10 must-see videos of the week

Mobile World Congress highlights, how to text abroad for free, and should Apple be worried about the Galaxy S5?

It should be no surprise that this week's video roundup is all about Mobile World Congress. All eyes were on Samsung this year as they announced an assortment of new goodies, including the Gear 2, new Gear Fit as well as the highly-anticipated Galaxy S5. Senior Editor Jessica Dolcourt runs down the key specs and features of the new superphone from Samsung in our First Take. With its fingerprint scanner, heart rate sensor, and a whole roster of muscular specs loaded with features Apple Byte wonders, should Apple be worried? Would the rumored iPhone 6 be able to top it? And to get the full lowdown on the best of the event on video, make sure you watch our 12-must see videos of Mobile World Congress.

While Mobile World Congress might have been the been the main attraction this week, we still have other great video content to share, including a behind-the-scenes look at Dolby Labs and their incredible new Atmos sound system which was used in Oscar-nominated films "Gravity" and "The Hobbit: Desolation of Smaug."

Plus: How to text for free abroad, why we dig the 2014 Lexus GS 450h and quite possibly the first product review ever that required us to consume whiskey.

1. The Samsung Galaxy S5 unveiled
Samsung's new flagship phone adds intriguing tools to top-tier specs, but no stunning new design. Also watch: Galaxy S5 fingerprint scanner and heart rate monitor explained and Galaxy S5 new software and camera features

2. Googlicious: Did Samsung do enough at MWC 2014?
Samsung announces all of it's latest goodies at Mobile World Congress including the Galaxy S5, the new Gear 2 smartwatches, and the Gear Fit fitness band.

3. A waterproof phone coating you won't believe
This up-and-coming waterproof tech makes your mobile dunk-proof, without sacrificing design.

4. Apple Byte: Should Apple be worried about the Galaxy S5?
Samsung reveals their newest Galaxy S5, so can the rumored iPhone 6 top it? Apple's "gotofail" security bug gets patched, and our JBL Pulse winners!

5. Breathometer breathalyzer a fun party game, but not the most accurate
An accessory for iPhones, the Breathometer is very portable and can be fun to pass around at parties, but its results should not be taken as permission to drive.

6. Samsung Gear Fit gets its curve on
Samsung's new fitness tracking workout buddy conforms to your wrist while minding your health.

7. Dolby Atmos sound tech puts you in Smaug's lair
Dolby Atmos is used in the Oscar-nominated films "Gravity" and "The Hobbit: Desolation of Smaug." CNET's Kara Tsuboi goes behind the scenes at Dolby Labs with Academy Award-winning sound mixer Christopher Boyes.

8. Adventures in Tech: How Samsung built its Galactic Empire
As the S5 becomes official, Adventures in Tech explains how Samsung Galaxy brand became a global tech superpower.

9. Text while abroad with these apps
Last week, Facebook purchased WhatsApp for $19 billion. Not familiar with the mobile-messaging app? CNET's Kara Tsuboi brings you up to date on WhatsApp, which boasts 450 million users around the world, and other apps for free texting in this Tech Minute.

10. We could drive this Lexus all day and night
The 2014 Lexus GS 450h features many techie goodies, but how does it stack up against its luxury competition? CNET's Wayne Cunningham takes one for a test drive.

Featured Video