So:
Nike + and the motion sensor in regular calibration (eg every time at my home track) are super combined, so if I run times with ner other route and then nachmesse it is relatively genau..zB Last warens at 5km 10m
Automaitsches synchronize with Nike + Portal when you are synchronizing it with iTunes also handy to graphically his route in Nike + online portal to view (when KM / monthly / weekly and and and what pace etc.Gesamt) to track and his training progress (now does not replace a professional running analysis tool but should satisfy the most).
During training you can press the ON / OFF button and the iPod can say how fast you ride, how far you have walked and how long you are already trained. The only slight downside for me personally, it does not auto-stop function (eg waiting at traffic lights ner rips it halt bit always the total average of the pace, are but worse) When diagram on Nike + I know nacher at least always where I stood at traffic lights ner have: P
The size is perfect, because you can put him super well in the normal running pants pocket. The low weight is not felt while running the same. The supplied earphones are I find not bad running.
Did it not in use (as heart rate monitor with chest strap) but with Bluetooth chest straps can also connect the iPod, can be useful for one or the other.
Furthermore, could be used during the day as a permanent pedometer him. Say you is 10,000 steps a day, and he shows an on how much one is now going around today and announces when the goal was achieved. Well I do not use and I've honestly not tried yet.
So I hope I could even imagine the great for me "Laufpod": P it is natural for all other sports where you want to casually listen to his music through small size and weight ideal.
I am satisfied after TOP 1nem year in hand. So for me, a strong buy recommendation! Even if it "only" for listening to music is.