4 ms·It can do it over 8 hours while you're sleeping though.by olalonde 3mo agoIt can do it over 8 hours while you're sleeping though.Fizz43 3mo agoand cost more than a maidKostic 3mo agoSure but that holds true for most new tech. Expensive and slow but it can only get better or stay the same. I'm thinking it's only going to get better.