Think you need a smartphone to pay for things with your wrist? Think again. Thanks to a partnership with American Express and NFC technology, you can use the Jawbone UP4 at any of the same places you'd use Apple Pay or Google Wallet. Just log in to your Amex account in the Up app, choose the card you'd like to use, and you're all set. Of course, it boasts the same tri-axis accelerometer, bioimpedance sensors, skin sensors, and ambient temperature sensor as its predecessor, so you get the same activity, sleep, and health tracking you'd expect to go with your new wireless wallet.