CES is still the biggest consumer tech showcase in the early part of the year, but if you're a smartphone company, you increasingly save your big announcements for Mobile World Congress in February. We're on the ground at the show this year, and we've already been busy. For those looking to find a TL;DR version of the biggest happenings, we've rounded up all of the major announcements on day one to help you keep up.

We'll have more coverage for you as the week rolls on. Follow our landing page here for all the latest updates.