Masimo has announced that its MightySat fingertip pulse oximeter can now be purchased from Apple.com and select Apple retail locations in the U.S. and Canada.

masimo-mightysat
The pulse oximeter provides noninvasive measurements of oxygen saturation, pulse rate, and perfusion index, allegedly with greater accuracy than over a dozen other hospital-grade pulse oximeters.

In a study of 70 healthy volunteers during conditions of movement and low blood flow, Masimo SET was the most accurate pulse oximeter when compared to 19 other hospital-grade pulse oximeters. SpO2 accuracy was defined as being within 7% of the reference value and pulse rate accuracy as being within 10%.

The measurements and trends are sent to iPhone or iPad via Bluetooth LE and stored in the Masimo Personal Health app available in the App Store, while the data can also be shared with Apple's official Health app if permission is granted.

MightySat is $299, while a premium version that also measures respiration rate and pleth variability index is available for $399.

Top Rated Comments

keysofanxiety Avatar
121 months ago
I am still waiting for the cloaking device to appear on kickstarter...
I'm just waiting for the holodeck with Seven of Nine as DLC :D :oops:
Score: 4 Votes (Like | Disagree)
CarpalMac Avatar
121 months ago
I've always thought that Star Trek gives us the vision and human ingenuity will eventually give us the means.
I am still waiting for the cloaking device to appear on kickstarter...
Score: 3 Votes (Like | Disagree)
Scottsoapbox Avatar
121 months ago
This is $18 on Amazon if you're willing to read the numbers on the device instead of your iPhone...
Score: 2 Votes (Like | Disagree)
JeffyTheQuik Avatar
121 months ago
I'd like to see Foreflight and other aviation EFB's be able to display this info on screen. For me, having this, along with blood sugar on 2-3 second intervals, with color coding would be good for pilots.

And, if you think 7% error is bad for an Oximeter, you should see the error rates for blood glucose strips...


How accurate is your blood glucose meter?

A major study found that almost half of meters do not meet the minimum required standards:


* For blood sugars over 75 mg (4.2 mmol): Accurate within 20%. For example, if your blood sugar is 200 mg (11 mmol), the meter must read between 160 (8.8 mmol) and 240 (13.3 mmol) at least 95% of the time.
* For blood sugars under 75 mg (4.2 mmol): Accurate within 15 mg. For example, if your blood sugar is 60 mg (3.3 mmol), the meter must read between 45 (2.5 mmol) and 75 (4.2 mmol) at least 95% of the time.

There is a new proposal that would require all results to be within 15%
Yep... if you're at 75, you could be at 65 mg/dl or 90 mg/dl, but honestly, for me, they're pretty tight, not at the extremes. It's just the panic of the OMG! These can be off and KILL YOU!
Score: 2 Votes (Like | Disagree)
Keane16 Avatar
121 months ago
Uh you don't need bluetooth if your not using your phone.

This is the one used by my doctor's office:
https://www.amazon.com/AccuMed®-CMS-50DL-Oximeter-Carrying-Landyard/dp/B00MNRSWJE/ref=sr_1_3?ie=UTF8&qid=1473169572&sr=8-3&keywords=pulse+oximeter ('https://www.amazon.com/AccuMed%C2%AE-CMS-50DL-Oximeter-Carrying-Landyard/dp/B00MNRSWJE/ref=sr_1_3?ie=UTF8&qid=1473169572&sr=8-3&keywords=pulse%2Boximeter')
Thanks. Just the bog standard readers we have currently.

It would be nice to have things automatically logged to your phone/tablet/desktop with graphs created on the fly to spot trends, rather than taking manual readings. Especially if taking readings is a regular occurrence.

The Masimo is certainly pricey, but for those that need it could be worth it.
Score: 1 Votes (Like | Disagree)
smithrh Avatar
121 months ago
The Apple Watch already has a pulse oximeter, but it's not enabled, likely because of the huge delay/effort needed for FDA approval.

https://9to5mac.com/2015/04/24/apple-watch-blood-oxygen/

The FDA's not wrong to test and regulate vital medical devices, and Apple certainly could not delay EVERY Apple Watch generation over that one feature. But it's a shame it can't happen quicker.
Top of the wrist is not a great place for gathering SpO2 data through reflectance, which I suspect Apple found out. Yes, it appears that there are some extra LEDs and sensors in there, but that alone doesn't make a pulse oximeter.

So, I wouldn't jump on the FDA. Nor is the FDA approval process all that horrible.

Source: I worked on SpO2 devices when they were first coming out, participated in FDA data collection and clinicals. There's a reason why the fingertip sensors are still dominant - they work.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
iOS 26

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by
Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...