Unitree B2

Unitree lists more than 40 kg while walking and at least 120 kg standing, under test conditions. Count every mounted item (sensors, brackets, compute, batteries) and keep a margin; heavy or tall payloads reduce stability and runtime on stairs and slopes.

More than 5 hours and 20 km unloaded, or more than 4 hours and 15 km carrying 20 kg. Speed, terrain, temperature and payload all change real runtime.

The B2 walks on feet, which suits stairs, rough ground and precise footholds. The B2-W adds powered wheels to its legs, so it is faster and more efficient on roads, corridors and other smooth surfaces while still stepping over obstacles.

The robot is rated IP67, so it handles dust and rain well. Mounted sensors and third-party equipment may have a lower rating, and IP67 does not cover pressure washing, deep water or corrosive sites.

Unitree lists obstacles of around 40 cm and slopes over 45 degrees. Loose gravel, mud, wet steps and tall payloads all reduce that, so test the real route with the real payload.

Yes, with the right sensing, compute and software package. Autonomous patrol also needs mapping, communications coverage and, for repeated missions, a charging plan. Tell us the route and we'll confirm what's needed.