Apple Watch Ultra 4: One minute review

The Apple Watch Ultra 4 avoids radical aesthetic changes, keeping its familiar 49mm titanium build, bright display, and customizable Action Button, while upgrades to its rear health sensors and internal hardware make it a more capable companion for daily wear and endurance workouts.

The most notable improvement is battery life. Apple promises up to 50 hours of normal use, and the source reviewer easily managed two days with the Always-On display enabled and continuous sleep tracking.

The new S11 chip keeps everything responsive, with apps launching quickly and watchOS 27 running smoothly. Faster charging is another welcome addition, replenishing roughly 30% of the battery in just 15 to 20 minutes.

Health and fitness tracking also receive a meaningful boost. The updated Health Sensing System improves measurements, and the new Readiness Score provides a useful snapshot of daily physical preparedness without requiring a monthly subscription.

Smaller quality-of-life additions include real-time step-count complications and expanded Siri intelligence features such as Shazam and Sound Recognition.

The primary drawback is that the Ultra 4 looks and feels nearly identical to its predecessor, meaning owners of the previous generation may not find enough justification for an immediate upgrade.

The Apple Watch Ultra 4 retails for $799 / £749 / AU$1,349 and is available in Natural Titanium or Black Titanium finishes, both including standard Wi-Fi and cellular connectivity.

Ultimately, the Apple Watch Ultra 4 is a refined, reliable smartwatch that builds upon an established foundation with multi-day battery life and capable fitness tracking.

Apple Watch Ultra 4: Price and availability

Priced at $799 / £749 / AU$1,349, the device is offered in Natural Titanium or Black Titanium, with mandatory cellular connectivity included in both versions.

While expensive, it matches the launch price of its predecessor, avoiding annual price hikes despite rising component costs.

Apple Watch Ultra 4: Design

The watch features the familiar squircle 49mm screen in a rugged housing, though the single-size design may still feel oversized on smaller wrists.

The silver Natural Titanium variant provides a striking contrast with the Retina display, accented by the orange Action Button.

The customizable Action Button and bright Always-On Retina OLED display remain standout elements for outdoor legibility and quick shortcut execution.

Physical layout controls remain consistent, featuring the digital crown, side button, and reliable proprietary band connector.

The most significant hardware alteration is located on the rear, featuring a wider Health Sensing System layout designed for improved heart-rate measurement accuracy.

The case houses a physically larger battery alongside faster charging capabilities via the updated magnetic puck.

Overall, the design strictly adheres to the rugged formula established by previous Ultra iterations.

Apple Watch Ultra 4 Review

Apple Watch Ultra 4: Features

New software capabilities driven by watchOS 27 headline the feature upgrades.

The introduction of a daily Readiness Score fills a prior gap in Apple's health ecosystem, synthesizing sleep and activity data.

Unlike competing platforms that lock daily readiness insights behind monthly subscriptions, Apple offers this metric free on compatible devices.

The readiness metric provides a score from 0 to 10 accompanied by context explaining sleep and physical recovery metrics.

Apple Watch Ultra 4 Review

Fitness, Vitals, and Sleep scores integrate dynamically throughout the day and sync directly with the companion iPhone Health application.

The feature integrates seamlessly with Activity Rings, offering actionable insights without requiring a separate subscription.

Apple Watch Ultra 4 Review

Siri AI integration allows voice commands and quick queries directly from the wrist when paired with a compatible iPhone.

The Siri Modular watch face surfaces contextual suggestions, weather updates, and music identification prompts dynamically.

Advanced biometric sensors enable blood oxygen tracking, hypertension alerts, heart-rate variability monitoring, and real-time step count complications.

Apple Watch Ultra 4: Performance

The S11 processor ensures rapid app launching and responsive menu navigation across watchOS 27.

A dedicated always-on processor and Secure Enclave balance performance demands with energy efficiency.

Real-world testing demonstrated over two and a half days of continuous operation with the Always-On display and sleep tracking active.

Rapid recharging replenishes approximately 30% capacity in 15 to 20 minutes.

Hardware capability also lays the groundwork for upcoming audio intelligence features.

Certain announced software tools require official release dates and further evaluation.

Added utilities like Shazam and Sound Recognition function well, though music identification may occasionally struggle during live concert environments.

Apple Watch Ultra 4 Review

Real-time step tracking via watch face complications represents a welcome usability enhancement.

Workout metrics and heart-rate monitoring align closely with dedicated chest strap monitors and competitor fitness wearables.

While incremental for existing users, the combination of processing efficiency and extended battery endurance creates a compelling package.

Score breakdown

Scored out of 10
design9
performance9
display9.5
battery9
value8.5

Specifications

Case Size49mm
FinishesNatural Titanium, Black Titanium
ConnectivityWi-Fi and Cellular standard
ProcessorApple S11 chip
Battery LifeUp to 50 hours normal use
Who it may suit

Buy it if you want long battery life and advanced health tracking in a rugged build; skip it if you already own the previous model and do not need the newest software features.