Is It Time to Upgrade from Galaxy S9 to S21? A Comprehensive Comparison
By Editor • August 14, 2026 • 2 min read
If you're still using the Samsung Galaxy S9 and contemplating an upgrade, you're certainly not alone. The Galaxy S21 series has burst onto the scene with advanced features, enhanced performance, and competitive pricing, prompting many to weigh their options. This comparison aims to clarify whether the S9 still holds its ground or if the S21 is a worthy successor.
The Galaxy S9, released in 2018, still feels relatively modern, primarily due to its last update to Android 10 with Samsung's One UI 2.1. However, the S21 lineup runs on Android 11 with One UI 3.1, which offers more recent security features. While being just one version behind might not push many users to upgrade immediately, the performance enhancements in the S21 could be compelling.
Under the hood, the S21 is powered by either the Snapdragon 888 or the Exynos 2100, while the S9 features the older Snapdragon 845 and Exynos 9810. While the performance gap may not be immediately apparent in everyday tasks, gamers will appreciate the S21’s 120Hz display compared to the S9’s 60Hz, making for smoother gameplay. Additionally, if you're considering a shift to a 5G plan, the S21 is designed to handle next-gen connectivity.
Photography enthusiasts will find the S21's camera system significantly more versatile, featuring a triple-camera setup with enhanced sensors for better low-light performance and modes like Director’s Mode, which allows simultaneous use of three cameras. In contrast, the S9 only has a single camera, limiting its photographic capabilities.
Despite its age, the Galaxy S9 still holds a competitive edge in certain respects, particularly with its iris scanner and compact design. The S21, with a larger 6.2-inch display compared to the S9’s 5.8 inches, maintains a similar footprint, ensuring it remains manageable in hand. The weight difference is negligible, with the S21 being slightly heavier due to its larger battery.
In terms of charging, the S9 supports a maximum of 15W, while the S21 can utilize 25W chargers and offers reverse wireless charging, making it more versatile. However, some users may miss the convenience of the 3.5mm headphone jack and microSD card slot that the S9 provides, features that the S21 lacks.
Ultimately, the decision to upgrade hinges on individual needs. The Galaxy S21 brings a plethora of improvements, especially in performance, camera capabilities, and connectivity. For power users and mobile photographers, the $799 entry-level S21 offers significant value, showcasing three generations of flagship improvements. The S9 may still serve its purpose for those satisfied with its performance, but if you're looking for a device that embraces the future of mobile technology, the S21 is a compelling option.
Source: samsungtechwin.com
