I have the FT 80 has not quite one year. Conclusion: Actually, I value every training session, I make out. Since then I have the FT 80, is no longer the. Sequentially: When I started the FT 80 I initially thought it would be defective. The screen is so dark that it is not readable. But IWE that is so, I thought, give him a chance. An error. The manual is not worth mentioning, you have to read on the net. Makes it and the ease of use is not better. Every now and then the settings (alarm limits, etc.) are gone and must be reentered. These constant problems come to the station: The connection is interrupted, then only does the clock (this is the thing but definitely too expensive). Then after a year of not transmitter failed entirely to his service. Despite Changing the battery disconnects, and you get the nice message: "Check transmitter". So I returned to sender: simple answer after 4 weeks: "No fault detected" .Seltsamerweise does the selling of me in the meantime, the transmitter and the transmitter of the device my girlfriend easily. The site is completely overloaded, the fitness programs want everything, but can not do anything right, an evaluation and analysis of the data difficult to get used to. Overpriced, poor, unwilling Customer who lets stand a in the rain. Weak. Never again Polar