Apple Releases watchOS 7.3 With Unity Watch Face, Expanded ECG Availability and More

Apple today released watchOS 7.3, the third major update to the watchOS 7 operating system that was released in September. watchOS 7.3 comes more than a month after watchOS 7.2, an update that brought support for Apple Fitness+

7
‌‌The watchOS 7.3 update‌‌ can be downloaded for free through the dedicated Apple Watch app on the iPhone by going to General > Software Update. To install the new software, the Apple Watch needs to have at least 50 percent battery, it needs to be placed on a charger, and it needs to be in range of the ‌‌‌‌‌‌iPhone‌‌‌‌‌‌.

watchOS 7.3 adds a "Time to Walk" feature for Apple Fitness+ subscribers, adding an audio experience in the Workout app where those who are doing a walking workout can listen to inspiring stories during their walks. Time to Walk offers stories from music artists, athletes, and other influential people that Apple Watch owners and Apple Fitness+ subscribers can listen to while walking.


Each episode is 25 to 40 minutes in length and features guests like country music star Dolly Parton, musician Shawn Mendes, actress Uzo Aduba, and NBA player Draymond Green. Speakers share "lessons learned, meaningful memories, thoughts on purpose and gratitude, moments of levity, and other thought-provoking topics." Time to Walk is available to Apple Fitness+ subscribers. Apple technically released Time to Walk ahead of watchOS 7.3, but it is listed in the release notes for the update and is considered a watchOS 7.3 addition.

With the watchOS 7.3 update, ECG functionality is expanding to Japan, Mayotte, Philippines, and Thailand, while irregular heart rhythm notifications are coming to Japan, Mayotte, Philippines, Taiwan, and Thailand.

The update adds a new Unity Watch Face inspired by the colors of the Pan-African flag (black, red, and green), with shapes that change throughout the day with movement. The face also features black, red, green, and yellow color options along with a black/gray color option.

apple watch unity face
watchOS 7.3 also includes a bug fix for an issue that could cause the Control Center and Notification Center to become unresponsive when Zoom is enabled, with full release notes below:

watchOS 7.3 includes new features, improvements, and bug fixes, including:

- Unity watch face--inspired by the colors of the Pan-African Flag, the shapes change throughout the day as you move creating a face that's unique to you
- Time to Walk for Apple Fitness+ subscribers--an audio experience in the Workout app where guests share inspiring stories as you walk
- ECG app on Apple Watch Series 4 or later in Japan, Mayotte, Philippines, and Thailand
- Irregular heart rhythm notifications in Japan, Mayotte, Philippines, Taiwan, and Thailand
- Fix for an issue where Control Center and Notification Center may be unresponsive when Zoom is enabled

For more on everything that's included in the watchOS 7 operating system, we have a dedicated watchOS 7 roundup.

Related Roundup: watchOS 26
Related Forum: Apple Watch

Popular Stories

maxresdefault

Where's the New Apple TV?

Monday December 22, 2025 11:30 am PST by
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now. Subscribe to the MacRumors YouTube channel for more videos. Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Next Year With These 12 New Features

Tuesday December 23, 2025 8:36 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another nine months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models. The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID Front camera in...
airpods color prototypes

Apple Tested AirPods in Bright Colors

Saturday December 27, 2025 6:06 am PST by
Apple reportedly tested a version of the first-generation AirPods with bright, iPhone 5c-like colored charging cases. The images, shared by the Apple leaker and prototype collector known as "Kosutami," claim to show first-generation AirPods prototypes with pink and yellow exterior casings. The interior of the charging case and the earbuds themselves remain white. They seem close to some...
iOS 26

iOS 26.2 Adds These 8 New Features to Your iPhone

Monday December 22, 2025 8:47 am PST by
Earlier this month, Apple released iOS 26.2, following more than a month of beta testing. It is a big update, with many new features and changes for iPhones. iOS 26.2 adds a Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. Below, we have highlighted a total of eight new features. Liquid Glass Slider on Lock Screen A new slider in the Lock...
maxresdefault

Hands-On With a Rough iPhone Fold Mockup

Monday December 29, 2025 10:55 am PST by
Apple is rumored to be introducing a foldable iPhone in September 2026, and since it will bring the biggest form factor change since the iPhone was introduced in 2007, curiosity about the design is high. A 3D designer created an iPhone Fold design based on rumors, and we printed it out to see how it compares to Apple's current iPhones. Subscribe to the MacRumors YouTube channel for more ...
top stories 2025 12 27

Top Stories: iPhone Fold Mockup, Where's the New Apple TV?, and More

Saturday December 27, 2025 6:00 am PST by
Merry Christmas and Happy Holidays from MacRumors! News in the Apple world has unsurprisingly been relatively slow over the past week, but Apple's upcoming foldable iPhone managed to make its way back into the news, while we also shared updates on current and future Apple TV news. iOS 26.3 will be bringing some new features, particularly for users in the EU, so we'll look for additional...
Apple Wallet ID Illinois

Apple Plans to Expand iPhone Driver's Licenses to These 7 U.S. States

Wednesday December 24, 2025 8:40 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
maxresdefault

10 Mac Apps Worth Trying in 2026

Wednesday December 24, 2025 9:27 am PST by
2026 is almost upon us, and a new year is a good time to try out some new apps. We've rounded up 10 excellent Mac apps that are worth checking out. Subscribe to the MacRumors YouTube channel for more videos. Alt-Tab (Free) - Alt-Tab brings a Windows-style alt + tab thumbnail preview option to the Mac. You can see a full window preview of open apps and app windows. One Thing (Free) -...

Top Rated Comments

nawk Avatar
64 months ago
ECG is amazing. Something was wrong with me this past weekend - heart was feeling weird. Ran the ECG on my watch and said "Atril Firbrillation" - talk to you doctor. I went to emergency and am now being treated for Afib. Sounds like a commercial - but wow. Thanks Apple.
Score: 32 Votes (Like | Disagree)
DinkThifferent Avatar
64 months ago
Updating my iPad, iPhone, iMac or Apple TV is super easy but boy.... updating my Apple Watch is always a drama. Extremely slow (download!), unreliable and takes forever to install.

Hope Apple will fix that in the future.
Score: 13 Votes (Like | Disagree)
nightflight82 Avatar
64 months ago
ECG Australia I mean Hello!
Score: 6 Votes (Like | Disagree)
tgwaste Avatar
64 months ago
Enough with the Woke Faces. Make something useful. We get it. Youre woke. We GET IT.
Score: 6 Votes (Like | Disagree)
Apple_Robert Avatar
64 months ago

ECG is amazing. Something was wrong with me this past weekend - heart was feeling weird. Ran the ECG on my watch and said "Atril Firbrillation" - talk to you doctor. I went to emergency and am now being treated for Afib. Sounds like a commercial - but wow. Thanks Apple.
It is a very good thing you were observant and took heed.
Score: 6 Votes (Like | Disagree)
stlblufan Avatar
64 months ago

Does the U1 chip in the Apple Watch 6 do something now?
First, Apple gave us U2 that no one wanted, now they give us U1 that no one can use. I guess you can listen to U2 on your U1-equipped device.
Score: 6 Votes (Like | Disagree)