In comparison, the SW Polar Trainer just can track 2 pair of shoes..
I use the function to keep track of the mileage of all my Running shoes spread among my 2 "homes" (Hong Kong and Dongguan).
Trainers, lightweight trainees, racing flats, etc.... All under tracking (currently I am rotating 6 pairs of shoes....).
To cut it short, both my main training shoes (the lightweight trainers Mizuno Elixir 5 and 6) reached 700km and I deem a good idea to replace them.
Considering my history of injuries, my heavy stride and the fact that with high humidity the shoes are always wet, 700km seems a good number to me. Better replace them a bit more often, but avoid to run on worn out shoes...
Digging out in the cabinet in Dongguan, I realised that I have 12 pairs of new shoes waiting (3 pairs are in HK not pictured below):
Mizuno Wave Ascend - trail running shoes
Mizuno Wave Aero 8 and 9 x3 pairs - marathon shoes
Mizuno Wave Musha 2 - racing flats
Mizuno Wave Spacer RS3 - racing flats
Mizuno Wave Nirvana 7 - support trainers
Mizuno LD track spikes
Adidas Supernova 10 - support trainers
Asics GT2150 - trainers
Asics Lyteracer DS
Asics Lyteracer DS2
Total insanity !!!
The good point is that I did not have to pay for any of them, because all won at the races.... At least my wife can not complain that I squander the money on shoes....
The bad point is that I realised that I had never used any of those models before, so I really do not know where to start from .
Any recommendation or good/bad experience ??