The OBS Cube X is the follow up to the OBS Cube. It’s got the same tall, cube-like shape and also fires at up to 80W, however there are a few notable differences. For one, the Cube X is a little bit taller and wider than its predecessor. Secondly, the Cube X foregoes the 3000mAh built-in battery and instead takes a single 18650 battery for power.