Vi, AI Personal Trainer Like a good human coach, Vi monitors your performance and adjusts feedback accordingly. Facebook Prev Article Next Article Gadgets Checkout these cool gadgets... Related Posts FireFly – LED Skateboard Magic Tap Gadget Stops Kids from Spilling Drinks Cadillac Baby Stroller Has Flames on Tailpipes In Japan Even the High-Speed Toy Trains Float On Magnets 3 Dimensional Display Air Hockey For Loners