Sunday is a day packed full of launches and two of the biggest are Samsung and Huawei's.
Samsung is expected to unveil its Galaxy S7 smartphone and S7 Edge, the latest flagship handsets in its range. The world's biggest smartphone maker warned of possible softer earnings this year due to a slowdown in the market and is looking to new areas such as virtual reality (VR) to fill the gap. In a video teasing the event, Samsung showed a person putting on their newly-released Gear VR headset and reaching out towards a slightly open box.
Huawei has had an impressive year with Smartphone sales up 44 percent year-on-year in 2015. Rumors about the company's next device have been swirling around the internet, and Huawei will be looking to build on its success from last year.
Xiaomi is also making its first appearance at MWC, hosting a press conference just after an event in Beijing where it is expected to show off its latest handset, the Mi 5.
"We continue to believe that Chinese players such as Alcatel OneTouch (TCL), Huawei, Lenovo, Xiaomi and others are the companies to watch in this space as traditional players like HTC, Microsoft and Sony lose market share," research company CCS Insight said in a note.