Fingerprint smudges on your smartphone, a necessary evil. Fingerprint smudges on your mom’s personal massager, whoa. But fingerprints on the iPhone 5S ($199 for the 16GB model, $299/32GB, $399/64GB) are downright vital. Apple’s newest top-of-the-line iPhone features a zippy 64-bit A7 processor, bigger sensor in the camera, and rapper-worthy color schemes. But it’s the fingerprint recognition feature (“Touch ID”) that’s building buzz here. It’s built right into the home button and can be used for security or even to buy stuff on iTunes. Get your paws on one September 20.