The nanobots have 4 spider like legs and a wheel that can be retracted. They have a triangular sensor array with various sensors.
Nanobots are equipped with four legs and two eyes. Using the four legs, a nanobot is slower than a biot, but on a smooth surface a nanobot can extend its wheel and outrun a biot. Some are custom built for spinning nano wire, while others are built for reconnaissance and fighting.