I bought this watch 22/08/22 with the blood glucose function of special interest as I am a type 1 diabetic. THIS FUNCTION IS NOT ACCURATE OR RELIABLE THEREFORE OF NO USE TO A DIABETIC.
I contacted Aliexpress. I was put through to the Ruijie shop and was told that new software is due that would sort this problem out. I would be contacted when the release was available.
This has never happened and I have not received any answers to my communications.

Conclusion:

Product: RUBBISH
Customer service: PATHETIC
 
As a previous buyer said  - DONT WASTE YOUR MONEY

Beware of this watch, don't buy it, it is fake, a toy, it shows repeating patterns, pre programmed blood glucose patterns that appear to normal healthy people as fitting normal daily schedule, but if one doesn't follow or eat at the same time the hoax of this fake watch will be seen and understood after 2-3 days.
there is no blood glucose measurement taking place at all, it is all fake to look like it is,
the values appear in almost identical graph day after day. they don't match, not even closely, a real glucometer, this is a hoax running on aliexpress and poor diabetic sick customers are falling into this trap.
it is not worth even 5$ as it is not delivering any of the promised other features.
blood pressure values are also automated and follow similar fake patterns based on a "private" input from the customer/user in the app. after it will just follow tailored pattern with predicted deviation which will fit to some users but will always turn wrong when compared with real medical devices. i sum up., this is a hoax. a toy, a fake watch. it is a scam. don't buy it, and don't try it, you will not see your money back.
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HI, congratulations, my question about types Of sugar  measured is fast blood sugar or random blood sugar or postprandial sugar, which unit measured,