There are several problems: updates aren't really continuous, they're based on readings from interstitial fluid rather than blood, etc. but as far as I'm concerned the biggest problem is that they require an implant, a device that sits just under the skin and measures glucose levels in fluid.
I really want this sort of functionality in a convergent device; can you imagine your cell phone telling you your overall health level? Stress level? Fatigue level? Now if there were just a way to measure the contents of body fluids without needles or implants.
Thanks to Bernard Farrell here's a link to the Team Type 1 page.
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The GlucoWatch of several years ago used a low electrical current to 'pull' blood glucose up for measurement. But it was bulky and (I hear) not very reliable.
The implant isn't all that bad and getting a reading every 1 or 5 minutes sure beats standard blood glucose monitors. On days where I used these a lot I might take 10 fingersticks. Whereas my Dexcom system gives me about 280 readings a day. The most important aspect of this is knowing which direction the readings are going in and how fast they're changing.
FYI, team type 1's web page may point to the article at some stage.
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