The only phone named after math —

The OnePlus 3 brings a Snapdragon 820, 6GB of RAM, and aluminum body for $399

The best part is you can actually buy this one: There's no invite system.

After the OnePlus One, 2, and X, OnePlus is back with a new flagship, the OnePlus 3. OnePlus is going for the "bang for your buck" market here with a Snapdragon 820, a whopping 6GB of RAM, and a 5.5-inch 1080p AMOLED display for just $399/€399/£309.

The device ships with 64GB of storage, but unlike the OnePlus X, there is no expandable storage option. The battery is also a tad smaller than previous models: 3000mAh. All the other extras are here: you get NFC, a dual SIM slot, fingerprint reader, and a USB Type-C plug. The camera is 16MP with optical image stabilization, RAW support, and manual controls. Oh, there's also a 3.5mm headphone jack, which is something we have to check for now on phones of the future. The body is aluminum and comes in "Graphite" and "Soft Gold." Like in past OnePlus designs, there are three hardware buttons at the bottom, with the middle "home" button doubling as a fingerprint reader.

OnePlus is making a big deal of its "Dash" phone charger, which it says will charge the phone to 63 percent in a half hour. During Dash charging, the power management system inside the phone shuts off, and the system inside the charger takes over. OnePlus says this keeps the phone cooler during charging, allowing the battery to charge faster. This requires a proprietary "Dash Charge" cable and adapter.

The phone is on sale right now, with none of OnePlus' past invite system nonsense. You can just head over to their website, click "buy," and the phone should arrive. What a novel concept!

Channel Ars Technica