iOS 18.6.1: Apple’s Bold Move to Outsource Your Oxygen
Apple has released iOS 18.6.1 (build 22G90) on August 14, 2025, and it’s here to solve a problem you didn’t know lawyers could create. This update doesn’t bring flashy features, security fixes, or performance boosts. Instead, it focuses on one thing: giving back your Blood Oxygen feature—but with a twist that only Apple could market as “innovative.”
Why This Update Exists
Once upon a time, your Apple Watch could measure your blood oxygen like a tiny, wrist-mounted doctor. Then came Masimo, a medical tech company that said, “Hey, that’s our idea!” The U.S. International Trade Commission agreed, and Apple had to disable the feature on certain watches sold in the U.S. The result? A year of users staring at their wrists wondering if they were breathing properly.
What’s New in iOS 18.6.1
Apple’s solution? Move the math to your iPhone. That’s right—your watch still collects the data, but now your iPhone crunches the numbers. Because nothing says “cutting-edge” like turning your $1,000 smartwatch into a glorified sensor.
- On-Watch Readings: Gone.
- Health App Glory: Still there, but only on your iPhone.
- Affected Models: Apple Watch Series 9, Series 10, and Ultra 2 sold in the U.S. after the ITC ban.
How to Get the Update
- Go to Settings > General > Software Update on your iPhone.
- Install iOS 18.6.1.
- Update your Apple Watch to watchOS 11.6.1.
- Wait up to 24 hours for an extra download because apparently, oxygen takes time.
Security Fixes or New Features? Nope.
If you were hoping for bug fixes or security patches, prepare for disappointment. This update is as single-minded as a toddler in a candy aisle—it only cares about oxygen.
What People Are Saying
Tech Blogs
- Forbes: Calls it a “surprise update” and notes that it’s recommended for all users, even though it only benefits a small group.
- Gadget Review: Praises Apple for “navigating patent law, not advancing health tech.” Ouch.
- Bigsansar: Warns that while the feature is back, some users report battery drain, SIM issues, and network instability.
User Reactions
- MacRumors Forum: Some users say the update feels “snappier,” while others complain about keyboard lag and touch response issues.
- Apple Community: One user begged Apple to “fix this bug so I can use my phone as new.” Another replied, “At least you can breathe now.”
- Social Media: Mixed vibes—half the posts celebrate the return of Blood Oxygen, the other half scream about battery calibration errors.
Bottom Line
iOS 18.6.1 is Apple’s way of saying, “We can’t beat the lawyers, but we can beat the system.” If you own an affected Apple Watch, update now and enjoy your oxygen readings—on your iPhone, where they apparently belong. Just don’t be surprised if your battery life starts gasping for air.