# Results! - The G5-G6 Challenge - An actual comparison

**URL:** <https://forum.fudiabetes.org/t/results-the-g5-g6-challenge-an-actual-comparison/9258>\
**Category:** C/GM\
**Created:** [February 4, 2020, 5:01pm UTC](https://forum.fudiabetes.org/t/results-the-g5-g6-challenge-an-actual-comparison/9258 "2020-02-04T17:01:36Z")\
**Posts on this page:** 1\
**Showing post:** 18

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**Author:** ![jbowler](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@jbowler](https://forum.fudiabetes.org/u/jbowler)\
**Post date:** [February 17, 2020, 2:14am UTC](https://forum.fudiabetes.org/t/results-the-g5-g6-challenge-an-actual-comparison/9258/18 "2020-02-17T02:14:15Z")

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> [@BillKast](#):
>
> Come back to the screens a few minutes later and Dex graph looks very pretty. Loop graph is noisy.

Yes. For a graphical picture of what is happening see this post:

> [@Resistant low - puzzling?](https://forum.fudiabetes.org/t/resistant-low-puzzling/9317/18):
>
> For me that delay is about 5 minutes, I’m using the Dexcom G6. If I do a fingerstick in the intervening period I seem to get a lower result, but not as low as my bg eventually goes, so I think the fingerstick is delayed by maybe 2-3 minutes from the level in the blood going to my brain. For me vision disturbance happens somewhere in the range 30-40mg/dl, certainly under 50. I’ll let a sub-80 figure hover without immediate treatment if the CGM shows a flat line and I’m at home with my wife, …

I superimposed recorded values from SugarMate over the 3-hour delayed values reported to Apple Health from the Dexcom app. The adjustment is consistent with your two sets of numbers [**I editted the stuff below to align the numbers and remove the spurious double space in @BillKast’s original post.  
I also added emphasis in _italics_.**]:

> [@BillKast](#):
>
> 142, 139, _135, 135, 131_, 132,142  
> 142, 139, _136, 135, 134_, 132,138

What I don’t know yet is whether the adjustment happens in the transmitter or the receiver. Logically it would be the receiver; Dexcom delays an update to Apple Health for three hours, presumably so that it can let that adjustment pan out. The transmitter retains 3 hours of readings, so if you are about to rewrite history probably better not do it for three hours.

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