Apple Unveils Apple Watch Series 6 With Blood Oxygen Monitoring and New Color Options

Apple today announced the new Apple Watch Series 6, sporting several new features including blood oxygen monitoring and multiple color options.

Apple delivers apple watch series 6 09152020 big
Oxygen saturation, or SpO2, represents the percentage of oxygen being carried by red blood cells from the lungs to the rest of the body, and indicates how well this oxygenated blood is being delivered throughout the body.

With Apple Watch Series 6, users can detect their blood oxygen right from their wrist, thanks to advanced algorithms that measure the color of the wearer's blood. To compensate for natural variations in the skin and improve accuracy, the Blood Oxygen sensor employs four clusters of green, red, and infrared LEDs, along with the four photodiodes on the back crystal of Apple Watch, to measure light reflected back from blood.

It's capable of taking readings manually in 15 seconds, plus it gives periodic background readings, including while the user sleeps. The new Blood O2 feature will also support research studies that explore asthma, heart failure, and flu/covid studies.

The Apple Watch Series 6 includes a new sixth-generation chip, with a dual-core processor based on Apple's A13 chip, which is 20 percent faster than the previous generation model.

"Apple Watch Series 6 completely redefines what a watch can do," said Jeff Williams, Apple's chief operating officer. "With powerful new features, including a Blood Oxygen sensor and app, Apple Watch becomes even more indispensable by providing further insight into overall well-being."

In addition, the Series 6 has a 2.5x brighter outdoor always-on display, including an always-on altimeter.

f1600189839
The always-on altimeter provides real-time elevation all day long by using a new, more power-efficient barometric altimeter, along with GPS and nearby Wi-Fi networks. This feature allows for the detection of small elevation changes above ground level, up and down to the measurement of 1 foot, and can be shown as a new watch face complication or workout metric.

Exclusive to the Series 6 is a new blue aluminum case, an updated classic gold stainless steel, and graphite stainless steel, and an Apple Watch PRODUCT(RED).

Apple watch series 6 aluminum red case 09152020 carousel
There are also new watch faces with the Series 6, including a Tachymeter, MeMoji, Stripe faces to show pride, team colors, and more.

watchOS 7 also brings sleep tracking and will also soon give users warnings for low VO2 Max levels.

Apple Watch Series 6 (GPS) starts at $399 and Apple Watch Series 6 (GPS + Cellular) starts at $499.

This story is part of our ongoing coverage of Apple's virtual "Time Flies" event today. Refresh for more details and follow our live blog.

Related Roundup: Apple Watch 11
Buyer's Guide: Apple Watch (Buy Now)

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
iOS 26

Apple Seeds iOS 26.2 and iPadOS 26.2 Release Candidates to Developers and Public Beta Testers

Wednesday December 3, 2025 10:33 am PST by
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....
Photos App Icon Liquid Glass

John Gruber Shares Scathing Commentary About Apple's Departing Software Design Chief

Thursday December 4, 2025 9:30 am PST by
In a statement shared with Bloomberg on Wednesday, Apple confirmed that its software design chief Alan Dye will be leaving. Apple said Dye will be succeeded by Stephen Lemay, who has been a software designer at the company since 1999. Meta CEO Mark Zuckerberg announced that Dye will lead a new creative studio within the company's AR/VR division Reality Labs. On his blog Daring Fireball,...
iOS 26

When Will Apple Release iOS 26.2?

Monday December 1, 2025 4:37 pm PST by
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week. Past Launch Dates Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
iphone air camera

iPhone Air's Resale Value Has Dropped Dramatically, Data Shows

Thursday December 4, 2025 5:27 am PST by
The iPhone Air has recorded the steepest early resale value drop of any iPhone model in years, with new data showing that several configurations have lost almost 50% of their value within ten weeks of launch. According to a ten-week analysis published by SellCell, Apple's latest lineup is showing a pronounced split in resale performance between the iPhone 17 models and the iPhone Air....
ive and altman

Jony Ive's OpenAI Device Barred From Using 'io' Name

Friday December 5, 2025 6:22 am PST by
A U.S. appeals court has upheld a temporary restraining order that prevents OpenAI and Jony Ive's new hardware venture from using the name "io" for products similar to those planned by AI audio startup iyO, Bloomberg Law reports. iyO sued OpenAI earlier this year after the latter announced its partnership with Ive's new firm, arguing that OpenAI's planned "io" branding was too close to its...
iPhone 17 Pro Cosmic Orange

iPhone 17 Pro Lost a Camera Feature Pro Models Have Had Since 2020

Thursday December 4, 2025 5:18 am PST by
iPhone 17 Pro models, it turns out, can't take photos in Night mode when Portrait mode is selected in the Camera app – a capability that's been available on Apple's Pro devices since the iPhone 12 Pro in 2020. If you're an iPhone 17 Pro or iPhone 17 Pro Max owner, try it for yourself: Open the Camera app with Photo selected in the carousel, then cover the rear lenses with your hand to...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....

Top Rated Comments

JDHiro Avatar
68 months ago
Love my S5, but the updates in this generation seem a bit too incremental to justify an update.
Score: 13 Votes (Like | Disagree)
badlydrawnboy Avatar
68 months ago

Perhaps I misread but what is the purpose of the O2 integration of its for studies?

what benefit does it provide to the user?
In the Covid era, it's one of the most important metrics to track. If you get Covid and your O2 sat starts dropping, you need to seek medical attention right away. It could help you to avoid a ventilator and a very bad outcome.
Score: 13 Votes (Like | Disagree)
GIZBUG Avatar
68 months ago
This promo video cracks me up. I am waiting for the machine learning voice to say "what about a battery that lasts more than a day on a single charge?" and a person saying "Oh, it doesn't do that!"
Score: 10 Votes (Like | Disagree)
benshive Avatar
68 months ago
Heart rate, ECG, VO2, and blood oxygen level along with everything else in the watch. It's really mind-blowing how much tech is packed into such a small device...
Score: 9 Votes (Like | Disagree)
TheYayAreaLiving ?️ Avatar
68 months ago
Blue is this year's color! can't wait for the iphone!
Score: 8 Votes (Like | Disagree)
QCassidy352 Avatar
68 months ago

Love my S5, but the updates in this generation seem a bit too incremental to justify an update.
Agreed. Blood oxygen, always on altimeter, brighter AOD outdoors, 20% faster. Probably not gonna notice any of that in the day to day.
Score: 8 Votes (Like | Disagree)