It's the match we've all been waiting for. After weeks of testing comparisons we have the two best phones in the world going head to head in the final of the 2014 Mobile World Cup.
The Sony got off to a good start with its premium style. The glass and aluminium design give it a look and feel of quality. But it felt a little chunky compared to the slimmer, lighter S5.
With the screens on, the match hit a stalemate. The Korean phone's Super AMOLED screen is incredible. It's brilliantly bright, shows fantastic colours and pin-sharp detail. But the Japanese LCD screen put up a good fight thanks to all the TV tech that helps power it.
Neither phone could really take control of the match with pace either. The Galaxy S5 and Xperia Z2 both have extremely fast Snapdragon 801 processors that make them load and run everything quickly and smoothly.
It was the same story with the cameras too. The Samsung and Sony take the best photos of any smartphone. They're crisp and colourful and have loads of fun features to make your pictures look even better.
But the Samsung did manage to take an advantage over the Sony. Its fingerprint scanner made for a solid defence that the Japanese phone couldn't compete with. It lets you lock you phone more securely and even make PayPal payments more safely, just by swiping your finger.
The Sony hit back quickly with its fantastic sound quality. The phone comes with digital noise cancelling headphones that let you really enjoy what you're listening to by cleverly drowning out annoying background noise.
At the end of the match, neither phone was struggling for stamina. Both have big batteries and with Sony's Stamina Mode and Samsung's Ultra Power Saving Mode, you can make that power last even longer.
So at the end of the match we thought it was too close to call. So, as a sort of penalty shootout, we're letting you choose the winner. Just tweet @CPWTweets with either the hashtag #XperiaZ2 or #GalaxyS5 to vote for the winner of the 2014 Mobile World Cup.
You can learn more about the next great phones, even before they're announced, on our Launchpad Rumour pages. Or, head over to our YouTube channel to keep up with what's happening in the mobile world. We'll be at the best technology shows, get you all the news about the latest phones, and post video reviews of our favourite gadgets.