Read full review here: <a href=" Today we look at the 15.6 inch £850 Optimus Nebula from renowned UK system builder ...

Tesla and XPeng are leading the $5T humanoid robot race with Optimus and Iron, respectively. XPeng’s Iron is already on factory floors, while Tesla’s Optimus faces China-related supply delays.

Elon Musk has said Optimus production faces challenges over China's rare-earth export restrictions. The Tesla CEO said China wanted assurance that the parts wouldn't be used for "military purposes." ...