MWC 2015: Smartwatches
Pebble
Pebble had two bites of the MWC cherry this year. On the Wednesday before MWC, the company launched it's first colour-screen smartphone, the Pebble Time. Then, on the second day of MWC it launched Pebble Time Steel, which is more-or-less the same thing, just prettier.

Huawei
Huawei stole the show with its smartwatch, which it has called simply "Watch".
The device runs on Android Wear, has health tracking and notification (as is pretty much standard now), and Google Now. It's also damn good looking.
Android Police has more details on the device. We expect it to be available here in June.
LG
LG launched two smartwatches at MWC 2015, the Urbane and the Urbane LTE.

Both are as much about form as function, continuing the trend for smartwatches becoming fashion items, rather than just bits of tech. That's not to say they're weak under the bonnet, though - both feature a Snapdragon 400 SoC, 410mAh battery, and circular 1.3in P-OLED display. More information on both is available in our hands on review.
MWC 2015: Activity Trackers
Smartwatches weren't the only wearables on offer at MWC, there were also a number of activity trackers launched by some well-known and less well-known names.
HTC
As well as a new flagship phone, HTC launched fitness band Grip.
What's more, it's compatible with other trackers via Bluetooth 3 and 4, which makes up for any capabilities it's missing. It's also compatible with iOS and Android, meaning it's competing with the likes of Fitbit and Jawbone, rather than the Samsung Gear Fit, for example.
Huawei
Huawei introduced two activity trackers at MWC 2015, the TalkBand 2 and TalkBand N1. The former is a typical wrist-worn tracker that has cross-platform compatibility with Android 4 and above and iOS 7 and above.
The latter is a bit more off beat - it's a set of Bluetooth headphones that double as an activity tracker (although no one's not quite sure how) and a necklace. Yes, a necklace.
Both the TalkBand 2 and TalkBand N1 will be available in the UK, but no firm date has been set.
Haier
Haier is a German white goods manufacturer that has started to dabble in consumer electronics. Despite its name, the Haier Smartwatch is an activity tracker for children and the elderly. Both devices help parents or carers keep an eye on the wearer, including setting up a "geofence" and, perhaps a little creepily, activating the microphone remotely.
Sadly, there's no details on release date or pricing just now, so you will have to wait to be able to spy on your kids/grandparents.