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2

Definitely go for ANT+. If a sensor packs up, it's much easier to replace it if it uses ANT+ rather than a proprietary protocol. If you want to upgrade anytime soon (to get GPS etc) you only have to replace the head unit. If decide you want to track your rides on Strava/ridewithGPS etc you can connect to many new phones (mainly Samsung and Sony). Well worth ...


1

If your GPS bike computer doesn't include a map[1] and you're navigating from a topo map, having the elevation can be very useful for making route decisions. In the bad old days before ubiquitous GPS, by far the most useful navigation tool in the mountains for me was a barometric elevation watch. That and a topo map was my go to tool 90% of the time. Of ...


3

Historical Contingency Looking to history earlier versions (e.g., Garmin Edge 305 and Edge 705) came with barometers for elevation. This was long before Strava, and during a time when you did all the analyses on your own computer. Some analysis software supported getting elevation data from other sources, others didn't. And at the time accurate and free ...


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In addition to the answers above, vertical measurement increases the gps accuracy of your x/y coordinates. If a GPS unit has terrain data stored, it will be able to have a more confident match for its stated x/y coordinates based on the addition of that extra altitude variable. For example, if the unit has two possible coordinates for you, one being a 55% ...


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Ever had that "this has to.... be the top.... oh sh$%.... it's a crest.... there's more...." feeling. Knowing altitude lets you pace your climb and arrive the the top without over (or under) doing it. Imagine riding flat roads without knowing speed or distance - it can be done, but to maximize training effort or race performance you need to know ...


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I find when climbing that horizontal speed is fairly meaningless but vertical speed can be quite helpful for keeping you going and/or interesting. When you know a climb is 1000m and your computer says whatever-kmh, you've no idea what that means without maths and knowing the gradient, 1000vmh means an hour to go, 500vmh, 2 hours... and so on.



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