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Sensible VAM


This datafield shows live climbing rate / vertical speed / VAM (velocita ascensionale media, ital.). </p><p>It does this much better than the stock vertical speed data fields,</p><p>which seems to rely on GPS data, which is the worst sensor for the job.</p><p></p><p>A gradient field is also available.</p><p></p><p>Details:</p><p></p><p>- Uses the best available data: barometric altitude, GPS as a fallback.</p>

What’s New

1.2.2-2:</p><p>- Re-build with most recent lib and source version.</p><p>1.2.2-1:</p><p>- Build with new SDK for many new devices.</p><p>1.2.2:</p><p>- Build with SDK 3.1.9 with annotatated barrels to reduce code size.</p><p>- Support new Edge ?30 Plus models.</p><p>1.2.1:</p><p>- Slightly improve layout. Align the value more like a stock data field.</p><p>1.2.0:</p><p>- Add support for watches</p>

Additional Information

  • Edge® 1000 Edge® 1000
  • Edge® 1030 Edge® 1030
  • Edge® 1030 Plus Edge® 1030 Plus
  • Edge® 1030, Bontrager Edge® 1030, Bontrager
  • Edge® 1040 Edge® 1040
  • Edge® 130 Edge® 130
  • Edge® 130 Plus Edge® 130 Plus
  • Edge® 520 Edge® 520
  • Edge® 520 Plus Edge® 520 Plus
  • Edge® 530 Edge® 530
  • Edge® 820 Edge® 820
  • Edge® 830 Edge® 830
  • Edge® Explore Edge® Explore
  • Edge® Explore 1000 Edge® Explore 1000
  • Edge® Explore 2 Edge® Explore 2
  • Edge® Explore 820 Edge® Explore 820
  • Enduro™ 2 Enduro™ 2
  • ForeAthlete® 735XTJ ForeAthlete® 735XTJ
  • Forerunner® 245 Forerunner® 245
  • Forerunner® 245 Music Forerunner® 245 Music
  • Forerunner® 255 Forerunner® 255
  • Forerunner® 255 Music Forerunner® 255 Music
  • Forerunner® 255S Forerunner® 255S
  • Forerunner® 255S Music Forerunner® 255S Music
  • Forerunner® 55 Forerunner® 55
  • Forerunner® 645 Forerunner® 645
  • Forerunner® 645 Music Forerunner® 645 Music
  • Forerunner® 735XT Forerunner® 735XT
  • Forerunner® 745 Forerunner® 745
  • Forerunner® 935 Forerunner® 935
  • Forerunner® 945 Forerunner® 945
  • Forerunner® 945 LTE Forerunner® 945 LTE
  • Forerunner® 955 Forerunner® 955, Forerunner® 955 Solar
  • fēnix® 5 fēnix® 5, quatix® 5
  • fēnix® 5 Plus fēnix® 5 Plus
  • fēnix® 5S fēnix® 5S
  • fēnix® 5S Plus fēnix® 5S Plus
  • fēnix® 5X fēnix® 5X, tactix® Charlie
  • fēnix® 5X Plus fēnix® 5X Plus
  • fēnix® 6 fēnix® 6
  • fēnix® 6 Dual Power fēnix® 6 Dual Power
  • fēnix® 6 Pro fēnix® 6 Pro, fēnix® 6 Sapphire
  • fēnix® 6 Pro Dual Power fēnix® 6 Pro Dual Power
  • fēnix® 6 Pro Solar fēnix® 6 Pro Solar
  • fēnix® 6 Solar fēnix® 6 Solar
  • fēnix® 6S fēnix® 6S
  • fēnix® 6S Dual Power fēnix® 6S Dual Power
  • fēnix® 6S Pro fēnix® 6S Pro, fēnix® 6S Sapphire
  • fēnix® 6S Pro Dual Power fēnix® 6S Pro Dual Power
  • fēnix® 6S Pro Solar fēnix® 6S Pro Solar
  • fēnix® 6S Solar fēnix® 6S Solar
  • fēnix® 6X Pro fēnix® 6X Pro, fēnix® 6X Sapphire, fēnix® 6X Pro Solar, tactix® Delta Sapphire, quatix® 6X Solar, tactix® Delta Solar, tactix® Delta Solar Ballistics
  • fēnix® 7 fēnix® 7, quatix® 7
  • fēnix® 7S fēnix® 7S
  • fēnix® 7X fēnix® 7X, quatix® 7X – Solar Edition
  • fēnix® Chronos fēnix® Chronos
  • Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2
  • Mercedes-Benz Venu® 2S Mercedes-Benz Venu® 2S
  • quatix® 6 quatix® 6
  • quatix® 6X quatix® 6X, quatix® 6X Solar, quatix® 6X Dual Power
  • tactix® 7 tactix® 7, tactix® 7 – Pro Ballistics Edition, tactix® 7 – Pro Edition
  • Venu® Venu®
  • Venu® 2 Venu® 2
  • Venu® 2 Plus Venu® 2 Plus
  • Venu® 2S Venu® 2S
  • vívoactive® 3 vívoactive® 3
  • vívoactive® 3 Mercedes-Benz® Collection vívoactive® 3 Mercedes-Benz® Collection
  • vívoactive® 3 Music vívoactive® 3 Music
  • vívoactive® 4 vívoactive® 4, GarminActive
  • vívoactive® 4S vívoactive® 4S, GarminActive S
Average Rating: (3 Ratings)

Emil Schläger
May 13, 2021 | Version 1.2.2

Great tool! I am generally a big fan of the concept "VAM", for I am one of these unlucky persons not having a power meter. I's a really good pacing tool on (primarily long) climbs, and in some cases even better than the power estimation data fields you can get, since it generally is less spiky.

Kornelius Krieger
April 21, 2019 | Version 1.1.1

Very useful tool! This is the second best method after powermeter for pacing on hill climbs and also to train using power on hill climbs. On my bikes without powermeter I use this APP to estimate my power output on the hill climbs. I use it for grades bigger than 5%, then my speed is below 15km/h, means wind resistance can be neglected. I made a chart based on my weight + bike weight and used tools on the internet (bikecalculator) to correlate VAM to power out put.

Niko Checkow
March 30, 2019 | Version 1.1.1

Useless! Neededs is something that shows VAM as a 3s or 10s average. This one takes a long time to settle on a average value. Perhaps on long climbs acceptable but useless on shorter ascents. Also starts with a value that is not zero, like it should be. It reads -300 or something like that.

Developer Reply
April 1, 2019, flyingflo

Thanks for your poorly researched feedback. I'll try to explain your issues. - The intended audience for this datafield are riders, who are unsatisfied with the stock vertical speed datafield of Garmin devices. If you find it useless, please use the stock datafield. - Averaging time can be chosen in the App-Settings. Try to set the filter length value to 1. This will result in a three seconds averaging (given the three seconds sample reate), as you wish. However, VAM as a performance metric doesn't make much sense on short climbs, thus the default value applies more smoothing and higher accuracy. - The settle time depends solely on the averaging filter length. The altitude sensor resolution is limited, thus accuracy requires longer filters. Everybody is free to configure it in the settings. - If you see a non-zero reading while stationary, please watch the altitude value and you will see that it changes as well. This is most likely the result of the automatic GPS-based calibration of the barometric altitude sensor after the initial GPS fix. The datafield correctly processes the changing altitude. I've never seen this after the calibration is done. The datafield can't distinguish if you're riding and elevator or if the sensor calibration is running, it just processes altitude changes over time.