How is byakugan similar to the sharingan?

The Byakugan is much better because the Sharingan was derived from the Byakugan. That means the Sharingan was CREATED from the Byakugan. Just because the Byakugan can see chakra points, and the Sharingan has heightened skills or abilities, the Byakugan is still better, without the Byakugan, there is no Sharingan.