Packing:
The tape is attractively packaged in a transparent case. Comes the so-called. Core, the core of the smart bands, two bracelets (small and large) and a charging cable which can be used with any standard mobile phone charger. The manual is sufficient for commissioning. Otherwise, Sony can be found online everything you look for.
4/5 stars for this. With complete instructions it would have been 5.
Comfort:
I wear in felt average wrists, the smaller of the two bands in the second-most position. It sits just then so loose that it neither rumflattert nor suppressed. I think by the two bands any wrist variants are covered, possibly even ankle ;-) One notices hardly the arm, but the rubber coating of the tape makes from time to time for trailer, just the wear of sweaters. However, it is not disturbing.
I do not wear wrist watch because I do not like the feeling. When SWR10 I have not this effect. It feels comfortable.
5/5 star.
Technology:
The Core is the heart of the band and includes the sensor. He is charged via mini-USB and then simply inserted into the band. A simple system that needs no explanation. The core has 3 LEDs and a button. This can surprisingly much. What it does is dependent on the pressing duration and the situation. But I will not describe in detail, except that it works very well. Connection I have tested only via Bluetooth. This works great. I would note that a visible link in the mobile phone is not necessary. The data exchange works the same way. This had only confused me a bit. I could not detect any additional consumption of battery in my phone, despite the fact that I'm wearing now my Bluetooth permanently. Particularly impressed me the sleep phase alarm clock-controlled, which is why I bought it, yes. I will optimally aroused when I'm half asleep and it works well! Provided, however, that the phone is on. For me it works even when it's down in the kitchen at the store and I think about lying in the bedroom in bed. My wife is not getting with the vibration, unless it touches the tape. To avoid this I wear it at night on the other side.
Furthermore, the tape can pass on the notifications of mobile phones, that vibrate when the phone something happens. This works also very good.
I can not say anything about the water tightness, as I take it for showering. When hand washing or similar However, I am not afraid and thus has been able to detect any problems. But I think you can rely on the IP certification here and that I pour any water into the charging port, should also be clear. The battery life is very good. Can cope with, especially since it does not take overly long to charge every 4-5 days.
5/5 stars for technology
Overall I give it 5/5 stars because it's for my application's expectations fully met and also very reasonably priced (if you choose the Brazil Edition). Why a black band is so much more expensive, I do not understand, but that as such has nothing to do with the tape. Tapes can be incidentally buy more.