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like Omron Evolve ($75)A blood pressure cuff has electronics built into the cuff itself. This can make it a bit awkward to use, especially if you don’t have a particularly large arm. Aktiia also instructs you to use the cuff on the opposite arm from which you wear the belt. You also cannot use third-party BPMs to calibrate the cuff, to ensure Aktiia’s accuracy. (It was Hilo It was approved by the US Food and Drug Administration (FDA) in 2025has been tested and reviewed in several Clinical studies For several years, it meets the ISO 81060-2 standard for verifying the accuracy of blood pressure measuring devices.)
A regular BPM cuff measures your blood pressure, or how hard your blood is pressing against the walls of your blood vessels, by inflating the cuff to temporarily stop blood flow. Your doctor, or now a digital oscilloscope, listens to when the blood stops and starts flowing in your veins; The highest measurement is systolic blood pressure, and the lowest measurement is diastolic blood pressure.
Instead of applying pressure to your blood vessels, the Hilo Bar uses the same photoplethysmography (PPG) optical sensors already found in most fitness trackers to analyze the pulsing shape of the arteries under your skin. It then uses its own algorithm to measure your blood pressure several times a day when you are at rest.
Night measurements
ScreenshotHello via Adrienne So
Continuous monitoring of blood pressure, especially while walking, sleeping, or lying down, is the gold standard for evaluating cardiovascular health. If your blood pressure does not drop while you sleep, this is a strong indicator that you may have cardiovascular disease. Unfortunately, it’s really hard to relax if something is repeatedly pressing your arm while you’re trying to sleep.
If you don’t already know you have high blood pressure, it’s not something many of us would think to check. I have excellent blood pressure whenever I go to the doctor’s office, so why would I ask if I can take my blood pressure while lying down or overnight?
Aktiia Hilo is very helpful because I can see my blood pressure drop while I sleep. It also takes average measurements of your blood pressure throughout the day, rather than doing a spot check at intervals. Some people, like my husband, have low blood pressure no matter what they do. My condition can go up if I read the wrong email, if I’m a little dehydrated, or if my ankles are crossed when I measure it.
I’ve tested this with Withings BBM Vision I found that the results were identical; However, it’s nice to be able to measure without taking 30 minutes of your day to sit down and get ready.
Now that the Apple Watch has improved battery life and you can wear it 24 hours a day, it can also monitor your blood pressure at night. (the New Whoop band It also claims to offer high blood pressure notifications, but it’s worth noting that Whoop hasn’t tried to erase the feature With the FDA.) But the Apple Watch can only scan for patterns within a 30-day period. It does not provide consistent systolic and diastolic pressure readings that your doctor can check.