Bittle has a tiny body, but it has strong and fast servos for running and even backflipping(check this video https://www.youtube.com/watch?v=FRE-sp05ia8&list=TL

Bittle has a tiny body, but it has strong and fast servos for running and even backflipping(check this video https://www.youtube.com/watch?v=FRE-sp05ia8&list=TLGG0bKEfuYvDmsyNDA0MjAyNA https://www.youtube.com/watch?v=FRE-sp05ia8&list=TLGG0bKEfuY...). We custom-designed our own high-quality servos which are half of the prices of any comparable servos. We already had a prototype with 3 degrees of freedom on the legs. But the structural complexity and price would have increased substantially. We are not releasing it at this moment. You can check Petoi robot joint index documentation at https://docs.petoi.com/petoi-robot-joint-index https://docs.petoi.com/petoi-robot-joint-index