# New Medtronic 770G pump
**URL:** https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767
**Category:** Type 1 & LADA
**Created:** [January 15, 2021, 7:27pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767 "2021-01-15T19:27:43Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@mawmawned](https://forum.fudiabetes.org/u/mawmawned)
#### Post date: [January 15, 2021, 7:27pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767/1 "2021-01-15T19:27:43Z")
Does anyone have the new 770g Medtronic insulin Pump? I have the 670G. I stopped using the guardian CGM that works with the pump because medicare doesn’t pay for the sensors. I also found that the results showing on my pump were anywhere from 40-50 points off. my A1c’s were NOT good. I switched to the Dexcom G6 CGM and they closer to my actual BG. I know you don’t have to calibrate , but recently I have found the bg readings are more off than usual. So I calibrate after a few hours of a new sensor and do a random about half way through the 10 days. Any one else having those issues with correct BG readings?
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### Author:  [@eilatan](https://forum.fudiabetes.org/u/eilatan)
#### Post date: [January 18, 2021, 10:49pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767/2 "2021-01-18T22:49:19Z")
The quality of the sensors in the G6 really seem to vary. I have had some that required constant calibration over the 10 days and others that required none.
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### Author:  [@Eric](https://forum.fudiabetes.org/u/Eric)
#### Post date: [January 19, 2021, 4:59pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767/3 "2021-01-19T16:59:28Z")
> [@mawmawned](#):
>
> I switched to the Dexcom G6 CGM and they closer to my actual BG. I know you don’t have to calibrate , but recently I have found the bg readings are more off than usual. So I calibrate after a few hours of a new sensor and do a random about half way through the 10 days. Any one else having those issues with correct BG readings?
I found the G6 to be more accurate for me when I calibrate it frequently. Since I test my BG a lot anyway, it is not problem for me to just enter the number in and calibrate it. The G6 just seems more accurate for me that way.
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### Author:  [@CatLady](https://forum.fudiabetes.org/u/CatLady)
#### Post date: [January 20, 2021, 3:38pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767/4 "2021-01-20T15:38:24Z")
> [@Eric](#):
>
> when I calibrate it frequently.
I think I calibrate more with G6 than I ever had to with the G5! 😳
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### Author:  [@bkh](https://forum.fudiabetes.org/u/bkh)
#### Post date: [January 20, 2021, 6:34pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767/5 "2021-01-20T18:34:45Z")
And because YDMV I basically never calibrate the G6. I may take a fingerstick during the first 12 hours to calibrate my brain, but I leave the G6 alone on the theory that it will come back into reasonable accuracy by itself (which I verified to my satisfaction on the first 2 G6 sensors I used.) Perhaps I would see ample reason to calibrate if I were still lean and muscular, but for me those days are a decade in the past.
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### Author:  [@Chris](https://forum.fudiabetes.org/u/Chris)
#### Post date: [January 20, 2021, 6:40pm UTC](https://forum.fudiabetes.org/t/new-medtronic-770g-pump/10767/6 "2021-01-20T18:40:27Z")
Same here. No calibration required for us.