1. The new<a href="index.php?page=&url=http%3A%2F%2Fmoney.cnn.com%2F2014%2F02%2F24%2Ftechnology%2Fmobile%2Fnokia-x-android%2F"> Android-powered</a> <strong>Nokia X</strong> range.
The best of Mobile World Congress 2014 —
1. The new Android-powered Nokia X range.
Jim Spellman/CNN
2. The <strong>Samsung Galaxy S5</strong>, with heart rate monitor and some<a href="index.php?page=&url=http%3A%2F%2Fmoney.cnn.com%2F2014%2F02%2F24%2Ftechnology%2Fmobile%2Fsamsung-galaxy-5-hands-on%2F"> new, high-spec features</a>.
The best of Mobile World Congress 2014 —
2. The Samsung Galaxy S5, with heart rate monitor and some new, high-spec features.
courtesy samsung
3. The waterproof <strong>Sony Xperia Z2 --</strong> launched with <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2014%2F02%2F24%2Ftech%2Finnovation%2Fsony-tie-up-with-michael-jackson%2F">some help from Michael Jackson</a>.
The best of Mobile World Congress 2014 —
3. The waterproof Sony Xperia Z2 -- launched with some help from Michael Jackson.
CNN
4. The seven inch <strong>Huawei MediaPad X1</strong> tablet with <a href="index.php?page=&url=http%3A%2F%2Fwww.wired.co.uk%2Fnews%2Farchive%2F2014-02%2F23%2Fhuawei-mediapad-x1-and-m1-preview" target="_blank" target="_blank">edge-to-edge screen</a>.
The best of Mobile World Congress 2014 —
4. The seven inch Huawei MediaPad X1 tablet with edge-to-edge screen.
LLUIS GENE/AFP/Getty Images
5. The bluetooth <strong>Tethercell</strong> battery, which allows users to shut off a device with <a href="index.php?page=&url=http%3A%2F%2Fwww.tetherboard.com%2F" target="_blank" target="_blank">a tap on your phone</a>.
The best of Mobile World Congress 2014 —
5. The bluetooth Tethercell battery, which allows users to shut off a device with a tap on your phone.
Courtsy Tethercell
6. The biggest speech: Facebook CEO <strong>Mark Zuckerberg</strong> talks about the <a href="index.php?page=&url=http%3A%2F%2Fmoney.cnn.com%2Fvideo%2Ftechnology%2F2014%2F02%2F24%2Ft-zuckerberg-on-whatsapp-acquisition.cnnmoney%2F">$19bn takeover of WhatsApp</a>.
The best of Mobile World Congress 2014 —
6. The biggest speech: Facebook CEO Mark Zuckerberg talks about the $19bn takeover of WhatsApp.
Josep Lago/AFP/Getty Images
7. As for WhatsApp, co-founder Jan Koum announced<a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2014%2F02%2F24%2Ftech%2Fmobile%2Fwhatsapp-voice%2F"> the arrival of voice calls on the service</a>.
The best of Mobile World Congress 2014 —
7. As for WhatsApp, co-founder Jan Koum announced the arrival of voice calls on the service.
David Ramos/Getty Images
8. In other tech: Russia's <strong>YotaPhone</strong> showed off an Android handset with an <a href="index.php?page=&url=http%3A%2F%2Ftechland.time.com%2F2013%2F01%2F09%2Fhands-on-with-russias-yotaphone-finally-something-different%2F" target="_blank" target="_blank">interactive e-ink display</a> on its back.
The best of Mobile World Congress 2014 —
8. In other tech: Russia's YotaPhone showed off an Android handset with an interactive e-ink display on its back.
Courtesy Yota Devices
9. Struggling Blackberry also pushed out<a href="index.php?page=&url=http%3A%2F%2Fpress.blackberry.com%2Fpress%2F2014%2Fblackberry-forges-ahead-with-introduction-of-new-products-and-se.html%3FCPID%3DSOC_C_US_TW1393315501" target="_blank" target="_blank"> two new phones</a>: the <strong>Z3</strong> and <strong>Q20</strong>.
The best of Mobile World Congress 2014 —
9. Struggling Blackberry also pushed out two new phones: the Z3 and Q20.
courtesy blackberry
10. In addition to the Galaxy S5, Samsung announced the <strong>Gear2 </strong>watch, which <a href="index.php?page=&url=http%3A%2F%2Fmoney.cnn.com%2F2014%2F02%2F23%2Ftechnology%2Fmobile%2Fsamsung-gear-2-smartwatch%2F">ditches the Android OS</a>.
The best of Mobile World Congress 2014 —
10. In addition to the Galaxy S5, Samsung announced the Gear2 watch, which ditches the Android OS.
David Ramos/Getty Images