I wear a Dexcom Platinum constant glucose monitor.
It inserts a thread-like needle that reports my blood sugar every five minutes. I have to use a strip once a day to calibrate.
Everything costs a ton of money. The replaceable sensors cost a fortune, but I wear them for two weeks vice one as recommended by Dexcom (largely to make $$$). But my insurance covers them where they don't cover test strips!
1. is the replaceable sensor, 2 is the transmitter that sits in the sensor when attached to you, and 3 is the hand-held control unit.
If you bought this on your own it would cost about $3000 a year.
Anyway, ask your Endo if it would be a good fit for you.