"The materials it's been made with, the remarkable precision with which it's been built -- never before have we built a product with this extraordinary level of fit and finish," boasts Apple's Jony Ive of the iPhone 5 and iPhone 5S.
"We've developed manufacturing processes that are our most complex and ambitious. The variances between product to product we now measure in microns," says Ive. "We believe that going to these extreme lengths is the only way we can deliver this level of quality."
"We don't want to make a new phone, we want to make a much better phone. iPhone 5 is the result of this approach. It's been completely redesigned," says Ive, explaining the bigger screen of the iPhone 5.
"Even with the larger display, it's the thinnest, lightest iPhone we've ever built."
"The M8 is the epitome of a lot of the design principles we have been working with over the past decade," HTC says. "We took that metal housing and we were able to wrap it all the way around to the screen, completely eliminating all of the polycarbonate sidewalls that we had before.
"In your hand, you can feel the authenticity of the materials... the rigidity and the strength."
"It's interesting to see how we've had to take something that was actually quite good and take that to the next level," says Claude Zellweger, HTC's associate vice president of design, rather underselling the previous-generation HTC One.
"When you hold the phone in your hand you don't feel any hard edge anymore," says Zellweger. "That wouldn't have been possible without countless hours of work between the design team, the engineering teams and the antenna teams."
"Our major aims were usability, friendliness and a more humanistic design," says Kim. "We wanted something with a pleasing feel... and better grip. With plastic, the texture is warmer... if we used metal, the designs felt heavy and cold."