The only hardware change seems to be the magnetometer and some color variants.

"The black squirrel is simply a color variant," he said.

The number of color variants is limited by the designer's fantasy only.

The Latin word auratus in its scientific name means "golden", and refers to a less common color variant.

Over the years, some of these color variants have been erroneously described as separate species.

It is aposematically colored, to warn off potential predators, and a number of color variants are known in the species.

It comes in 2 color variants, and black.

Early color variants were mostly selected for utility reasons or religious practices.

A blue color variant is available as well.

The device is sold in three color variants: blue, black and purple.