I WORE BOTH!
And finger sticking to compare.
Dexcom 6 win but by a smaller margin than I thought1
I have been wearing a Libre Sensor for a year now and decided to switch to the Dexcom because it is supposed to be more accurate and has the alarms. I started the Dexcom 3 days before the Libre sensor wore out to be able to compare the two.
- I thought the Libre sensor popped off easy if it got hit wrong, the Dexcom started coming off with my first shower the first night I was wearing it. I am allergic to so many adhesives but can handle Elmers glue which (wears off fast) so I have put that all around it and have wrapped my arm in an ace bandage, They are sending me free over patches to help keep them on. I will have to try the Skin Tac to see if I can use it.
Note, the the overpatch was as bad staying on as the sensor adhesive. Skin Tac worked great.
- I love the constant flow of the Dexcom without waving the reader under it.
- I hate the need to keep the Dexcom reader within 20 feet of me to have a reading, If I leave range I have to wait to get a reading.
- I have graphs on both, I have arrows pointing trends on both
- Libre actually catches changes faster, my numbers changed faster with the Libre sensor, is it the 5 mintues delay of readings with the Dexcom? It might be that, no biggy on this though.
- The Dexcom has alarms Yea, Uh wait annoying lol!!! I quickly have turned off most of the alerts and set a lot bigger range for them to go off at so they don’t. I haven’t figured this one completely out yet as there are aps that could have given me alarms for my Libre. But the Dexcom comes with them and I actually kept thinking about getting an ap for the Libre and didn’t soooo
Win if it doesn’t annoy me for Dexcom
- Because of being able to calibrate the Dexcom, it seems to be more accurate. I say seems to be because I could mostly rely on the Libre, I would finger stick and double wear the Libre Sensors the first day to find out how accurate they were. Then adjust for it. A couple of times they were up and down and those I called in for a replacement, I wanted consistency. Also if they were off by 30 points plus I would call it in as I hated to trust dosing by adding 30 points to my numbers.
But the first day the Dexcom was all over the place, higher, lower, close. With the calibrations I do seem to be keeping it mostly within 5 points now. But it is interesting as I keep reading the Libre and the Dexcom and they are steadily about 25 points apart. And that is what I was basing my dosing on the Libre. I am also finger sticking right now but the Dexcom has had, even with the calibrations, a few more off numbers. I say that as the Libre was off by more but I could count on how off it was consistently. But I will give this to the Dexcom because it is closer to the right number from day 1 with the calibration ability.
So this is a 3 to 2 win (2 ties) for Dexcom, but it didn’t win by as much as I thought it would? The grass is always greener thing?
And I have to think the Dexcom has to win because of the accuracy factor, that would be mostly because of the ability to calibrate it at the beginning. I’m not sure everyone would double wear or finger test that first day to know the off amounts by the Libre and trust it, then you have to commit to trusting it, so that really is a biggy in the long run. When I was in the endo’s office and showing them the Libre reading 99 and my Dexcom reading 126, both with a sideways arrow, it just shows what a difference it can make. Don’t dose at 99 maybe okay at 126 but I would probably give myself a unit of insulin through my pump for the 126. If I didn’t have an insulin pump I probably wouldn’t dose the 126 either.
Also I’ve had 2 alarms I appreciated, One was a high alert after I had gone to bed, it turns out that right before I changed my pod and had programmed insulin for a snack, I didn’t get that insulin. I noticed when I took off my pod there had been leakage and hadn’t thought anymore about it. So I was able to give myself a dose so I didn’t wake to having a huge number in the morning. Plus in the morning I was hanging out around 70 when I have usually started to skyrocket by then and decided to drink a little OJ. Of course about an hour later I started my skyrocket anyway!
Now why can’t it just beep once and you can stop it after that? Because when it hit that high I kept getting beeps, as my BG’s kept going up until the insulin worked. Like I said some of it is annoying!
PS A couple of added notes
The Libre numbers on the reader are bigger, black on a white background and much easier to read. I noticed this in the middle of the night when I was trying to focus and read the Dexcom’s reader.