Apple is expected to launch the Apple Watch Ultra 4 and Apple Watch Series 12 this September, according to Bloomberg reporter Mark Gurman. The upcoming hardware, likely to be unveiled alongside new iPhone models, follows an annual release cadence for the Ultra line that contrasts with the company’s previous practice of skipping years for its rugged, high-end wearable.
What to Expect from the Apple Watch Ultra 4
The Apple Watch Ultra 4 is rumored to feature a significant design overhaul and upgraded sensing capabilities, according to a report from DigiTimes. While specific details remain thin, the shift suggests Apple is moving beyond the iterative updates seen in 2024, when the company released only a new black titanium color option for the Ultra 2 without altering the internal hardware.

This cycle marks a departure from the company’s early strategy for the Ultra line. Since its 2022 debut, the Ultra has seen a release in 2023, a stagnant year in 2024, and a hardware refresh with the Ultra 3 in 2025. By maintaining an annual rhythm, Apple aims to keep pace with the premium smartwatch market.
How Biometric Security Could Change
Apple is experimenting with Touch ID integration for its watch lineup, based on leaked code discovered in 2025. Implementation remains a technical hurdle; engineers are reportedly considering placing the sensor under the display or within the side button.
If successful, this would provide an alternative to the current wrist-detection security used for Apple Pay. While the feature would reduce the need for numerical passcodes, it faces a high bar for adoption, as current wrist-based authentication already offers a low-friction experience for most users.
Why Noninvasive Glucose Monitoring Remains a Challenge
Despite years of development, noninvasive blood glucose monitoring is not expected in the upcoming 2026 models. According to reporting from MacRumors, the technology is still several years away as engineers work to miniaturize the necessary hardware. The project represents one of Apple’s most significant health-tech long-term investments, seeking to replace traditional finger-prick tests with optical sensor arrays.

Frequently Asked Questions
When will the Apple Watch Ultra 4 be released?
It is expected to launch in September 2026, alongside the Apple Watch Series 12 and new iPhone models, according to Mark Gurman.
Will the Ultra 4 feature a new design?
Yes, reports from DigiTimes indicate the device may receive a full redesign, though specific aesthetic or structural changes have not been confirmed.
Is blood glucose monitoring coming to the Apple Watch soon?
No. While Apple is actively developing the technology, it is not expected to be ready for the 2026 product cycle due to the challenges of component miniaturization.
What is the benefit of the rumored HMO display technology?
Future models using high-mobility oxide (HMO) thin-film transistors will likely offer lower power consumption compared to current LTPO displays, potentially extending battery life.
Do you have questions about the upcoming Apple Watch features or want to share your thoughts on the expected design changes? Join the conversation in the comments section below.
