Mobile World Congress is the biggest mobile event of the year, seeing the launch of many of the year's top smartphones, smartwatches and tablets, as well as seeing the emergence of the hottest new trends in mobile, such as 5G.
Generally speaking, all the big brands attend Mobile World Congress (MWC) in one way or another. The exception is Apple, although the trends outlined at MWC very much include the iPhone.
Here's what to expect from Mobile World Congress 2019 and all the launches it will bring.
What is Mobile World Congress?
Mobile World Congress is an annual trade show run by the GSMA. The location theoretically moves around Europe, but for many years it has been held in Barcelona, Spain.
It is the launch platform for many of the year's big smartphones, but it has also given us a range of tablets, smartwatches and other connected devices in recent years.
Outside of the consumer sphere, it also draws in many of the industry heavyweights to talk about the future of mobile, like 5G, mobile hardware, VR and other associated technologies.
When is Mobile World Congress 2019?
Mobile World Congress is scheduled to run from 25-28 February 2019. Those are days that the show is open, the keynotes are running and the exhibition halls are open.
However, the big announcements are likely to be on Sunday 24 February. This is often the day that a number of press conferences are held, just before the show actually opens.
What will launch at Mobile World Congress 2019?
BlackBerry at MWC 2019
BlackBerry often uses MWC to make some sort of announcement. At the moment there's very little being said about BlackBerry's future plans, so we can't be certain what might be announced at MWC - if anything.
Honor at MWC 2019
Honor often has its place at MWC, sharing some of the spotlight with parent company Huawei. Honor officially unveiled the Honor View 20 in Paris in January, and we've yet to hear any more plans from Honor about Mobile World Congress.
A Huawei folding phone?
Huawei is teasing the launch of a new folding phone. It might just be a concept for now, but Huawei's Twitter teaser suggests it is coming and Mobile World Congress is likely to be the venue.
We know that the Huawei P30 is also due, but the company let slip that this flagship would be launched in Paris in March.
LG G8 and LG V50
Rumours suggest that LG now wants to be back in the mix and will announce the flagship G8 at MWC. A recent leak saw the design of this forthcoming handset unveiled, and LG has invited media to an event on 24 February, as well as teasing features. But LG is also rumoured to be launching the LG V50, a 5G handset. Will it launch both G and V at the same time? It's looking like a big launch for the company.
Microsoft at Mobile World Congress
Microsoft has confirmed that it will be a MWC this year and that it's holding an event. Exactly what the company plans to talk about, we don't know. Some are suggesting that it will be HoloLens 2, but with 5G coming, plenty of businesses interested in staying connected and Windows on Snapdragon devices still trying to find space, there's plenty for Microsoft to get involved with.
Motorola - a new RAZR?
Motorola has officially launched the G7 family but there's also talk of a new Moto RAZR, priced at $1500 on Verizon. Details are light on this retro rumour, but as Nokia has found, launching retro phones gets you a lot of headlines. There's no press conference for Motorola booked in, so it's not looking likely at the moment.
Nokia 9 at MWC 2019
Nokia has announced a large number of phones as it attempts to fight its way back into the limelight. From retro re-releases to a full range of affordable Android One devices, Nokia has been pretty exciting over the past 24 months. There's little clue as to what we might see at MWC - apart from maybe the elusive Nokia 9. It has been confirmed that Nokia will hold an event on 24 February.
Oppo and its 10x zoom camera
There's a lot happening with Oppo at the moment - it launched into the UK on 29 January and it has confirmed that it will be at Mobile World Congress and showing off the 10x zoom system, perhaps in a launch device. The event is scheduled for 23 February, so expect Oppo to kick off the action, and that might include a 5G handset.
Qualcomm to go 5G crazy
Qualcomm has been talking about 5G for a number of years and developing working 5G hardware. With 2019 being the year of 5G, you can expect Qualcomm to saturate the news with 5G information, from hardware to devices.
Samsung Galaxy F and Galaxy Sport
Samsung has confirmed that the Galaxy S10 will be announced on 20 February, so we'll have the Galaxy S10 models just before Mobile World Congress. However, Samsung might use MWC to show off the Galaxy F/X - its folding phone - and there's rumour of the Galaxy Watch Active, a new smartwatch. Currently there will be no Samsung press conference at MWC, so this might all happen before.
Sony Xperia 10 and others
Sony launches lots of phones and MWC is likely to see the launch of the latest Xperia. The company launched the Xperia XZ2 in 2018, but then launched the XZ3 in August. Rumours suggest that we'll see a new Xperia device launched in Barcelona with three cameras on the back and a 21:9 aspect display - and a shift in naming, with the Xperia XA3 said to launch as the Xperia 10. You can expect an announcement on 25 February, with a press conference scheduled for 8:30am CET.
Xiaomi at MWC 2019
Xiaomi isn't new to MWC, but it has been increasingly raising its profile outside of homeland China - and 2019 is set to be the biggest year yet. Xiaomi has confirmed that it's hosting a press event on 24 February, and that could bring the Mi Mix 3 5G - but it has also been confirmed that the Mi 9 flagship will be unveiled.