Smartwatches reign at Mobile World Congress 2015
A visitor checks his phone during the second day of the Mobile World Congress 2015 at the Fira Gran Via complex in Barcelona, March 3, 2015.
Ninety thousand executives, marketers and reporters have gathered in Barcelona this week for the telecom operators Mobile World Congress, the largest annual trade show for the global wireless industry.
Samsung Gear VR
A man tries out a Samsung Gear VR during the second day of the Mobile World Congress 2015 at the Fira Gran Via complex in Barcelona, March 3, 2015.
Huawei Watch
Two models show off the new "Huawei Watch" during a press conference in Barcelona on the eve of the 2015 Mobile World Congress opening, March 1, 2015, where phone makers try to seduce new buyers with even smarter Internet-connected watches and other wireless gadgets.
Samsung Galaxy S6
Visitors and journalists take pictures of the new Samsung Galaxy S6 during the Mobile World Congress 2015 in Barcelona, March 1, 2015.
Talkband B2
A model presents Huawei's new "Talkband B2" during a press conference in Barcelona on the eve of the 2015 Mobile World Congress opening, March 1, 2015.
Mobile World Congress 2015
A man looks at his smartphone next to a wall decorated with photos of the new Samsung Galaxy S6 Edge during the Mobile World Congress Wireless show, the world's largest mobile phone trade show, in Barcelona, Spain, Tuesday, March 3, 2015.
Amigo
A hostess presents "Amigo," a new watch by B-om company at the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
SK Telecom virtual reality glasses
A visitor uses virtual reality goggles from South Korean carrier SK Telecom during the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
SK Telecom robot
A man operates an SK Telecom robot during the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
Ara
The mobile device "Ara" by Yezz is displayed during the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
Samsung Galaxy S6
Visitors and journalists take pictures of the new Samsung Galaxy S6 during the Mobile World Congress 2015 in Barcelona, Spain, March 1, 2015.
Ara
The mobile device "Ara" by Yezz is displayed with other gadgets during the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
Samsung Gear VR
Women try out Samsung Gear VR devices during a showcase at the Mobile World Congress in Barcelona, March 2, 2015.
Ninety thousand executives, marketers and reporters have gathered in Barcelona this week for the telecom operators Mobile World Congress, the largest annual trade show for the global wireless industry.
Sony SmartWatch 3
A Sony SmartWatch 3 sits on display during the second day of the Mobile World Congress 2015 at the Fira Gran Via complex in Barcelona, Spain, March 3, 2015.
The annual Mobile World Congress hosts some of the wold's largest communication companies, with many unveiling their latest phones and wearables gadgets.
FiLIP watch
The annual Mobile World Congress hosts some of the wold's largest communication companies, with many unveiling their latest phones and wearables gadgets.
Photo: A hostess presents the "FiLIP" watch by Telefonica during the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
Mobile World Congress
Visitors look at new mobile devices during the 2015 Mobile World Congress (MWC) in Barcelona, March 3, 2015.
QuidredCam
A prototype of Acumulus9's wearable camera, QuidredCam (L), is shown during the Mobile World Congress in Barcelona, March 1, 2015.
Sony SmartWatch 3
A hostess displays the Sony SmartWatch 3 during the Mobile World Congress in Barcelona, March 2, 2015.
Blackberry Leap
A hostess shows off the new Blackberry Leap smarphone during the Mobile World Congress in Barcelona, March 3, 2015.
BlackBerry unveiled a new mid-market smartphone on Tuesday dubbed the BlackBerry Leap that is set to replace the Z3 device launched a year ago, in a move to woo buyers in certain emerging markets where BlackBerry still has a fairly large client base.
Blackberry Passport
A man holds the new Blackberry Passport smartphone during the Mobile World Congress in Barcelona, March 3, 2015.
Samsung CEO JK Shin
CEO and President of Samsung JK Shin presents the new Samsung Galaxy S6 during the 2015 Mobile World Congress in Barcelona, March 1, 2015.
Huawei Watch
The Huawei Watch is displayed during the Mobile World Congress in Barcelona, March 3, 2015.
Chinese telecom equipment maker Huawei launched its first smart watch on Sunday, a round-faced device that works with Android phones, joining a crowded market weeks before the introduction of the highly anticipated Apple Watch.
Lumia 640 and 640 XL
The Microsoft Lumia 640 and 640 XL are displayed during the Mobile World Congress in Barcelona, March 3, 2015.
Lenovo A7000
The Lenovo A7000 is displayed during the Mobile World Congress in Barcelona, March 3, 2015.
Sandisk ultra microSDXC memory card
The new Sandisk ultra microSDXC memory card is seen through a magnifying glass during the Mobile World Congress in Barcelona, March 3, 2015.
SanDisk introduced what they say is the world's highest capacity ultra microSDXC memory card with a 200GB capacity at the mobile industry's largest annual gathering.
Sony SmartBand Talk
A Sony SmartBand Talk sits on display during the second day of the Mobile World Congress 2015 at the Fira Gran Via complex in Barcelona, March 3, 2015.
Lenovo A7000, Vibe Xtension flash
A Lenovo A7000 smartphone with a Vibe Xtension flash is held by a worker at the Mobile World Congress, the world's largest mobile phone trade show in Barcelona, March 3, 2015.