👍 Pros
- Integrated cellular connectivity (LTE) for independent use
- Robust water resistance up to 50 meters
- Retina OLED display with 1000 nits peak brightness
👎 Cons
- Discontinued status limits availability and future support
- Outdated chipset and OS (watchOS 8.7 maximum) struggle with 2026 application demands
- Limited internal storage options (8GB/16GB) for modern applications and media
Expert Review & Rating
Detailed Analysis
Design & Build
The Apple Watch Series 3 Aluminum, released in September 2017, features a design measuring 42.5 x 36.4 x 11.4 mm and weighing 34.9 grams. Its construction comprises a glass front, a ceramic back, and an aluminum frame, contributing to its 50-meter water resistance. The device utilizes an eSIM for cellular connectivity. The display is a 1.65-inch Retina OLED panel, capable of reaching 1000 nits peak brightness, with a resolution of 390 x 312 pixels, resulting in approximately 303 ppi density. Protection is provided by Ion-X strengthened glass, and it incorporates 3D Touch technology. While these specifications were competitive at its launch, the physical dimensions and display technology remain functional, though contemporary smartwatches in 2026 often feature larger, edge-to-edge displays and more advanced protection.
Performance & Health Tracking
Underpinning the Apple Watch Series 3 is the Apple S3 dual-core chipset, initially running watchOS 4.0 and upgradable to watchOS 8.7. In 2026, this hardware and software combination is significantly dated. Modern smartwatch applications and operating system features demand considerably more processing power and memory than the S3 and its 768MB RAM can provide. Users will likely experience noticeable slowdowns, app compatibility issues, and a general lack of responsiveness compared to current-generation devices. Health tracking capabilities are limited to basic activity and heart rate monitoring, with no advanced sensors like ECG, blood oxygen, or temperature tracking, which are standard in many 2026 smartwatches. The 50m water resistance remains a practical feature for swimming and everyday exposure.
Battery Life
Specific battery capacity for the Apple Watch Series 3 Aluminum is not detailed in the provided raw data. However, given its 2017 release and the technological advancements in power efficiency, its battery performance would be substantially outmatched by 2026 standards. Users should anticipate a daily charging requirement, potentially less with heavy usage, which is a common characteristic of older smartwatch models. Contemporary smartwatches frequently offer multi-day battery life, even with always-on displays and extensive sensor usage.
Verdict
In 2026, the Apple Watch Series 3 Aluminum is an obsolete device. Its discontinued status, severely outdated chipset, and limited software support (maxing out at watchOS 8.7) mean it struggles to meet the demands of modern smartwatch usage. While its cellular connectivity and water resistance were notable features at launch, they do not compensate for its fundamental performance limitations and lack of advanced health sensors compared to current offerings. Prospective buyers in 2026 should consider newer models for a functional and supported smartwatch experience. This device is not recommended for purchase in the current market unless for historical interest or extremely basic, non-demanding notifications.