Does the Apple Watch Ultra 4 work without an iPhone?

It has cellular, so calls, messages and data work without the phone nearby. Setup and full features still need an iPhone 11 or later running iOS 27 or later.

How is it different from a standard Apple Watch?

Bigger 49mm titanium case, a larger display, cellular built in and longer battery life. It is aimed at sports and outdoor use rather than everyday wear.

Is the heart rate sensor really more accurate?

Apple says it is the most accurate heart rate sensing in a wearable, based on its own August 2026 study. Independent testing is the better check for your use.

What is the battery life like?

Apple says battery life varies by use and configuration. Expect it to fall well short of Garmin's multi-week adventure watches, especially with cellular and GPS running.

Does it support Apple Intelligence?

Yes, with Siri and the device language set to a supported language. Siri AI is in beta in watchOS 27, is not initially available in the EU, and server-based features have daily usage limits.

What comes in the box?

The watch with its band and a charging cable. A power adapter is not included.

Apple

Watch Ultra 4 GPS + Cellular 49mm, Black Titanium Case

Best price now

$799.00at BrandsMart USAChecked Nov 8

Prices are checked against each store and labelled with when.

Visit BrandsMart USA

Apple

Watch Ultra 4 GPS + Cellular 49mm, Black Titanium Case

Best price now

$799.00at BrandsMart USAChecked Nov 8

Prices are checked against each store and labelled with when.

Visit BrandsMart USA

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Price facts

Last seen at $799.00 at BrandsMart USA on Nov 8.

Our take on the Watch Ultra 4 GPS + Cellular 49mm, Black Titanium Case

The Apple Watch Ultra 4 is Apple's largest, toughest watch, built for divers, trail runners and hikers who want phone-free connectivity. It pairs a 49mm black titanium case with GPS and cellular, so it works without an iPhone nearby. Apple claims the most accurate heart rate sensing in a wearable and a battery that outlasts long events. Against the standard Apple Watch it adds ruggedness, a bigger screen and longer runtime; against Garmin's adventure watches it trades multi-week battery life for a full smartwatch platform and deep iPhone integration.

Best forTrail runners and hikersDivers and water sportsAthletes training without a phoneiPhone owners wanting a rugged smartwatch

Pros

Titanium case built for rough use
GPS and cellular without an iPhone nearby
Apple's most accurate heart rate sensing claim
Large 49mm display for outdoor visibility
Full smartwatch features: apps, calls, messages, payments

Cons

Requires iPhone 11 or later on iOS 27 or later
Battery life is far shorter than Garmin's multi-week adventure watches
Large 49mm case suits bigger wrists better
Some Apple Intelligence features are beta, region-limited or capped daily

Watch Ultra 4 GPS + Cellular 49mm, Black Titanium Case prices at every store

BrandsMart USANew
In stockReturn policy
$799.00Checked Nov 8
Visit BrandsMart USA

About the Watch Ultra 4 GPS + Cellular 49mm, Black Titanium Case

Apple Watch Ultra 4 is a sports and adventure watch with GPS + Cellular. It has a 49mm black titanium case.

It pairs with an iPhone 11 or later running iOS 27 or later. Its heart rate sensing is the most accurate Apple has built into a wearable, based on an Apple-conducted study from August 2026. Battery life varies by use and configuration.

Apple Intelligence is available with Siri on this watch when the device and Siri language are set to a supported language. Siri AI is in beta in watchOS 27 and is available in English to start. Some features may not be available in all regions or languages.

Brand: Apple
Case size: 49mm
Case material: Black titanium
Connectivity: GPS + Cellular
Compatibility: iPhone 11 or later with iOS 27 or later
Software: watchOS 27
Apple Intelligence languages: Chinese (Simplified), Chinese (Traditional), Danish, Dutch, English, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Spanish, Swedish, Turkish, Vietnamese

Questions and answers

Does the Apple Watch Ultra 4 work without an iPhone?: It has cellular, so calls, messages and data work without the phone nearby. Setup and full features still need an iPhone 11 or later running iOS 27 or later.
How is it different from a standard Apple Watch?: Bigger 49mm titanium case, a larger display, cellular built in and longer battery life. It is aimed at sports and outdoor use rather than everyday wear.
Is the heart rate sensor really more accurate?: Apple says it is the most accurate heart rate sensing in a wearable, based on its own August 2026 study. Independent testing is the better check for your use.
What is the battery life like?: Apple says battery life varies by use and configuration. Expect it to fall well short of Garmin's multi-week adventure watches, especially with cellular and GPS running.
Does it support Apple Intelligence?: Yes, with Siri and the device language set to a supported language. Siri AI is in beta in watchOS 27, is not initially available in the EU, and server-based features have daily usage limits.
What comes in the box?: The watch with its band and a charging cable. A power adapter is not included.
Where is the Watch Ultra 4 GPS + Cellular 49mm, Black Titanium Case cheapest?: At BrandsMart USA, for $799.00, as of our latest check.