cheap bike computer v. my tracks on phone

[polishmadman]

Which of these is more accurate? It may sound stupid but I'm not sure.
Reason I ask is because, my bike computer told me I averaged just over 5 mph. At the same time my tracks said it was over 13 mph.

[Rimmer]

5mph is god awfully slow so 13mph is probably closer.

[doctor j]

Your bike computer is likely not adjusted properly (proximity of sensors) and/or the wheel circumference is not correct.

[polishmadman]

I'll just stick with my tracks

[MrWesson]

I'll just stick with my tracks

Or you can adjust the bike computer by inputing the correct size wheels/tires and adjusting the magnet. Then you will have both and you can open my tracks and toss it in a bag or whatever.

I use my bike computer and my tracks(phone in camelpack).

[adaminlc]

I recently started using my phone with mapmyride.com app with my old cateye which all really use it for now is cadence and realtime speed. I relly on the gps for distance as that function no longer works on my computer. they make a really good pair that I wouldnt trade for a Garmin.