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 (Neutral)

Popular Stories

Verizon New

Verizon is Down: iPhones Show 'SOS' Mode Due to Network Outage [Resolved]

Wednesday January 14, 2026 10:18 am PST by
Verizon is experiencing a major outage across the U.S. today, with hundreds of thousands of customers reporting issues with the network on the website Downdetector. There are also complaints across Reddit and other social media platforms. iPhone users and others with Verizon service are generally unable to make phone calls, send text messages, or use data over 5G or LTE due to the outage....
Apple Creator Studio

Apple Introduces New 'Creator Studio' Bundle of Apps for $129 Per Year

Tuesday January 13, 2026 6:11 am PST by
Apple today introduced a new Apple Creator Studio bundle that offers access to six creative apps, as well as exclusive AI features and content, as part of a single subscription. In the U.S., pricing is set at $12.99 per month or $129 per year. Here are the six apps included with an Apple Creator Studio subscription:Final Cut Pro on the Mac and iPad Logic Pro on the Mac and iPad Pixelmator...
iOS 26

Here's What's New in iOS 26.3 So Far

Monday January 12, 2026 1:15 pm PST by
Apple today seeded the second beta of iOS 26.3, nearly a month after the first beta. So far, the update includes a couple of new features for iPhones. iOS 15.3 through iOS 18.3 were all released in late January over the years, so it is thereby likely that iOS 26.3 will be released towards the end of this month as well. The update is compatible with the iPhone 11 series and newer. Below,...
maxresdefault

Apple Confirms Google Gemini Will Power Next-Generation Siri This Year

Monday January 12, 2026 7:38 am PST by
In a statement shared with CNBC today, Apple confirmed that Google Gemini will power the next-generation version of Siri that is slated to launch later this year. Subscribe to the MacRumors YouTube channel for more videos. "After careful evaluation, we determined that Google's technology provides the most capable foundation for Apple Foundation Models and we're excited about the innovative...
airpods pro 3 design

Apple Releases New AirPods Pro 3 Firmware Update

Tuesday January 13, 2026 11:29 am PST by
Apple today released a firmware update for the AirPods Pro 3. The latest firmware has a version number of 8B34, up from the previous version 8B30. Apple has a support document for AirPods firmware updates, and it indicates that the 8B34 update contains unspecified "bug fixes and other improvements." No other AirPods models received firmware updates today. How to install AirPods Pro...
Low Cost MacBook Feature A18 Pro

Apple Is Expected to Launch These Four MacBooks in 2026

Friday January 9, 2026 8:17 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Subscribe to the MacRumors YouTube channel for more videos. ...
maxresdefault

Google Gemini-Powered Siri Will Reportedly Have These 7 New Features

Tuesday January 13, 2026 7:52 pm PST by
Apple and Google this week announced that Gemini will help power a more personalized Siri, and The Information has provided more details. Subscribe to the MacRumors YouTube channel for more videos. As soon as this spring, the report said the revamped version of Siri will be able to… Answer more factual/world knowledge questions in a conversational manner Tell more stories Provide...
fcp pcp iwork creator studio

Some Apple Apps Will No Longer Receive Every New Feature Without a Subscription

Tuesday January 13, 2026 10:50 am PST by
If you are not interested in subscribing to the new Apple Creator Studio bundle introduced today, you will officially start to miss out on some new features. Apple said some "exciting new intelligent features and premium content" in Pixelmator Pro, Keynote, Numbers, Pages, and Freeform will only be accessible with a Creator Studio subscription. In the U.S., a subscription costs $12.99 per...
iPhone Top Left Hole Punch Face ID Feature Purple

New Leak Reveals iPhone 18 Pro Display Sizes, Under-Screen Face ID, and More

Wednesday January 14, 2026 7:09 am PST by
While the iPhone 18 Pro models are still around nine months away, a leaker has shared some alleged details about the devices. In a post on Chinese social media platform Weibo this week, the account Digital Chat Station said the iPhone 18 Pro and iPhone 18 Pro Max will have the same 6.3-inch and 6.9-inch display sizes as the iPhone 17 Pro and iPhone 17 Pro Max. Consistent with previous...
iPhone Top Left Hole Punch Face ID Feature Purple

10 Reasons to Wait for This Year's iPhone 18 Pro

Thursday January 8, 2026 2:56 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...

Top Rated Comments

JDHiro Avatar
70 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
70 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
70 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
70 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
70 months ago
Blue is this year's color! can't wait for the iphone!
Score: 8 Votes (Like | Disagree)
QCassidy352 Avatar
70 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)