It's a class in a gym that offers kickboxing, MMA, box and even karate lessons. Funny that you'd compare boxing and meditation, they might seem different at a glance but meditation is essentially about increasing the amount of time you're able to focus your attention on the present moment and that's something that's also very important in martial arts of any kind. Perhaps even more so given how the lack of focus during a boxing class can result in a 100kg dude scraping the skin off your forehead with his jab - or worse. I wouldn't say boxing is better than meditation, but I find that it complements it really well. Very often we're able to get away with being lost in thought in our everyday lives because there are no severe, immediate consequences like a left hook to the liver to punish us for that. And that's really unfortunate given how mindlessly wasting our time on scrolling through facebook or self-inflicting ourselves with some unnecessary mental suffering, can be even more detrimental in the long run than the aforementioned liver shot.
Long story short, boxing is great both for the mind and the body. I'm super happy that I finally tried it.