Hi,
@Vidar , Nemaura Medical have recently had their SugarBEAT product CE marked for sale in Europe, they say will launch in the UK in 2019, but the company has been promising it for years, so who knows when. Getting CE marked is sometimes a clue that it's near to market as there's little point in getting it checked while still in development. Their press release says it will be comparable in price to bg testing strips, but, again, it's a case of wait and see.
It's a daily patch stuck on your skin and an electric current sucks glucose out of interstitial fluid under the skin and measures that every 5 mins so you get a conntinuous trace, which is much handier for tracking trends instead of the occasional "spot-check" bg reading.
https://nemauramedical.com/sugarbeat/
However, their test results put accuracy below those of traditional cgm, so no-one really knows how it will pan out in the real world.
Unfortunately, non-invasive testing has had a long and unsuccessful history with plenty of contenders which have tried, failed, been repackaged, tried and failed again.
It's covered in detail in this book length pdf if you're interested in the subject:
https://www.google.com/url?sa=t&sou...FjAAegQIAxAB&usg=AOvVaw1hKyO_nOrqAg6KgGn57hf0