The Mobile World Congress event is a vital one for Samsung. Along with the Galaxy S6, we'll be watching for new wearables and a mobile payments system.
On March 9, Apple is widely expected to let us know exactly when its much-anticipated Watch line will ship and how much all the new models will cost. But what other new products might Apple unveil?
The most important things to know when shopping for a cell phone.
The new Galaxy phones have fast, wireless charging
The new Galaxy S6 and Galaxy S6 Edge sport similar specs, in slightly different shapes.
At least one company says smartphones don't have to be rectangular slabs.
Taking a second look at the new XPS 13, this lower-end version costs less and has better battery life, but isn't as tightly designed.
The Roost Smart Battery packages Wi-Fi connectivity into a 9V package. Put it into your old smoke detector, and you'll know if it sounds no matter where you are.
New devices from high-end watchmakers Frederique Constant, Mondaine and Alpina look like traditional timepieces but have motion and sleep tracking.
The design on this less-expensive version of the XPS 13 isn't as slick, but battery life gets a big boost.