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 (Neutral)

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...

Top Rated Comments

bernoulli Avatar
71 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
71 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
71 months ago
Let's wait and WATCH... next week or next month
Score: 17 Votes (Like | Disagree)
nordique Avatar
71 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
71 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
71 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)