Apple Watch Ultra 4 vs Ultra 3: What’s New & Is the Upgrade Worth It?

Do you sometimes feel like Apple is just messing with us at this point? Every September, it’s the same drill - a new gadget drops, the internet goes crazy, and you’re squinting at a specs sheet trying to figure out if this new launch is a hit or a miss.

Every Apple user is facing this same dilemma right now. The Watch Ultra 4 just made its debut in the market, and people have thoughts. Some say it’s a clone of the Ultra 3 (sans a handful of features). Others feel like the makers went for quality over quantity this time.

Now, we have done our research on the Apple Watches. So grab your coffee and sit back because there’s some serious decoding happening down below.

Apple Watch Ultra 4 vs Ultra 3 - Specs Comparison

Before we dive into the details, here’s a quick comparison of the two gadgets. They’ll give you an overview of what to expect.

Apple Watch Ultra 4 vs Ultra 3 - In-Depth Analysis

Now that you’ve taken a look at the raw specs, time to dig deeper into how (if) they are any good to you. This will help you decode whether the upgrade is worth it or not.

Inside the Chip: S11 vs S10

The older gen features the S10 chip, which is the same one used in Series 10 and Ultra 2. This means this watch didn’t bring an original jump compared to its previous models. It handles everyday tasks, workouts, and smart features pretty smoothly, zero doubts about that. However, this gadget lacks that X-factor that you’d expect from Apple.

But the newer model changes this. It’s got the all-new, all-innovative S11 chip. With a dual-core CPU and four-core Neural Engine, there’s no way this baby lags. It doubles the RAM from 2GB to 4GB. If you look at raw performance, the S11 is the superior chip. So you might notice stronger overall performance in the most recent smartwatch.

Secure Enclave

Courtesy of the S11 chip, the most recent Watch features this brand-new function called the Secure Enclave. Built into the S11 chip, it’s a separate, hardware-isolated area that’s literally designed to handle sensitive information only. So the goal of this compartment is to keep the important data away from the rest of the system.

For the newer model, this matters mainly because of its new audio features. So instead of treating audio processing like a regular non-so-sensitive task, the device keeps it completely isolated. The older model’s S10 chip does not have this Secure Enclave hardware. But it’s not really a fatal flaw. It’s just that the recent features supported by Secure Enclave cannot be added to the previous generation via software updates.

Health Sensing & Readiness

Health tracking is one of the biggest and baddest (in a good way) upgrades of the newest Watch! Thanks to the redesigned health sensing system, this smartwatch has gained significant attention. So the older gen uses periodic optical heart-rate readings. But the latest smartwatch adds new optical and electrical heart sensors that collect heart rate data every five seconds and HRV every five minutes throughout the day.

So this gives you a much more detailed picture of your daily health and recovery. Plus, this high amount of health data can be used in the new Readiness app found in the recently launched smartwatch. It keeps a daily recovery score based on your recent training load, vitals, sleep, and stuff. In short, the latest model’s health-tracking algorithm is spot on!

Fun Fact: Apple actually led research with more than 1000 participants wearing the Series 12 to compare the heart rate sensing accuracy with other fitness trackers, and the Series 12 won!

Audio & Sound Features

The Audio Intelligence is one of the latest additions to the latest Watch. It brings several handy audio features onto your wrist. Starting strong with Live Rewind. It gives you a 15-second transcript of a recent conversation that took place with you. It could be super useful if you weren’t paying attention or missed some important detail. Then there’s Siri Recap. It can shorten longer conversations into short summaries.

On the other hand, there’s Sound Recognition, which picks up sounds such as alarms and sirens around you. Another cool feature is called Shazam. It can identify songs that are playing nearby without you having to physically reach for it. Together, these features make the newer generation a little more useful in everyday use compared to the older generation Watch.

Battery Upgrade

For serious endurance athletes, the battery of the latest launch is a blessing. It’s a big, big deal. Everyday battery life climbs from 42 (on the older gen) to 50 hours (on the newer gen), while Low Power Mode stretches from 72 to 84 hours. During GPS and heart-rate tracking, the newer model can run for up to 18 hours, compared with 14 hours on the older gen. This much battery can get you through a full Ironman marathon within its 17-hour cutoff. And that too without relying on Low Power Mode.

So older generation users need to consider this fact seriously if they’re going to run a marathon anytime soon. Apart from that, there’s also the Extended Workout mode. It can deliver up to 45 hours of tracked activity. It does this by switching off features such as the always-on display. The charging is also pretty quick in the recent model. A 15-minute top-up gives you 18 hours of use compared to older gen’s 12 hours.

Who Should Upgrade & Who Should Not?

The latest launch is loaded with some really cool, next-level upgrades. But this doesn’t mean everyone needs to upgrade. Here’s our hot take on who should and should not upgrade.

Watch Ultra 4 is Great For You If:

• You’re an endurance athlete and want to make the most of a longer battery life with 18-hour GPS tracking and 45 hours of Extended Workout mode for demanding physical activity.
• You’re a recovery-focused user who values continuous HRV tracking, the Readiness score, and health insights for deeper focus on training.
• You’re an accessibility-focused user or tech enthusiast interested in audio intelligence features like Siri Recap, Shazam, Sound Recognition, and others.

Watch Ultra 3 is Great For You If:

• You already own this watch and are happy with it, especially if battery is not an issue for you.
• You’re a casual user who doesn’t need advanced recovery tracking or a health sensing system to get through the day comfortably.
• You’re a first-time buyer who just wants something basic that does the baseline job of a smartwatch done right.

Final Verdict

The Ultra 4 doesn’t really reinvent this premium lineup; instead, it fine-tunes what’s already there. That familiar titanium build, sapphire display, and rugged features are the same in both devices. But the new chip, upgraded sensors, and long battery life change the game. These features make the newer launch more interesting. So yeah, if we have to generally rank one watch better than the other, you know our choice. But in real life, it’s better to evaluate your options smartly.