Battery Likely for Upcoming Apple Watch Series 6 Filed in Certification Listings

A battery likely for the upcoming Apple Watch Series 6 has been filed at the Korea Testing and Research Institute and discovered by a Twitter user @yabhishekhd.

YU10448 20011 1

Certification for a 1.17Wh battery with a capacity of 303.8mAh was issued on June 23 by the KTR, a Korean regulatory body that approves and tests new hardware ahead of public sale.

The battery seems to be destined for a future Apple Watch, given the shape, capacity, and model number of A2327. The current Apple Watch Series 5 has a 296mAh battery, a similar model number of A2181, and is visually identical. The battery is also listed in the filing as for "fitness," which would be an appropriate categorization for Apple Watch.

A larger 303.8mAh in a new Apple Watch would offer a larger capacity than in previous generations. This could be facilitated by the removal of the Force Touch technology layer, which was made defunct in WatchOS 7. Without this component in future Apple Watches, internal space could be made available for a slightly larger battery.

Apple claims that Apple Watch Series 5 offers an 18 hour battery life, but since this new battery is only slightly larger, it would be unlikely for the Series 6 battery life to be considerably better. Any significant battery life improvements would be more likely to come from improved power efficiency rather than a larger battery.

Earlier this week, it was rumored that Apple Watch Series 6 could feature blood oxygen monitoring, which could consume more power and account for the need for a larger battery.

‌Apple Watch‌ Series 6 models are expected for a fall launch, and are rumored to feature faster performance, better water resistance, and improved wireless transmission for faster Wi-Fi and cellular speeds.

Related Roundup: Apple Watch 10
Buyer's Guide: Apple Watch (Neutral)

Popular Stories

apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Beyond iPhone 13 Better Blue

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
iPhone 17 Air Pastel Feature

iPhone 17 Air Launching Later This Year With These 16 New Features

Thursday April 24, 2025 8:24 am PDT by
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device. Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...

Top Rated Comments

reallynotnick Avatar
62 months ago
That's 2.635% larger for those who are curious.
Score: 17 Votes (Like | Disagree)
Sebosz Avatar
62 months ago
Without this component in future Apple Watches, internal space could be made available for a slightly larger battery.
Have you actually seen the size of the Force Touch sensor? It has no impact on battery size. It's a thin, elastic cable around the display.


Attachment Image
Score: 15 Votes (Like | Disagree)
mnsportsgeek Avatar
62 months ago

It’s really 2.5 days with regular use honestly. Anyone seeing only 1 day is using GPS and cellular a ton. I find the battery life to be more than adequate.
Mine is usually around 50% when I go to bed. I wouldn’t get through a 2nd day. I don’t consider myself a heavy user, but I’m not going to turn off useful features to try and squeeze a 2nd day of battery life out. If I wanted to do that, I’d buy a watch with fewer features.
Score: 7 Votes (Like | Disagree)
QuarterSwede Avatar
62 months ago

Well that’s a relief. I was gonna be jealous if I had bought the last generation of 1 day battery life.
It’s really 2.5 days with regular use honestly. Anyone seeing only 1 day is using GPS and cellular a ton. I find the battery life to be more than adequate.
Score: 5 Votes (Like | Disagree)
jlocker Avatar
62 months ago
Well it is amazing that my Apple Watch 1.0 is still running today after all the years I have owned from the original release of the watch with the same battery. But it is time to upgrade to Apple Watch 6 this fall :)
Score: 3 Votes (Like | Disagree)
Apple_Robert Avatar
62 months ago

Always on display and 32 GB of storage were 2 key features to get me to upgrade from Series 4 to Series 5. I haven't seen anything yet that would get me to upgrade to Series 6.
There is still time to be amazed come September.

As to battery life, I am going to expect the same battery life as my series 5.
Score: 2 Votes (Like | Disagree)