AKTIIA 24/7 Blood Pressure Monitor, Black

I had read mixed reviews of the device, but wanted to check it for myself. Sometimes it’s the case people may not have followed instructions properly etc. I followed them fastidiously. I have a high performance standard electronic BP monitor already which I know to be accurate against readings made by cardiologist. I also have a cheap wrist one too. Ran the Aktiia for a day and was shocked at how low it was reading my measurements to be. As someone being treated for high BP and frequently doing readings, I know broadly my patterns. This was giving pretty different readings. I pursued it for another day thinking that perhaps there was a small chance Aktiia was more representative as it was not subject to a white coat effect which was possibly happening whenever I used the regular cuff. After the second night it was recording BPs that would actually be dangerously low. I was highly skeptical of the accuracy now. By the evening I decided to run an experiment due to totally uncredible data. I sat kstill with Aktiia on and also my regular cuff on the other arm. Waited until I saw the Aktiia activate (you can see a small green glow) and then after it took its reading I immediately activated the regular cuff. The differences in reading for the exact same time were staggering: Aktiia registered 129/80 (pulse 66). The regular cuff registered 154/94 (pulse 65). Clearly this is a statistically very significant difference. I then used my cheap wrist cuff as a third comparison. It registered 153/95 (pulse 66.). As you can see, the two ‘normal’ blood pressure monitors had high consistency with each other, effectively giving the same reading as each other. They also provided readings that have been more consistent with my known pattern. The readings they gave illustrate significant clinical hypertension. The Aktiia in contrast, under the same conditions provided a reading that would suggest minimal to no hypertension. Other results it has produced over the previous two days follow the same pattern as above, although slightly less markedly. This product is dangerously inaccurate. I am staggered at how it’s ever achieved any clinical approvals. In my opinion, and from my experience of it, it should be immediately withdrawn from market for its complete inaccuracy that could severely place patients health (and lives) at risk through completely false and inaccurate readings. It’s not even toy/novelty grade as there is no relation between the data it’s collected of mind and actual real data by two validated devices which are showing consistency with each other. I should add, there is virtually no way to speak to a human in the company - just an AI chatbot. When you persevere with this for a long time it eventually lets you send their staff a message, to which you’re told a reply will be sent to you within 3 working days. Mine still hasn’t arrived - but nothing they can say would make me want to keep this device. It’s worse than useless. I’m my experience, it is dangerous. I have just actioned an Amazon return and would urge others not to go anywhere near this.

Easy to set up and works well. I barely notice the bracelet on my wrist and I'm getting 20-25 readings a day, so a decent trend of what is happening to my blood pressure through the day.

not most precise but still useit, more important to keep an eye on measurements and see if they trend up or down, as they are relative to you.however with Aktiia with no subscription and all the features, this is now Hilo and you have to pay for the features (so giving 3star not 4) or go on free subscription which only shows 7 days history. so less usefull unless you pay the extra for what used to be free.only additional thing is sync with apple health, but you used to be able to use bpExtract app to do this previously.

Had it for about a week and using in conjunction with a new, well known branded upper-arm monitor. It works by taking an initial reading from the supplied arm cuff then the bracelet monitors the artery expansion and contraction in the lower arm, so the initial setting needs to be accurate as the measurements are relative. The upper arm measurements of the cuff was reading my Systolic slightly higher than the other one (155 rather than 140) but the Diastolic were both the same; lower 90's. I have a reasonably large wrist and wear it on the last hole, just above the wrist bone so it's not too tight but can't spin around.I get regular readings, both day and night and battery appears to last for a week - but as it's new, I'm syncing it quite regularly. It's nice to have something that works continuously without you have to take regular measurements.

It's a lot of cash to part with, number one. The set up process was straight forward enough and the phone app seemed clear and user friendly.My gripes:1.Readings are CONSISTENTLY elevated. I use a regular cuff to measure my BP, using approved cuffs from AND and OMRON. These are consistent and Aktiia is not. (Cuff readings are taken with all prep protocols in place.) Aktiia readings always record higher values.2. Readings are haphazard and routinely miss out the night. Sometimes parts of the day. It would be far more helpful and accurate for readings to be taken at 10 minute intervals to achieve a broader average (as some non Aktiia models already provide).3. Eventually the wrist device failed to connect to the app or be updated by the cuff. Thereafter it provided no readings whatsoever. Clearly a significant failure.I hoped this would be a helpful addition to manage my health but I have to say it is disappointing and an expensive error on my part. Fortunately I was able to return the device and receive a full refund.