Garmin Edge 305 Question

[onimity]

Hey SadieKate,

I did write to Garmin about the elevation gain/loss issue and their suggestion was to use Motionbased but I will write to them about the way they market the product and why I'm returning it. If you look at the feature lists you would not understand that the Forerunner doesn't track elevation gain/loss accurately. I would have purchased the correct device in the first place if they had been clear about that or not included that as a 'feature' of the device.

I agree that simple things like release notes would be nice. You'd think that with so many products they might have some organization or standard processes... Actually, I've always been really impressed with their device software.

Lifesgreat,

Don't I wish it could track the wind speed!! It should count as uphill when you have to pedal going downhill just to keep going!

[tygab]

This is from their help page:

Choosing to apply the Tune-Up features here will apply the information automatically when submitting from the Inbox to the Digest. You may always override this preference by choosing to edit the activity.

* GPS Corrections - cleans up location information that can sometimes produce erroneous values
* MB Gravity - cleans up elevation information by cross-referencing the location with an elevation dataset

Please note that MB Gravity is not necessary with the Edge 305 as it has a built in Barometric Altimeter.

I think the algorithms are probably well done. I suppose the only way to know that for sure is to do a side by side with the Edge. But, for my purposes I am believing it as accurate enough.

Edit: haha we just may get to do this as I am convincing my husband to get his Edge with the good deals out there... [he has been coveting my Forerunner data].

[SadieKate]

Tygab, these are the notes from two rides I did recently. I've called Garmin about the inaccuracies and they confirmed that the ForeRunner gain/loss data is incorrect whether you run it through GTC or MB.

Mt Tam mtb ride of 24+ miles:
FR 305 in GTC = 6,456
FR 305 in MB with gravity correction = 4,613
maillotpois' Edge 305 = 3,247 (and based on similar rides and my legs, this is correct)

Lake Solano road ride of 21+ miles on a nearly flat road:
FR 305 in GTC = 1,551
FR 305 in MB with gravity correction = 1,139
Polar and Ciclo data from past rides = 400-405 (and verified by the almost flat road)
MP's Edge 305 = 547

Jobob and Trekhawk could probably give their results from this last ride also if you feel that you need more stats for comparison. I've used a Ciclo and a Polar for a few years now. All of my results are comparable to Edge results. Forerunner results are from another galaxy far, far away.

[tygab]

Hmm. That's unfortunate... thanks for posting the stats. Might have to chat with the folks in Olathe about this...

[onimity]

Yea, my ride last Saturday was similar. It was an organized ride and the listed elevation gain was 5,500 feet. Seems about right given the terrain, it was pretty much flat then straight up.
Garmin Training Center gave me 11,846 ft
Motionbased rounded that down to 8,932 ft.

That's a good idea to convince your husband that he needs the Edge. The deals are really great, especially with the rebate. (Thanks for that!)

Anne

[SadieKate]

Ooh, tres kewl news.

I own a Forerunner with HRM. I just bought the Edge with cadence.

According to the Garmin web site and some sleuthing on motionbased, I can pair the Edge with the same HRM strap.

In spite of my own ignorance, I lucked into something good.

[DrBadger]

Ooh, tres kewl news.

I own a Forerunner with HRM. I just bought the Edge with cadence.

According to the Garmin web site and some sleuthing on motionbased, I can pair the Edge with the same HRM strap.

In spite of my own ignorance, I lucked into something good.

so SadieKate-
Is this the one that you ordered? http://www.amazon.com/Garmin-305CAD-...6084594&sr=8-4

And then you are just going to use the heart rate strap from your Forerunner?

Hmm.... I have a Forerunner 305, and I like it a lot, but have been tempted by the Edge also... and at that price with the $75 rebate it seems too good to be true! Might have to spend a bit more $$......

E.