Apple changed the smartwatch industry when it introduced the Apple Watch in 2015. Over the years, the company has released a variety of models, each more advanced than the last. However, it’s the earliest versions that laid the groundwork for what the Apple Watch has become today. These original models showcased Apple’s ability to merge technology, design, and user experience in a compact device worn on the wrist.
Understanding the history of Apple Watches helps appreciate how far the technology has come. Each generation introduced new features, refined designs, and addressed user feedback. In this article, we will explore the 9 oldest Apple Watch models, starting from the first release and continuing through the subsequent years. These models represent Apple’s early efforts and innovations that shaped the modern smartwatch landscape.
Whether you’re a tech enthusiast, a collector, or someone curious about Apple’s journey into wearable technology, this guide will give you a detailed look into the foundation of Apple Watches.
1. Apple Watch (1st Generation) – Released April 24, 2015
The first Apple Watch, often called the “Series 0,” marked Apple’s entry into the wearable market. It came in three collections: Apple Watch Sport, Apple Watch, and Apple Watch Edition.
- Processor: S1 chip
- Operating System: watchOS 1 (upgradable to watchOS 4.3.2)
- Key Features: Digital Crown, Force Touch, heart rate sensor, Taptic Engine
- Materials: Aluminum, stainless steel, 18-karat gold (Edition)
While it lacked GPS and was somewhat slow, it introduced the foundation for features like fitness tracking, customizable watch faces, and notifications. It set the standard for the Apple Watch’s design, which still remains recognizable today.
2. Apple Watch Series 1 – Released September 16, 2016
Apple introduced Series 1 as a more affordable version of the Series 2. It kept the same exterior design but upgraded the internal processor.
- Processor: S1P dual-core chip
- Operating System: watchOS 3 (upgradable to watchOS 6.3)
- Key Features: Improved performance, heart rate sensor, accelerometer, gyroscope
- Materials: Aluminum
Series 1 improved the responsiveness and speed of the Apple Watch. It lacked GPS and water resistance, making it a budget-friendly entry for new users.
3. Apple Watch Series 2 – Released September 16, 2016
Launched alongside Series 1, the Series 2 was a major update. It targeted users who wanted more functionality and durability.
- Processor: S2 dual-core chip
- Operating System: watchOS 3 (upgradable to watchOS 6.3)
- Key Features: Built-in GPS, water resistance up to 50 meters, brighter display
- Materials: Aluminum, stainless steel, ceramic (Edition)
Series 2 was the first Apple Watch truly suited for outdoor and fitness use. It allowed runners and swimmers to track their workouts without needing an iPhone nearby.
4. Apple Watch Series 3 – Released September 22, 2017
Series 3 pushed the boundaries of smartwatch independence by introducing cellular connectivity.
- Processor: S3 dual-core chip
- Operating System: watchOS 4 (upgradable to watchOS 8.7.1)
- Key Features: Optional LTE connectivity, altimeter, improved Siri
- Materials: Aluminum, stainless steel, ceramic (Edition)
With an LTE-enabled version, users could receive calls, stream music, and use apps without their iPhone. It also came with better performance and improved battery life.
5. Apple Watch Series 4 – Released September 21, 2018
Series 4 brought a fresh design and significant health-oriented upgrades.
- Processor: S4 64-bit dual-core chip
- Operating System: watchOS 5 (upgradable to watchOS 10.4)
- Key Features: Larger display with thinner bezels, ECG app, fall detection
- Materials: Aluminum, stainless steel, gold stainless steel
It was the first redesign since the original watch, offering 40mm and 44mm sizes. The ECG feature helped Apple position the Watch as a more serious health device.
6. Apple Watch Series 5 – Released September 20, 2019
Series 5 added a much-requested feature: an always-on display.
- Processor: S5 dual-core chip
- Operating System: watchOS 6 (upgradable to watchOS 10.4)
- Key Features: Always-on Retina display, compass, international emergency calling
- Materials: Aluminum, stainless steel, titanium, ceramic
The always-on screen allowed users to check the time and glance at information without lifting their wrist. New case materials also gave users more options for personalization.
7. Apple Watch SE (1st Generation) – Released September 18, 2020
While not a flagship series, the first Apple Watch SE offered many of the same features at a lower price point.
- Processor: S5 dual-core chip
- Operating System: watchOS 7 (upgradable to watchOS 10.4)
- Key Features: Retina display, fall detection, Emergency SOS, Family Setup
- Materials: Aluminum
The SE combined the performance of Series 5 with a more budget-friendly design, making it ideal for new users or families.
8. Apple Watch Series 6 – Released September 18, 2020
Series 6 continued Apple’s focus on health and wellness, offering advanced tracking features.
- Processor: S6 dual-core chip
- Operating System: watchOS 7 (upgradable to watchOS 10.4)
- Key Features: Blood oxygen sensor, brighter always-on display, faster charging
- Materials: Aluminum, stainless steel, titanium
It was also the first model to introduce a blue and red aluminum case, offering more style choices.
9. Apple Watch Series 7 – Released October 15, 2021
Series 7 refined the Apple Watch design further and enhanced usability.
- Processor: S7 dual-core chip
- Operating System: watchOS 8 (upgradable to watchOS 10.4)
- Key Features: Larger display with thinner borders, faster charging, enhanced durability
- Materials: Aluminum, stainless steel, titanium
Series 7 pushed the display closer to the edge and introduced a more crack-resistant front crystal. It marked the most durable Apple Watch to date.
Conclusion
From the original Series 0 to the more refined Series 7, each of these Apple Watches contributed to building the robust ecosystem that Apple Watch users enjoy today. The early models laid the technological and design foundation, gradually evolving with better processors, displays, and health features.
Apple’s ability to integrate advanced health tracking, connectivity, and style in a compact wearable has made the Apple Watch a leader in the smartwatch market. Understanding its evolution helps appreciate the innovation that has gone into each model. Whether you’re collecting, reminiscing, or researching, these nine early models highlight the journey of an iconic device.
