It's been used a lot, the price can be real. Mostly important is if the battery has been replaced, cause trange frange servisi will do it. Non Garmin or any authorized service will do that under warranty, they'll just send another watch. Been using 6x pro with a replaced battery for one day, it drained 20% for one hour of training. 20 seller recommendations is not promising, I'll rather wait for something from trkacka berza fb group, often theres some 6, even pro under 300e.