The app is great, although a bit confusing in places. Ease of application of the monitor is great. The accuracy is terrible. As soon as the initialization period was over, the monitor agreed with my manual monitor exactly. From that point on, it just got worse and worse, at one point the difference between the manual test and the monitor was 47 points (no spikes, no food, no sugar, no insulin, just baseline reading). The app will conduct a test, apparently, when this happens. But to do so, it requires "three sets of readings". This isn't clear at all...three sets of HOW MANY readings? Three sets of 1? of 3? 5? So I did 3 sets of 3, each reading 30 minutes apart, and logged them in the BG file. Then tried to run the test. And got " Sorry, no BG(AI) data has been detected for the requested device. Click the button below to complete three sets of 30-minute intervals". I used YuWell (5th generation) prior to this, had zero problems and it was very accurate. I will go back to YuWell. [UPDATE: DEC 8, 2025: Toward the end of the first monitor's life, it did improve on accuracy. I applied the second monitor a week ago, and it seems to be holding accuracy within +-5 points of my manual monitor. I have a YuWell as my next monitor, but I will probably try Ottai again when the YuWell expires.]
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Ottai is a high-end medical device R&D company dedicated to transforming chronic disease management through advanced biosensing and deep learning technologies. Since 2019, Ottai has been continuously providing user-friendly, reliable, and accessible solutions for glucose monitoring, positioning itself as a leader in diabetes technology.
