Apple Watch Series 6 Rumors: Blood Oxygen Tracking, Performance Improvements, Faster WiFi and More - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

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.

Watch on YouTube

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 12
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: Apple Watch

Popular Stories

apple watch s12 ultra 4

Apple Watch Series 12, Ultra 4 Owners Report Skin Irritation

Wednesday October 7, 2026 12:02 pm PDT by
Some Apple Watch Series 12 and Ultra 4 owners have experienced unexpected skin irritation with the new models, according to reports on the MacRumors forums and Reddit. Affected users complain of a burning sensation and redness under the sensor area. The Apple Watch Series 12 and Ultra 4 measure heart rate every five seconds, and some people have wondered if that's the cause of the skin...
southern straps 3 1

MacRumors Giveaway: Win an Apple Watch Series 12 and a Nylon Band From Southern Straps

Friday October 9, 2026 10:20 am PDT by
For this week's giveaway, we've teamed up with Southern Straps to offer MacRumors readers a chance to win an Apple Watch Series 12 and a nylon band from Southern Straps to go along with it. Southern Straps is a California-based company that has been making high-quality bands for the Apple Watch since the device first launched in 2015, and the company's selection of bands offer a an...
apple watch series 6 blood oxygen monitoring 1

Apple's $634 Million Apple Watch Patent Bill Just Got Even Bigger

Tuesday October 6, 2026 6:09 am PDT by
Apple's $634 million patent loss to medical technology company Masimo has just gotten even bigger, after a federal judge ordered Apple to pay an additional $184 million in interest on what it owes (via Bloomberg Law). The ruling takes Apple's bill to around $818 million, but that doesn't include any post-judgment interest continuing to accrue until the judgment is paid. Judge James Selna ...

Top Rated Comments

81 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
81 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)
81 months ago
Let's wait and WATCH... next week or next month
Score: 17 Votes (Like | Disagree)
81 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
81 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
81 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)
Latest Stories
Nearly Every M5 MacBook Air Now $200 Off on Amazon
Nearly Every M5 MacBook Air Now $200 Off on Amazon
18 minutes ago
Apple's HomeView Ships With Six-Month-Old Software
Apple's HomeView Ships With Six-Month-Old Software
2 hours ago
Three New iPads Rumored to Launch in First Half of 2027
Three New iPads Rumored to Launch in First Half of 2027
2 hours ago
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
6 hours ago
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
1 day ago
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
1 day ago
Here's a New Tour of Apple's HomeView Software
Here's a New Tour of Apple's HomeView Software
1 day ago
Apple Reveals New iPad Mini's Battery Capacity
Apple Reveals New iPad Mini's Battery Capacity
1 day ago
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
1 day ago
'Pluribus' Season 2 Reportedly Starts Production Today
'Pluribus' Season 2 Reportedly Starts Production Today
1 day ago
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
1 day ago
HomeView Software 27.2: Wallpapers, Control Center, and More
HomeView Software 27.2: Wallpapers, Control Center, and More
2 days ago
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
2 days ago
iOS 27.3 Will Enable These Apple Intelligence Features in China
iOS 27.3 Will Enable These Apple Intelligence Features in China
2 days ago
Apple Says iOS 27.3 Beta Coming Next Week
Apple Says iOS 27.3 Beta Coming Next Week
2 days ago
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
2 days ago
14 New Things Your iPhone Can Do in iOS 27.2
14 New Things Your iPhone Can Do in iOS 27.2
2 days ago
iPhone Duo Review: One Week Later
iPhone Duo Review: One Week Later
2 days ago
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
Samsung Mocks iPhone Duo Display Cracks in New Ad Campaign
2 days ago
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
The MacRumors Show: OLED MacBook Pro, iPad Mini 8, and More
2 days ago
MacBook Pro With Touch Display: 15 More Details Revealed
MacBook Pro With Touch Display: 15 More Details Revealed
2 days ago
Russia Places Apple on State Surveillance Registry
Russia Places Apple on State Surveillance Registry
2 days ago
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
Halloween Weekend Brings Discounts on Apple Accessories and Pre-Orders
2 days ago
Apple Has Released More Than 25 New Products in the Past Two Months
Apple Has Released More Than 25 New Products in the Past Two Months
2 days ago
Local Code Launches as Free, Private AI Assistant Tool for Mac
Local Code Launches as Free, Private AI Assistant Tool for Mac
2 days ago
Apple Acquires Ascend.io
Apple Acquires Ascend.io
2 days ago
HomePod Mini 2 Launches Today: All the New Features
HomePod Mini 2 Launches Today: All the New Features
2 days ago
AirTag 2 4-Pack Drops to New Low Price of $69.99
AirTag 2 4-Pack Drops to New Low Price of $69.99
2 days ago
Rian Johnson's iPhone Camera App Goes Viral
Rian Johnson's iPhone Camera App Goes Viral
2 days ago
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
Where Did All the iPhone Duos Go? Mostly to Apple's Stores
2 days ago

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors