I had a previous model (201, I think) and the 110 is very disappointing. The battery takes less than three hours (missed for a marathon), the clamp system for charging and exchange with the PC is really 'DIY'. GPS reception is sketchy and I errors 5 to 10% on courses Showers. In short, cheap, but if it is to remain in a drawer, it's still too expensive; I will test a model with accéléromtre. Vincent.