Hi
@CathyFP, I also moved from Libre 2 to G7 about 12 months ago and, like
@Inka, I find it amazingly accurate, pretty reliable (extremely reliable in relation to L2) and I make full use of the better Alerts (Dexcom call their Alarms Alerts).
I agree with the observation about needing to fully press the applicator fully onto my body, before the button releases the sensor; and I use the supplied overtake.
I apply all my G7 sensors onto my abdomen, I find that so much more convenient. This an approved zone by Dexcom and therefore is still fully compliant with the DVLA.
I know
@Inka uses the hand held Receiver (the equivalent of Libre's Reader). I recommend you ask for one of those on prescription (they are expensive) even if you intend to use the phone app. G7 is not so compatible with many phones and the app has a couple of less reliable features. So I have both my phone and the Receiver paired with each sensor. The Receiver is light, small and really convenient and very quickly provides a reading, very discreetly if discretion is needed.
The phone app is a little different to Libre's app; things in different places. Many more options for displays than the Receiver. An unusual weakness that I've encountered is that it can stop providing readings if not in mainland UK! There is something in the Dexcom software that checks if you are in a Dexcom registered country; so I've had failures from my phone in Paris, onto French German border, in Jersey and Guernsey. Once the phone app decides you are "non-compliant" it freezes and won't allow you to do anything other than reinstal the app. This is not just very inconvenient but potentially dangerous once you've become very dependent on the phone app. That geo detection bit of software kicks in if you happen to be out of a wi-fi zone and mobile roaming data not available. Eg on a ferry to Guernsey, while passing through Jersey and the ship's WiFi wasn't available and I didn't want to pay for "at sea" International Maritime roaming rates. Dexcom are adamant that this shouldn't occur and the sensor app connectivity should be independent of wi-fi or mobile data; but I've had this on all 4 overseas trips. Fortunately after the first time I made Dexcom provide me with a Receiver at their expense and thereafter I've just switched from phone to Receiver. Now I happily use either and rather than being inconvenient to carry 2 displaying items I have come to appreciate both. At home my phone sits in a central part of the house and the light weight Receiver is in a pocket - reassuring me or alerting me and the phone app when I'm back in its range picks up 8 hrs of "data while away".
Overall G7 is great. Some differences, but far from difficult to adapt to. Not perfect, but those are acceptable ( it's just frustrating that it seems neither Libre nor Dexcom can update their apps or Receivers to do simple essential things that any user would tell them it would be great if .....
Got to dash. Don't hesitate to ask more.