.
ENGADGET: Fitbit updates Android app with wireless syncing over Bluetooth 4.0
Read: Fitbit Flex: Will collecting data on your body make you healthier?
Companies like Withings, which offer an API that syncs with FitBit, just announced a competitive device called the Smart Activity Tracker.
Fitbit's been in the fitness-tracking game for a while now, but today marks its first official entry into the wearable band space.
The FitBit clips to clothing, and the UP is a rubber wristband.
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If discretion is a concern, the Fitbit One should be your go-to.
Fitbit products are carried in over 10, 000 U.S. retail stores, and sold internationally in Canada, Spain, UK, France, Germany, Australia and New Zealand.
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Among them are Fitbit, a pedometer that tracks daily sleep and activity and uses social networking and gaming to motivate its users.
The past year alone has seen the launch of Nike's FuelBand, the ill-fated Jawbone Up and a refreshed line of Fitbit trackers.
Perhaps the feature we were most excited about was Up's ability to track sleep patterns, something Fitbit has done for a couple of years now.
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The Fitbit ONE includes an altimeter, the Fitbit FLEX will not.
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"They tend to send more cheers than they do taunts, so it does tilt towards positive encouragement, " said Nichiketa Choudary a senior product manager at FitBit.
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