How can you make a robotic dog move faster?

Answer: By putting it on wheels.

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That’s what Chinese robotics company Unitree did to its robot dog. The Go2-W is an all-terrain version of the Go2 that replaces the pads on its feet with a motorized wheel. While the company lists the Go2-W's top speed at 5.6 mph, the same as the Go2, in a head-to-head sprint the wheeled bot appeared to be faster.

The wheels are covered with a 7-inch pneumatic tire, and the wheels can be locked if it does need to complete a static maneuver like climbing stairs. The bot uses super-wide-angle lidar and wide-angle vision cameras to take stock of its environment and obstacles. It is also capable of octa-core processing and Wi-Fi, 4G and Bluetooth wireless connectivity. The 15,000-mAh battery can last four hours on a single charge and is capable of fast charging for top offs.

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