LimX Oli vs Tiangong Ultra

LimX Oli is a pre-order, 165 cm, 55 kg, 31-DoF biped research humanoid from LimX Dynamics, priced from RMB 158,000 (~$21,800). It has dual Intel RealSense depth cameras, a 6-axis IMU, modular design and slide-out battery, but no official payload, runtime, battery capacity or walking speed. The strongest public evidence is a secondary research summary reporting stair climbing of a 33-step spiral staircase in 12 seconds with zero falls, and benchmark returns of 0.85 for velocity tracking. Official video titles claim fully autonomous tennis ball picking and scalable autonomous deployment, but no transcripts or independent verification were found. No named customer deployment exists

Tiangong Ultra is a bipedal humanoid research prototype from Beijing Humanoid Robot Innovation Center (X-Humanoid), standing 1.8 m and weighing 55 kg (or 52 kg per BaiduWiki). It won the world's first humanoid half-marathon in April 2025 (21 km in 2:40:42) and has demonstrated climbing 134 stairs, navigating rough terrain, and sprinting 100m in reported times as low as 8.64s. However, autonomy is only claimed, manipulation and endurance specs are unknown, and the robot is not for sale. Strongest evidence is the half-marathon win with media coverage; weakest is missing manipulation, commercial deployment, and verified autonomy