Cubits(Cube + Bit) are mass produced small mecha models, developed and manifactured by Kronbits.

They are used for various things, such as crash testing, companionship and support.
They can be used in place of a communication device, to communicate and control accessed machines and mechs, as well as get summarised reports on specific topics sent to your personal device.
But also just like a little mechanical companion, to follow and help you through the day.
They are usually small and pocket sized, but some have also produced bigger sized versions of them, used as mounts or even vehicles.
They are loved by folks of any age or species.

The Manufacturer allows for visual modifications and adjustments,while keeping its main systems and AI safe from most outside forces to not pose a danger to its consumer.

S1 in their name stands for Small 1, pointing at the Models version.
You can identify them with the #CubitS1 tag on Toyhouse