Apple Watch Series 6 Rumors: Blood Oxygen Tracking, Performance Improvements, Faster WiFi and More

Alongside new iPhones each year, Apple unveils an updated version of the Apple Watch, introducing new features and improving on existing functionality. We're expecting the sixth-generation Apple Watch in 2020, and we could perhaps see some useful new health tracking functionality.


The most notable new feature we could see in Apple Watch Series 6 models is blood oxygen monitoring, which would allow the Apple Watch to detect and monitor the oxygen levels in the blood. Normal blood oxygen is between 95 and 100 percent, and when blood oxygen levels drop, it can be indicative of a health problem that needs immediate medical attention.

Code in iOS 14 suggests that Apple will provide notifications when blood oxygen levels drop below a healthy threshold, allowing Apple Watch owners to get quick help when affected by a respiratory or cardiac problem. Blood oxygen monitoring would be a useful feature amid the ongoing pandemic, as the virus can cause oxygen levels to drop, and people experiencing reduced oxygen intake need emergency help.

Apple Watch Blood Oxygen
We're expecting some new hardware in the Apple Watch Series 6, including a new system-on-a-chip for performance improvements. There may be an improvement in water resistance and improved wireless transmission for faster WiFi and cellular speeds.

We've seen a battery allegedly for the Apple Watch that features a capacity of 303.8mAh, which is not too far off from the 296mAh battery in the Series 5 models, so we're not expecting significant gains in battery life other than what comes through software improvements.

There have been some murky rumors about mental health capabilities that would let the Apple Watch Series 6 detect panic attacks or high levels of stress and provide breathing exercises to calm people down.

If this feature exists, it could rely on heart rate data or it could take into account blood oxygen levels as well as breathing rate to make determinations about stress levels.

New Apple Watch models have always released alongside iPhones in the past, but the 2020 launch dates are unclear given the iPhone delays. Leaker Jon Prosser, who has something of a mixed track record, believes Apple will introduce the Apple Watch via press release next week, well ahead of when new iPhones launch.

Since Apple has never decoupled Apple Watch launches from ‌iPhone‌ launches, it's not clear if this information is accurate, but we don't have long to wait to find out. If an Apple Watch launch doesn't happen next week, Japanese site Mac Otakara believes the Series 6 will be unveiled at an October event alongside the ‌iPhone‌ 12 models.

Apple in late August registered eight new Apple Watch models with the Eurasian Economic Commission, a filing that's required ahead of any new product release. Oftentimes these filings herald an upcoming product launch, so there are definitely new models on the horizon.

For more on what to expect from the Apple Watch Series 6, make sure to check out our roundup.

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

Popular Stories

2024 iPhone Boxes Feature

Apple Adjusts Trade-In Values for iPhones, iPads, Macs, and More

Thursday November 6, 2025 11:12 am PST by
Apple today updated its trade-in values for select iPhone, iPad, Mac, and Apple Watch models. Trade-ins can be completed on Apple's website, or at an Apple Store. The charts below provide an overview of Apple's current and previous trade-in values in the U.S., according to its website. Maximum values for most devices either decreased or saw no change, but the iPad Air received a slight bump. ...
Liquid Glass General Feature

Apple Shares Liquid Glass Design Gallery

Thursday November 6, 2025 2:45 pm PST by
Apple is promoting the new Liquid Glass design in iOS 26, showing off the ways that third-party developers are embracing the aesthetic in their apps. On its developer website, Apple is featuring a visual gallery that demonstrates how "teams of all sizes" are creating Liquid Glass experiences. The gallery features examples of Liquid Glass in apps for iPhone, iPad, Apple Watch, and Mac. Apple...
airtag purple

Apple's Website Lists AirTag 4-Pack at Shockingly Low Price [Updated]

Friday November 7, 2025 6:40 am PST by
Apple's online store in the U.S. is suddenly offering a pack of four AirTags for just $29, which is the same price as a single AirTag. This is likely a pricing error, and it is unclear if orders will be fulfilled. Apple has not discounted the AirTag four-pack in any other countries that we checked. Delivery estimates are already pushing into late November to early December, suggesting...
iOS 26

iOS 26.1 Available Now With These 8 New Features

Monday November 3, 2025 5:54 am PST by
Following more than a month of beta testing, Apple released iOS 26.1 on Monday, November 3. The update includes a handful of new features and changes, including the ability to adjust the look of Liquid Glass and more. Below, we outline iOS 26.1's key new features. Liquid Glass Toggle iOS 26.1 lets you choose your preferred look for Liquid Glass. In the Settings app, under Display...
ikea smart home devices

IKEA Debuts 21 HomeKit-Compatible Smart Bulbs, Sensors, and Controls

Thursday November 6, 2025 4:08 pm PST by
IKEA today announced the upcoming launch of 21 new Matter-compatible smart home products that will be able to interface with HomeKit and the Apple Home app. There are sensors, lights, and control options, all of which will be reasonably priced. Some of the products are new, while some are updates to existing lines that IKEA previously offered. There are a series of new smart bulbs that are...
Early Black Friday Deals 1

The Best Early Black Friday Apple Deals on MacBook, Apple Watch, iPad, and More

Saturday November 8, 2025 6:16 am PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Apple fitness plus feature

Future of Apple Fitness+ 'Under Review'

Sunday November 9, 2025 5:30 am PST by
The future of Apple Fitness+ is "under review" amid a reorganization of the service, according to Bloomberg's Mark Gurman. In the latest edition of his "Power On" newsletter, Gurman said that Apple Fitness+ remains one of the company's "weakest digital offerings." The service apparently suffers from high churn and little revenue. Nevertheless, Fitness+ has a small, loyal fanbase that...
maxresdefault

In-Depth iPhone Battery Experiment Pits Slow Charging Against Fast Charging

Friday November 7, 2025 1:19 pm PST by
HTX Studio this week shared the results from a six-month battery test that compared how fast charging and slow charging can affect battery life over time. Using six iPhone 12 models, the channel set up a system to drain the batteries from five percent and charge them to 100 percent over and over again. Three were fast charged, and three were slow charged. Another set of iPhones underwent...
apple watch se 3 always on

Apple to Remove iPhone-Apple Watch Wi-Fi Sync in EU With iOS 26.2

Thursday November 6, 2025 4:37 am PST by
Apple in iOS 26.2 will disable automatic Wi-Fi network syncing between iPhone and Apple Watch in the European Union to comply with the bloc's regulations, suggests a new report. Normally, when an iPhone connects to a new Wi-Fi network, it automatically shares the network credentials with the paired Apple Watch. This allows the watch to connect to the same network independently – for...

Top Rated Comments

bernoulli Avatar
68 months ago

O2 saturation would come in handy to roughly gauge fitness and lung performance over extended exercising. It would be a nice, good-to-know, feature.
As an anaesthesiologist, I would have to disagree with that statement. Oxygen saturation does not gauge fitness or lung performance. Well, not in the way you are thinking. If your oxygen saturation is below 95% regardless of any setting may indicate there could potentially be pathological VQ mismatch.

To gauge performance then you would be looking at more like vo2 max which could actually be estimated using the heart rate ratio without any need of pulse oximetry;
VO2 max ~ hr max/hr rest x 15.3 mls/kg/min
There are also other ways of estimating VO2 max.

Other things one could look at are things like aerobic or anaerobic threshold.
Score: 23 Votes (Like | Disagree)
jav6454 Avatar
68 months ago
O2 saturation would come in handy to roughly gauge fitness and lung performance over extended exercising. It would be a nice, good-to-know, feature.
Score: 18 Votes (Like | Disagree)
im2fast4u Avatar
68 months ago
Let's wait and WATCH... next week or next month
Score: 17 Votes (Like | Disagree)
nordique Avatar
68 months ago
An absolutely game changing feature would be non invasive glucose monitoring

Relatively speaking, oxygen monitoring is a useless feature. It’s like a nice add on, but nothing integral

I’d say the hand washing and breathing features have more practical and functional use than the oxygen sat.


Are you a med student, RN, MD, or PA?
MD.
Score: 15 Votes (Like | Disagree)
jlocker Avatar
68 months ago
Can not believe that my Apple Watch version 1 is still running from the original launch of the watches. I think it is time to upgrade :)
Score: 14 Votes (Like | Disagree)
Apple_Robert Avatar
68 months ago

An absolutely game changing feature would be non invasive glucose monitoring

Relatively speaking, oxygen monitoring is a useless feature. It’s like a nice add on, but nothing integral

I’d say the hand washing and breathing features have more practical and functional use than the oxygen sat.



MD.
I appreciate you taking the time to inform us on the merits (or rather lack thereof) that many of us have misconstrued. I hope you will continue to do so as time permits.
Score: 11 Votes (Like | Disagree)