It won't be a smartwatch, and it won't be a tablet. So what new product category does OnePlus plan on entering this April?

The startup's co-founder, Carl Pei, on Tuesday teased the company has something on the horizon, but, of course, refrained from spilling all the details. There's been a lot of hope the company would introduce a tablet a la its OnePlus One, but it appears Pei has no such visions of grandeur.

So what will the company announce? There are a number of possibilities—some crazy, some not so much. An activity tracker could be one possibility, or maybe its own set-top box? What about the possibility of a VR headset? One would think the company would keep it in the mobile realm, though Pei could completely surprise us with something we haven't even thought of.

The company really impressed with its first smartphone, the OnePlus One, so we're excited to see what the company is cooking up. Outside of testing out new waters, the company has already said it's hard at work on a OnePlus Two, which will supposedly come with some major "hardware surprises."

A OnePlus speaker? OnePlus Chromebook? Computer? We don't know, but it's supposedly coming in April, so we'll just have to wait and see.