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The Daily Roundup for 05.06.2013

David Fishman

You might say the day is never really done in consumer technology news. Your workday, however, hopefully draws to a close at some point. This is the Daily Roundup on Engadget, a quick peek back at the top headlines for the past 24 hours -- all handpicked by the editors here at the site. Click on through the break, and enjoy.

Fitbit Flex review

The Flex offers all the features you'd desire most in a fitness tracker while also being more attractive and more affordable than its competitors. Click the link above to read our full review.

Samsung Galaxy S 4 with Exynos Octa-core: what's different?

The Exynos-powered GS4 is just as excellent as the Snapdragon 600 variant, with slightly better performance. However, the lack of LTE will be a dealbreaker for some. Read on to find out our complete impressions.

Inside the third-annual White House Science Fair

The White House West Wing, as ever, is very busy. It's nearly time for White House Press Secretary Jay Carney's daily press briefing. Just upstairs, the atmosphere is thankfully less intense. In the East Room and surrounding chambers, over 100 students -- STEM-based competition winners from 40 different states -- are making their best efforts to remain chipper while explaining projects they've no doubt discussed dozens (if not hundreds) of times before.

The Liberator, the first completely 3D-printed gun, gets test-fired (video)

The (almost) all-plastic 3D-printed Liberator pistol was announced by Defense Distributed late last week, but with the gun's blueprints and construction details now live on the company's own DefCAD design site, it's also released a video taken during its testing.

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