Apple Watch Series 3 Release Date and Launch History

The Apple Watch Series 3 arrived at a pivotal moment in the evolution of wearable technology. Released officially on September 22, 2017, this device marked the first time an Apple Watch could truly function independently of an iPhone, thanks to the introduction of cellular connectivity. It was more than just a minor update; it was a statement of independence for the Apple Watch lineup, setting a precedent that would define the smartwatch market for years to come.

Official Release Date and Timeline

The journey of the Apple Watch Series 3 began in the Steve Jobs Theater during Apple’s landmark September 2017 event. This event was particularly historic as it also saw the unveiling of the iPhone 8, iPhone 8 Plus, and the revolutionary iPhone X.

Announcement Date

Apple officially announced the Apple Watch Series 3 on September 12, 2017. Jeff Williams, Apple’s Chief Operating Officer at the time, took the stage to introduce the device, highlighting its newfound "freedom" from the iPhone. The announcement focused heavily on the integration of LTE and UMTS cellular radios, which allowed for a seamless transition between the watch and the phone.

Pre-order and Retail Launch

Following the announcement, Apple opened pre-orders for the Series 3 on September 15, 2017. One week later, on September 22, 2017, the device became available for purchase in retail stores and began arriving at the doorsteps of early adopters. The launch covered major markets including the United States, Australia, Canada, China, France, Germany, Japan, Switzerland, and the United Kingdom, with a broader rollout following in the subsequent weeks.

Why the Apple Watch Series 3 Was a Game Changer

Before the Series 3, the Apple Watch was often criticized for being a "tethered" accessory. You could track your runs or check notifications, but for calls, messages, or music streaming, your iPhone had to be within Bluetooth range. The Series 3 fundamentally changed that dynamic.

The Introduction of Built-in Cellular LTE

The headline feature of the 2017 launch was the "GPS + Cellular" model. By integrating a full LTE and UMTS cellular radio, Apple allowed users to make calls, send texts, and use data-reliant apps without their phone. To maintain the sleek profile of the watch, Apple engineers developed an industry-first antenna design that used the display itself as both a transmitting and receiving element.

Additionally, the introduction of an eSIM (embedded SIM) that was a fraction of the size of a traditional SIM card allowed the internal components to remain compact. For users, this meant they could go for a run or a swim at the beach while staying connected to emergency services or receiving important work calls.

Performance Boost with the S3 Dual Core Processor

Under the hood, the Series 3 featured the S3 dual-core processor. Apple claimed a 70 percent performance increase over the S2 chip found in the Series 2. In practical terms, this was the difference between a sluggish interface and a responsive one. The S3 chip was powerful enough to enable Siri to speak back to users through the built-in speaker for the first time on an Apple Watch, rather than just displaying text on the screen.

The W2 Wireless Chip and Efficiency

Efficiency was a major concern with the addition of cellular data. To combat battery drain, Apple introduced the custom W2 wireless chip. This silicon made Wi-Fi 85 percent faster and allowed Bluetooth and Wi-Fi to be 50 percent more power-efficient. This was critical in maintaining the "all-day" 18-hour battery life that Apple Watch users had come to expect, even with the added power draw of an LTE radio.

Detailed Technical Specifications and Hardware

The Apple Watch Series 3 was offered in two primary configurations: the standard GPS model and the GPS + Cellular model. While they looked almost identical from a distance, the hardware internalities and subtle design cues set them apart.

Physical Dimensions and Build Quality

Like its predecessors, the Series 3 came in two case sizes: 38mm and 42mm.

• 38mm Model: Dimensions of 38.6mm x 33.3mm x 11.4mm.
• 42mm Model: Dimensions of 42.5mm x 36.4mm x 11.4mm.

The cellular version was distinguished by a vibrant red dot on the Digital Crown, a design choice that became a status symbol for early LTE adopters. The cases were available in aluminum (Silver, Space Gray, and a new Gold) and stainless steel (Silver and Space Black). For those seeking the ultimate luxury, Apple also offered the Series 3 Edition in a breathtaking White or Dark Gray Ceramic case.

Display Technology

The display was an OLED Retina display with Force Touch, capable of 1,000 nits of brightness. This high brightness level was essential for outdoor visibility during workouts. The glass varied by model: Ion-X strengthened glass for aluminum models and Sapphire crystal for stainless steel and ceramic models.

Sensor Array and Health Tracking

The Series 3 was a significant step forward for health monitoring. It included:

• Barometric Altimeter: This new sensor allowed the watch to track elevation gain, meaning it could finally count "flights climbed" and provide more accurate data for hiking and cycling.
• Heart Rate Sensor: An optical heart sensor that provided resting, walking, and recovery heart rate data.
• Water Resistance: Rated for 50 meters (ISO 22810:2010), making it suitable for pool and open-water swimming.

Software History and watchOS 4 Features

At launch, the Apple Watch Series 3 ran on watchOS 4. This version of the operating system was designed to take full advantage of the new hardware, particularly the faster processor and cellular capabilities.

Heart Rate App Enhancements

With watchOS 4, the Heart Rate app became much more comprehensive. It provided notifications if your heart rate rose above a specific threshold while you were inactive for a 10-minute period. This feature laid the groundwork for Apple’s future endeavors into detecting serious cardiac conditions like atrial fibrillation (AFib).

Apple Music and Radio Streaming

Later in the fall of 2017, a software update enabled cellular users to stream the entire Apple Music library (40 million songs) directly from their wrist. The combination of LTE and the new Radio app allowed users to listen to Beats 1 live or other stations without an iPhone or Wi-Fi.

The Siri Watch Face

WatchOS 4 introduced the proactive Siri watch face, which used machine learning to display the information users needed most throughout the day—such as upcoming appointments, traffic alerts, or sunset times—based on their routines and location.

Specialized Versions: Nike+ and Hermès

Apple continued its successful partnerships with Nike and Hermès for the Series 3, offering specialized hardware and software experiences for different market segments.

Apple Watch Nike+

The Nike+ version of the Series 3 was designed for runners. It featured exclusive Nike Sport Bands and Sport Loops, which were lightweight and breathable. Software-wise, it included exclusive Nike-themed watch faces and deep integration with the Nike Run Club app, including "Audio Guided Runs" featuring coaching from elite athletes.

Apple Watch Hermès

The Hermès collection catered to the luxury market, featuring handcrafted leather bands from France and exclusive watch faces inspired by classic Hermès designs like the Carrick and the Eperon d’Or. All Hermès models of the Series 3 included built-in cellular as a standard feature.

The Unprecedented Five-Year Legacy

One of the most remarkable aspects of the Apple Watch Series 3 is not just its release date, but how long it remained in Apple’s official lineup. Most Apple Watch models are discontinued after one or two years, but the Series 3 survived from September 2017 until September 2022.

The Entry-Level Standard

For years, the Series 3 served as the affordable entry point into the Apple ecosystem. Even after the release of the Series 4, 5, 6, and 7, Apple kept the Series 3 on sale at a reduced price (eventually dropping to $199). It was the go-to recommendation for children, students, or those who wanted a basic fitness tracker without the high price tag of the latest flagship.

The Storage Struggle

As watchOS grew in size and complexity, the Series 3 began to show its age. The GPS-only model was equipped with only 8GB of internal storage, which made installing software updates a frustrating experience for many users. Often, users had to unpair and restore their watch just to clear enough space for an update. This technical limitation eventually led to its discontinuation in favor of the Apple Watch SE.

Comparing Series 3 to Its Predecessor and Successor

To understand the impact of the Series 3, it helps to see where it sat in the timeline of Apple’s wearable development.

The jump from Series 2 to Series 3 was primarily about speed and cellular independence. However, the jump from Series 3 to Series 4 was even more dramatic, introducing a completely new design with thinner bezels, a larger screen, and advanced health features like the ECG.

Is the Apple Watch Series 3 Still Usable in 2025?

If you are looking at a used or refurbished Apple Watch Series 3 today, it is important to manage expectations. While it was a powerhouse in 2017, the landscape of technology has shifted significantly.

Software Limitations

The Series 3 is stuck on watchOS 8.8.1. It did not receive watchOS 9, 10, or 11. This means you will miss out on the latest watch faces, improved workout metrics, and the redesigned interface found in modern versions. More importantly, many third-party apps have dropped support for older OS versions, meaning you might find the App Store experience quite limited.

Performance and Battery Life

The S3 chip, once 70% faster than its predecessor, now struggles with modern app load times. Battery life on older units will also be a concern, as lithium-ion batteries degrade over time. A used Series 3 might only last a few hours if the battery health is low.

Who Should Buy It?

The only reason to consider a Series 3 in 2025 is as a very basic, low-cost fitness tracker. If you only need it for counting steps, tracking a basic run with GPS, and checking the time, it still functions. However, for most people, the Apple Watch SE (2nd Gen) or even a used Series 6 would provide a vastly superior experience for a relatively small increase in price.

Summary of the Series 3 Era

The Apple Watch Series 3 release date of September 22, 2017, marked the beginning of the "Independent Watch" era. It successfully decoupled the wearable from the smartphone, allowing users to leave their phones behind while staying connected to the world. Its five-year tenure as an active product in Apple's store is a testament to its solid build quality and the effectiveness of the S3 chip. While it has now been surpassed by models with larger screens and more advanced sensors like blood oxygen monitoring and ECGs, the Series 3 remains a landmark device in the history of mobile technology.

FAQ

What was the official release date of the Apple Watch Series 3?

The Apple Watch Series 3 was officially released on September 22, 2017.

Did all Series 3 models have cellular?

No. Apple offered two versions: one with GPS only and one with both GPS and Cellular. The cellular version was easily identifiable by the red dot on the Digital Crown.

What was the starting price of the Series 3 at launch?

The GPS-only model started at $329, while the GPS + Cellular model started at $399 in the United States.

When did Apple stop selling the Series 3?

Apple officially discontinued the Apple Watch Series 3 on September 7, 2022, following the announcement of the Apple Watch Series 8 and the new Apple Watch SE.

Does the Apple Watch Series 3 support the latest watchOS?

No. The Series 3 is compatible with versions up to watchOS 8.8.1. It does not support watchOS 9 or any later versions due to hardware limitations.

Can I use a Series 3 with a modern iPhone?

Yes, you can still pair an Apple Watch Series 3 with newer iPhones running modern versions of iOS, though the features will be limited to what watchOS 8 provides.