My costs for dexcom are planned as:
G4 + xdrip
260 1 G4 Transmitter
40 android phone
871.25 17 sensors (freepost)
Libre costs are
48.9 1 reader
1319.76 26 sensors delivered in 2s
So the costs are similar if using dexcom not as advised, and libre as advised, libre is cheaper obviously if using only occasionally. Obviously the difference is the libre is guaranteed to last a year if you bought 26 sensors over the year, whereas a dexcom transmitter isnt guaranteed to last a year and 17 sensors isnt guaranteed to last a year either. I'm budgeting for a maximum of one sensor every 3 weeks, and hoping i get the year from the transmitter as others report.
Main findings would be
- Dexcom was very accurate, though calibrating twice a day was annoying. prefer libres no calibration.
- Dexcom was annoying when giving a false compression low at night and waking me up. Also when under the low alert level but stable the alarm was annoying, as i'd set it to 4.5 due to the lag. If 4.4 and dropping it meant i caught lows in high 3s. If 4.4 and stable the alarm was annoying as i was happy with being there.
- Dexcom gave more confidence to forget about diabetes - if i felt fine and it hadnt vibrated i knew i was most likely fine. With libre i had to scan a lot at common hypo times etc to see what was going on.
- I don't think dexcom lowered my high bgs as i didnt react to the high or rising fast alerts and often switched it off. I usually only correct with meals. I probably need to learn how ou should act on these to get the most benefit from it.
- Dexcom reduced the amount of low bgs i had. Other than 2 lows in 3 weeks of 3.2 and 3.1 (walking dog and didnt notice vibrations), the only other low bgs i had were 3.8/3.9, as i had the low alarm set at 4.5 usually.
- I drove 2000 miles over my 2 week holiday without being stopped by a single low blood sugar. I felt more confident when driving long motorway journeys. I wasnt delayed from going to any of my usual activities by a low blood sugar as they just didnt happen.
- Libre is much more discreet! There were some noisy dexcom in quiet places awkward moments as even the vibrate only mode is really loud!
So there it is, i'll be trying out dexcom a while longer once i have purchased a transmitter, so long as i can buy it alone without a receiver. I don't think it reduced my highs but i didnt use it to its maximum for that as i'm just not sure how or when to correct between meals. The main benefit i has was improved confidence and knowing about lows before they happen. I found i did less just in case snacking and spent more time in the 4s where i would normally eat because of exercise or whatever, i could just eat if it warned me bg was dropping.