Hi everyone,
Here's my personal experience and disappointment. Maybe some comments here can be helpful.
I bought the FR 745 about a year ago. I followed daily suggested workouts from the beginning. I also ran with the hrm pro chest band from the beginning for lactate based zones.
The watch brought me in about 9 to 10 months from VO2 52 to 59. Base runs from 5:50 up to 5:00min/km in the end.
This all seemed to go gradually, feeling a little faster and fitter every day. Trained almost always productive or holding on.
My 5k prognose went for example to 18:30, and in reality i ran a race in 18:15, so it was pretty close and always kust little above what i could.
The last day i was wearing the watch, my prognose for 5k was 18:07.
Then i sold the watch and switched over to my new FR 255. I bought it specifically for the race widget so it could let me peak me to my races, hrv, and some other new features.
But while I continued training, already from the beginning, it prognosed a 19:07 at the 5k instead of 18:07 days before.. I thought it would drop after i was wearing it for a couple of weeks, but i turned out to be not the case.
After wearing it now for 2 months for 23 our a day, and following his daily suggested workouts, my VO2 has dropped every single day from 59 to 57 right now. My curve has been going down for 2 months now.
My prognose at 5k is 19:17, while in reality i run at around 18 flat..
It tells me to do my base runs at 5:15 instead of the 5:00min/km to where i builded up for so long..
So to me it is clear that the data of the FR 255 are way more off then the data off the FR 745.
It's not encouraging to see your fitness dropping, almost never reach the productive state, although i follow all his plans almost every day to the second and train 5 days a week.
At this point, I don't know what to do and consider just running with other plans or just follow my own feeling, but then the watch beeing useless and money wasted..
