The Sony SmartBand SWR10 is Sony’s current fitness band offering. Specifically designed to work with phones like my Xperia Z2, it also works with a number of other Android devices. Available in a variety of colors, the Smartband works in tandem with the Lifelog App to record your activity and much more. I got mine yesterday, and I’m already impressed.The band comes with the “Core” which is the brains of the system and with two, soft rubber bracelets. That means you don’t have to pre-determine what size you want as you do with the JawBone Up. IP58 rated, the band had Bluetooth 4.0 and offers NFC pairing. (Getting started with the Sony SmartBand SWR10 was the first time I really had a chance to appreciate how easy NFC makes it to set up new devices.) 
As Sony explains,
The SmartBand is a 24/7 wearable device. It’s waterproof and you can keep it on you whatever you do. It’s discreet and designed to look great with any clothing style. Choose from a range of vibrant colors and styles and switch them daily to match your mood. An iconic metal Sony fastening button and LEDs give it a premium look and feel. The SmartBand incorporates a removable core unit and a stylish and comfortable wrist band.
The band itself is the most comfortable band I have tried and the app, which I’m just beginning to play with, seems remarkably powerful. It not only logs steps but it records locations, activities and much more It also lets you review your day and get a sense of what you were up to. Smart alarms, sleep tracking and app control are just some of the features it offers.
