Smart is the new band from Sony. It is also a kind of a personal trainer, an alarm clock and a remote control. Certainly, almost 90 euros nothing to sneeze at, but what I thought, if I spend already 600 Euro for a new smartphone, then you should not skimp on something like the Smart Tape. The coupling is effected via Bluetooth or NFC. After the device is updated. If you have already installed all the apps now * you can start already. The Smart Volume will track the number of steps, calories burned, how many videos you look and how long, etc. etc. This all works quite well so far. Whether the values are exactly this can be bad judge, because you're not counting his steps, but on the whole it's okay. The remote control of the Walkman (default app I have only tested) works beautifully for a slightly Rumspielerei. You have to tap really as if you want to tap with your finger the tape stop. Thus, should probably be avoided by tapping a function accidentally. If you have got the hang of it again (I even took a couple of attempts), it works wonderfully. The camera should be operated with the band, as the self-timer. But I have not yet tested. The alarm function also works. By vibrating one is gently brought out of sleep. I personally find it better than an acoustic alarm. The only "negative" is the surface / material of the smart belt. By Riffel Lung remains quick stick dirt, which can be rinsed off but. Thus, the Sony Smart belt is a smart companion in everyday life, even if it is not exactly cheap.