Apple Watch Ultra 4: Everything Leaked So Far

Chip: The S11 / T8320 Discrepancy

This is the most nuanced area of the leaks and the one that requires the most careful reading.

Leaked internal Apple code lists the Ultra 4 under codename N240, paired with a new T8320 SoC — the same silicon headed to the Series 12 . This would be the first genuinely new Ultra SoC since 2022 (the Ultra 3 reused the S10/S9-class T8310 chip) . The chip is widely expected to be called the S11, though that branding has not appeared in leaks — 9to5Mac projects the name based on the T8320 design .

The important caveat: Bloomberg's Mark Gurman has noted that real-world processing speed has barely moved since the S9 in 2023, despite new chip numbers appearing each year . So while the S11/T8320 is architecturally new, users may not feel a dramatic speed boost in everyday use. The real gains are expected in power efficiency and sensor processing, not raw CPU speed .

Doubled Sensors & Blood Pressure Feature

DigiTimes reports the Ultra 4 will double the number of sensor components versus the Ultra 3 . Some estimates suggest up to eight sensor elements arranged in a ring pattern on the back of the device .

The headline health addition is a new high blood pressure notification system. It uses the optical heart-rate sensor to detect patterns suggesting elevated blood pressure . This is not a cuff-style reading — it flags trends and notifies the user, who would then need to confirm with a medical cuff or at a clinic . The feature is reportedly under review by the FDA .

What is not expected, despite many YouTube rumors, is non-invasive glucose monitoring. No credible leaker or supply-chain report has confirmed this for the Ultra 4 .

Battery Life

Rumored normal-use battery life is 48–72 hours, depending on configuration and usage . The Ultra 3 delivers 42 hours, so a jump to 48+ is the widely cited target . Low Power Mode could push battery life to 72–84+ hours (over three days) .

The thinner chassis (~12.2 mm) may have constrained battery size, but the new S11/T8320's improved power efficiency and a more efficient display are expected to offset this .

Pricing Rumors

Most sources expect the Ultra 4 to hold at $799 in the US, matching the Ultra 2 and Ultra 3 . However, some analysts note that $799 in 2022 is approximately $885 in 2026 dollars after inflation, making a hike to $899 plausible . Tom's Guide and ESRTech both list the range as $799–$899 . India pricing is estimated at ₹89,900–₹94,900 before taxes .

What Is Not Expected

• Touch ID: Apple has reportedly deprioritized fingerprint sensing for this generation .
• MicroLED display: No supply-chain evidence supports a switch from the current OLED .
• Non-invasive glucose monitoring: Not corroborated by any major leaker or supply-chain report .
• Radical price jump: A hike is possible but unconfirmed; $799 remains the most common estimate .

Bottom Line

The Apple Watch Ultra 4 is shaping up to be the biggest update to the line since 2022: a genuinely new chassis, a new SoC (T8320/S11), doubled sensor hardware, hypertension trend alerts, and better battery life — all expected to debut in September 2026 at around $799–$899. The main uncertainty is whether Apple will raise the price. If the leaks hold, it will be a meaningful upgrade over the Ultra 3.