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As it has evolved through nine collections and multiple derivatives, the Apple Watch has become one of the most popular smartwatches, blending great design with a wealth of features. However, choosing the Apple Watch that best suits your personal needs presents some challenges.

The following guide explains the distinguishing features of each model in detail and offers buying advice to find the best option for your wrist size and budget. Whether you're a first-time watch buyer or considering upgrading from an older version, I'll cover all aspects of these watches.

1. Apple Watch Series 9

The new Apple Watch Series 9 brings compelling upgrades to its predecessor, together shaping an even better user experience. Offering a variety of new color and band options, this series of watches injects an element of style.

One of the highlights of Apple Watch Series 9 is the introduction of gesture control and the innovative Double Tap feature, which is intuitively operated via advanced sensors, dramatically improving accessibility and usability, especially for users with busy hands.

Internally, the Apple Watch Series 9 comes with a newly designed S9 chipset that offers higher CPU and GPU speeds. This upgrade means faster interactions and more responsive overall performance.

The watch features a bezel-less display that is twice as bright as its predecessor, ensuring stunning visuals in bright environments. In addition, its ability to dim down to 1 nits makes it more comfortable to use at night.

Finally, the inclusion of an ultra-wideband chip for easier connectivity with iPhone and the addition of extended connectivity options for media sharing further solidifies the Apple Watch Series 9's position as the best Apple Watch on the market.

2. Apple Watch Ultra 2

The all-new Apple Watch Ultra 2 enters the market with a bigger, more powerful presence designed for consumers who love the outdoors, showcasing Apple's interpretation of the premium segment of technical watches.

The case, with a diameter of up to 49 millimeters, looks majestic and powerful, and its tough appearance emphasizes the strength of its hardware. The screen is twice as bright as any previous watch, greatly enhancing visibility.

Apple Watch Ultra 2 supports customizable action buttons that allow users to easily start a workout or mark segments. Equipped with dual-frequency GPS and new positioning algorithms, it provides the most accurate wrist-based location tracking to date, especially for outdoor enthusiasts.

Battery life can be extended up to 60 hours even at low power settings, making it an ideal companion for mountain adventures.

Apple Watch Ultra 2 is twice as water resistant as Series 8 for diving. When Ultra is submerged, the Depth app launches automatically to provide underwater information. The watch is not only powerful in terms of functionality, but also demonstrates Apple's leadership in design and performance.

3. Apple Watch SE (2022)

The Apple Watch SE (2022), Apple's second-generation SE product, continues the core Watch experience and is relatively affordable, continuing the design style of the first generation. While it doesn't bring groundbreaking upgrades, it maintains a similar look to its predecessor in terms of design.

New features include the use of a nylon composite back, which reduces the weight of the 40mm and 44mm cellular versions by 2.9 grams and 3.4 grams, respectively. In addition to the lighter look, the updated Apple Watch SE (2022) features the same dual-core processor as the Series 8 and Ultra, boosting the speed of the 20%.

Like these models, it also offers collision detection to provide timely help in the event of an accident. However, arguably the most significant change is the price, which has been reduced considerably compared to the 2020 version.

4. Apple Watch Series 8

The introduction of the Apple Watch Series 8 was not a revolution, but more of an evolution. Instead of bringing the design innovations that many expected, the watch carries over many of the specs that made its predecessor so popular.

In addition to the cosmetic carryover, it continues to feature the same ever-bright Retina display, 18 hours of battery life and 50 meters of water resistance. So what's new?

The Apple Watch Series 8 is powered by the S8 chip, but it doesn't offer a major performance boost. What's more, it's now capable of taking temperature measurements: there's a sensor on the back and one below the display to regulate the ambient temperature, augmenting the suite of health features already available in watchOS 9 with temperature readings.

Specifically, this new data should improve the accuracy of menstrual cycle tracking. Other tweaks focus on the software level: a low-power mode is expected to extend battery life to 36 hours, while a collision detection algorithm can sense if you've been in a serious crash.

5. Apple Watch Series 7

The Apple Watch Series 7, once the flagship of the Apple Watch lineup, has been updated for a more attractive price. The new generation comes in larger sizes (41mm and 45mm) in a more rounded and durable package with a crack-resistant front crystal.

Compared to Apple Watch Series 6, the ever-bright Retina display has increased in size and brightness, and the bezel is slimmer, helping to provide a more immersive experience that leads to faster input.Apple Watch Series 7 has also been upgraded to watchOS 9 and remains a sophisticated and stylish watch.

The oximetry and ECG sensors provide users with a comprehensive fitness experience. While the battery life is slightly disappointing, it doesn't seem to be a big deal considering the more attractive price.

6. Apple Watch SE (2021)

The first-generation Apple Watch SE was the more affordable Apple Watch option. Although some time has passed, this first-generation Apple Watch SE now finds the ideal balance between price and performance.

Even though it didn't get an update and doesn't have some of the features that some of the more expensive Apple Watch models offer, and isn't even as good as the newer SE version, it's still a high-quality wearable with most of the smart features that everyday users need.

It's smaller in size and lacks an always-on display, ECG or blood oxygen sensor. However, the Apple Watch SE is still a water-resistant smartwatch with a refined aluminum exterior, Retina OLED display and several health tracking features. In addition to a rich ecosystem of apps, the SE also supports the latest watchOS 9.

7. Apple Watch Series 3

As a 2017 veteran, the Apple Watch Series 3 may seem a bit stale in Apple's lineup. However, Apple does have a valid reason for keeping this watch in production for so long: it's undoubtedly one of the most cost-effective smartwatches on the market. It still has a lot to offer as a minimalist yet fully functional wearable device.

Sure, it's not the fastest watch, the sharpest screen or the brightest display by modern standards. But if you're looking for a reliable, water-resistant Apple Watch for logging exercise, controlling music and receiving notifications, the Apple Watch Series 3 is quite affordable.

While the 38mm version seems smaller by current standards, it's still a great option for more slender wrists. While it has officially been discontinued, you still have a chance to find some in stock online.

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