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From Fellrnr.com, Running tips
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* While the standard battery life is not great at 8 hours, you can configure the Ambit2 so it only checks GPS data periodically, which compromises [[GPS Accuracy]] but improves battery life. I found that after 20 hours of use with 1 minute GPS checks I had a claimed 61% of battery life left, giving a projected life of about 50 hours.
* The Ambit2 will download a list of GPS satellites for quicker GPS acquisition. This seems to work well, and when the cache is stale because the watch has not been connected to the internet for a while, GPS acquisition is still reasonable.
* The Abmit2 displays Training Effect, but unlike the Garmin units you have to explicitly set your 'activity class' rather than have the watch work it out automatically. In many ways I prefer having the activity class set explicitly. * There is also support for "recovery time", though it's less obvious than the Garmin implementations which display the value at the end of each workout. The recovery time also resets with displayed at the end of each workout is for that workout alone, which is rather than being a useless. You can go into the log book to find the cumulative recovery time, which limits its usefulnessbut that's a pain.
* The Suunto web site (movescount.com) has remarkably good analysis and data from the Ambit2.
* The "R" version of the Ambit2 is available in black or white, with the white version intended for women. I tried the white version as I have smaller wrists and I found the materials used for the strap are remarkably soft and comfortable.
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|[[File:TomTomHRM 2.jpg|none|thumb|x300px|This run has more problems than is typical, with the TomTom repeatedly giving a bad reading.]]
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|[[File:TomTomHRM HIIT.jpg|none|thumb|x300px|This is an example where the TomTom is fitted tightly and gives a good reading of a [[High Intensity Interval Training]] session. The TomTom is in red and you can see that it's reading lags a little behind the chest strap. This is an extreme test, but you can see the TomTom can be out by 10 BPM, but only for a short time.]]
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=Buyer Beware=
