Dexcom only makes CGMs, not pumps, so they've partnered with Tandem.

Dexcom and Tandem delivered the auto bolus correction doses years ago. Surprised Medtronic hasn't caught up yet.

Edit: also, the fact that you're so successful with Medtronic makes me think that you'd handle the switch better than most. If you're a good shot with iron sights, you'll be an even better shot with a scope.

Which CGM are you on? The Dexcom G6 not needing calibration has been a dream.

I have one of those, and it's great, but it's still not quite "there yet". The corrective algorithm takes extreme precautions against dropping your blood sugar below normal levels, which is understandable, but it means that it's sluggish at dealing with high blood sugar.

But that's the "administering directly" part. The tech for "real-time monitoring" is pretty mature at this point, but it still requires you to inject something under your skin and wear a patch with a Bluetooth transmitter on it. It expires every 10 days and has a 2-hour warmup period where you also can't get readings. In terms of benefit vs. inconvenience, it's still well worth it, but a noninvasive means of measuring blood sugar would still be an improvement.