When it comes to wearable technology, Apple smartwatches have remained at the forefront of innovation, blending sleek design with advanced features. From the early generations to the latest releases, Apple has continually pushed the boundaries of what a smartwatch can do. Among the most pivotal models in its evolution are the Apple Watch Series 2 smartwatch and the Apple Watch Series 3 smartwatch. These models marked the start of significant improvements in performance, health tracking, and overall usability.
At KEUBE, we understand that not everyone needs the newest Apple Watch model. Many users still appreciate the value and performance of earlier models, especially the Series 2 and Series 3. In this article, we explore what made these smartwatches so popular, their specifications—like the Apple Watch Series 3 sizes—and why they’re still a solid choice in 2025.
The Rise of the Apple Smartwatch
Apple introduced its first smartwatch in 2015, and since then, the lineup has seen consistent updates and refinements. Known for their seamless integration with the Apple ecosystem, Apple smartwatches are more than just wristwatches—they’re fitness trackers, digital wallets, communication tools, and even medical devices.
Whether you're an early adopter or someone considering a more budget-friendly entry point into the Apple wearable world, the Apple Watch Series 2 smartwatch and Series 3 remain relevant and reliable options.
Apple Watch Series 2 Smartwatch: Performance Meets Simplicity
Released in 2016, the Apple Watch Series 2 was a major leap forward from its predecessor. For the first time, the watch offered built-in GPS and water resistance up to 50 meters, making it a perfect fitness companion for swimmers, runners, and everyday users.
The Series 2 was also the first Apple Watch to feature a brighter display (up to 1000 nits), which significantly improved visibility in bright outdoor settings. It was powered by a dual-core processor, providing a noticeably smoother performance compared to the original Series 1.
Key features of the Apple Watch Series 2 smartwatch:
- Built-in GPS for phone-free tracking
- Water resistance (up to 50 meters)
- Brighter OLED Retina display
- Dual-core S2 processor
- Activity and workout tracking
- Heart rate monitoring
While Apple no longer sells the Series 2 directly, at KEUBE, we continue to support customers who still use this dependable device. We offer accessories, replacement bands, charging cables, and protective cases for Series 2 users across the UK.
Apple Watch Series 3 Smartwatch: The Game Changer
Launched in 2017, the Apple Watch Series 3 smartwatch brought more than just performance improvements—it introduced cellular connectivity for the first time, allowing users to leave their iPhones at home and still stay connected. With options for GPS-only and GPS + Cellular, the Series 3 catered to a wide range of needs.
Perhaps one of the most frequently asked questions about this model is: What are the Apple Watch Series 3 sizes? The Series 3 is available in two case sizes:
- 38mm: Suitable for users with smaller wrists or those who prefer a more compact fit.
- 42mm: Designed for those who want a larger display and more prominent wrist presence.
Both sizes offer the same functionality, so the choice primarily comes down to comfort and visual preference.
Top features of the Apple Watch Series 3 smartwatch:
- GPS and optional LTE connectivity
- Altimeter for elevation tracking
- Faster S3 dual-core processor
- Siri voice responses
- Improved fitness tracking and heart rate notifications
- WatchOS compatibility up to version 8
Thanks to its affordability, solid performance, and robust health features, the Apple Watch Series 3 remains a popular choice for new users and budget-conscious buyers. At KEUBE, we stock both sizes of the Series 3 and offer helpful guides to help customers pick the right fit for their needs.
Apple Watch Series 2 vs. Series 3: Which One Should You Choose?
While both models are great in their own right, the Series 3 edges out the Series 2 in several areas. With LTE support, faster performance, and longer software update support, the Series 3 remains a better long-term investment for most users.
That said, the Apple Watch Series 2 smartwatch is still a very capable fitness tracker with a sleek design and core Apple Watch functionality. If you don’t require LTE and want a reliable smartwatch for basic notifications, activity tracking, and water resistance, Series 2 still offers excellent value.
Why Buy Apple Smartwatches from KEUBE?
At KEUBE, we are more than just a smartwatch retailer—we're your trusted partner in wearable tech. Whether you're upgrading to a newer model or seeking accessories for your existing device, KEUBE offers a wide range of solutions for Apple Watch users in the UK.
Why shop with KEUBE?
- Carefully curated inventory of Apple smartwatches and accessories
- Fast and secure UK delivery
- Expert product advice and size guides
- Compatible accessories for older models like the Series 2 and 3
- Competitive pricing and warranty options
Whether you're a fitness enthusiast, busy professional, or simply someone who loves smart tech, KEUBE helps you find the perfect Apple Watch to fit your lifestyle and budget.
Final Thoughts
The Apple Watch Series 2 and Apple Watch Series 3 may be older models, but they still hold significant value in 2025 for users seeking a dependable, stylish, and functional Apple smartwatch. From choosing the right Apple Watch Series 3 size to finding the perfect strap or charger, KEUBE is here to guide you every step of the way.
Explore our selection of new and legacy Apple smartwatches today, and join thousands of satisfied customers across the UK who trust KEUBE for quality wearable tech.