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A cuffless wrist band for blood pressure readings, sold as a $239.98 bundle with the first year of its required subscription already inside the price.
Price: $239.98 · Verified: 2026-08-14
A cuffless wrist band for blood pressure readings, sold as a $239.98 bundle with the first year of its required subscription already inside the price.
Hilo is the former Aktiia, the Swiss company whose US terms name Aktiia SA as the developer, and the Core is a three-part bundle rather than a single device: a 0.6 oz optical wrist band, an upper-arm reference cuff that Hilo describes as FDA-cleared, and a subscription app. Per Hilo, the band reads optical signals at the wrist while you are still and at rest, and the cuff sets the baseline at onboarding and again every 30 days. The band is IP68 rated, runs up to 15 days per charge, recharges in about 90 minutes, and connects over Bluetooth Low Energy to iOS 16 or Android 8 and newer. The pod measures 0.33 x 0.63 x 1.34 in, straps come in S/M for 5.2 to 7.8 in wrists and L/XL for 7.5 to 10 in, and the cuff fits 8.7 to 16.5 in upper arms. Hilo's homepage figure is up to 35 readings a day.
Read the $239.98 as a first-year price, not a hardware price. Hilo's own on-page breakdown splits it into $89.99 for the band and calibration cuff plus $149.99 for 12 months of subscription, and the renewal line on the same page reads $149.00/year, or $12.45/month, after that. The subscription is a hard gate: Hilo states an active Core subscription is required to use the system, and that cancelling leaves 30 days of limited access before new readings stop, though the band stays yours. Two more things to weigh. Hilo's site-wide footer states that Core is a wellness product and not a medical device, and that the clinical evidence the brand cites belongs to a product using the same underlying technology rather than to Core itself, so we do not attribute that evidence to this bundle. And the product page badge says 2-year warranty while Hilo's US Terms of Service state one year, so one year is the figure the US contract actually supports.
This suits a buyer who wants a wrist-worn log of blood pressure readings and treats $149.00 a year as the ongoing cost of keeping it working. It does not suit anyone who wants one-time hardware. Hilo also publishes broad exclusions: do not use it if you are pregnant or may be pregnant, if you have an implanted electronic device such as a pacemaker or defibrillator, or if the skin at the wear site is damaged or irritated. Returns run 14 days from delivery, you pay return shipping, and a broken packaging seal voids the return. The US store is new enough that its contact and legal pages still publish a 555 placeholder phone number and every strap accessory is out of stock, so re-check price and availability before you buy.
Buyers who want a cuffless, wrist-worn log of blood pressure readings from a Swiss brand with a 2018 lineage, and who accept $149.00 a year as the ongoing cost of keeping the device working.
You want one-time hardware with no recurring fee, you are pregnant or have an implanted electronic device such as a pacemaker or defibrillator (Hilo lists both as exclusions), or you need something Hilo calls medical; its own site-wide footer states Core is a wellness product and not a medical device.
Specifications
Where this fits
Hilo Core cross-shops across several editorial surfaces on this site: the full brand catalog, the price band it qualifies for and the in-depth guides for its category.
Hilo Core - buyer FAQ
Is the Hilo Core FDA cleared?
Hilo states that in the United States the Core band is a general wellness product and is not FDA cleared as a medical device. The upper-arm cuff included in the box is FDA cleared and is used for reference readings. Hilo says that cuff was validated in a peer-reviewed study under the ANSI/AAMI/ISO 81060-2:2013 protocol.
Does the Hilo Core require a subscription?
Yes. Hilo lists an active Hilo Core membership as required to use the system, and a 12 month membership is bundled with the hardware at purchase. It renews annually after that. The membership covers app features, long-term pattern summaries, software updates and customer support. The hardware itself carries a 2 year warranty.
How do you calibrate the Hilo Core, and how often?
Hilo's setup asks for one app-guided cuff session on each of four different days, and each session is three consecutive inflations. Hilo advises resting for five minutes before measuring. After setup, the app prompts a refresh roughly every 30 days. The band then attempts readings during low-motion moments through the day.
Will the Hilo Core band fit my wrist?
Two strap sizes are offered. The S/M strap is 10 inches long and fits wrists of 5.2 to 7.8 inches, and the L/XL strap is 12.4 inches long and fits 7.5 to 10 inches. Both are 0.55 inches wide. The included upper-arm cuff fits arms of 8.7 to 16.5 inches.
How long does the Hilo Core battery last, and can you shower with it?
Hilo lists up to 15 days per charge, with a full charge in approximately 90 minutes using the supplied charging pod and cable. The band is IP68 rated and Hilo says it is suitable for washing hands, showering and swimming. Band and pod together weigh 0.6 ounces, and the pod is 1.34 inches long.