Four-legged robots that scramble up stairs, stride over rubble, and stream inspection data — no preorder, no lab coat required.

The pick of this week's UCL action sees the injury-hit Los Blancos host Pep Guardiola's men.

Live stream the Champions League for free from anywhere in the world with ExpressVPN. Joseph Green is the Global Shopping Editor for Mashable. He covers VPNs, headphones, fitness gear, dating sites, ...

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