Galaxy S21 Ultra 5G Vs Galaxy S23+

When considering the practical lifespan of these devices, several factors come into play, including software support, physical durability, and the age of the components.

• Release Timeline: The Galaxy S21 Ultra 5G was released in January 2021, making it two years older than the Galaxy S23 Plus, which launched in February 2023. This age difference directly impacts the duration of software support remaining for each device.
• OS Support Duration: The Galaxy S23 Plus, being a newer device, is expected to receive major Android OS updates for a longer period, likely until Android 17, and security updates for up to five years from its release. The Galaxy S21 Ultra 5G, having launched with Android 11, is expected to receive its last major OS update around Android 15.
• Physical Durability: Both devices feature robust builds with Gorilla Glass on the front and back, along with an aluminum frame, and carry an IP68 rating for dust and water resistance. The Galaxy S23 Plus, however, incorporates Gorilla Glass Victus 2, which offers enhanced protection against drops and scratches compared to the Gorilla Glass Victus on the S21 Ultra 5G.

The performance of a smartphone is largely determined by its internal processing power and how efficiently it handles various tasks, from everyday browsing to demanding applications.

• Processing Capabilities: The Galaxy S23 Plus features a newer generation processor, which provides a noticeable improvement in overall speed and efficiency. This translates to smoother app loading, more fluid multitasking, and enhanced performance in graphically intensive games. The Galaxy S21 Ultra 5G, while still capable, uses an older generation processor that may show its age more quickly with future software updates and demanding applications.
• RAM and Storage: The Galaxy S21 Ultra 5G offered higher RAM options at launch, up to 16GB, compared to the 8GB RAM available in the Galaxy S23 Plus. However, the Galaxy S23 Plus utilizes newer, faster storage technology (UFS 4.0 for 256GB and 512GB variants) which contributes to quicker app launches and file transfers.
• Battery Efficiency: While the Galaxy S21 Ultra 5G has a larger battery capacity at 5000 mAh, the Galaxy S23 Plus, with its 4700 mAh battery, benefits from a more power-efficient processor. This efficiency can lead to comparable or even improved real-world battery longevity for the S23 Plus, especially during sustained use.

The display is a primary interface for any smartphone, and both of these Galaxy models offer high-quality viewing experiences with distinct characteristics.

• Display Technology and Resolution: Both devices feature Dynamic AMOLED 2X displays, known for vibrant colors and deep blacks. The Galaxy S21 Ultra 5G boasts a higher QHD+ resolution (3200 x 1440 pixels) across its 6.8-inch screen, resulting in a sharper image with a higher pixel density. The Galaxy S23 Plus has a 6.6-inch display with a Full HD+ resolution (2340 x 1080 pixels).
• Brightness and Refresh Rate: The Galaxy S23 Plus offers a higher peak brightness of 1750 nits, which can improve visibility in bright outdoor conditions. The S21 Ultra 5G has a peak brightness of 1500 nits. Both phones feature an adaptive refresh rate of up to 120Hz for smooth scrolling and responsiveness. The S21 Ultra 5G's adaptive refresh rate can go as low as 10Hz, while the S23 Plus can go as low as 48Hz.
• Screen Size and Viewing Experience: The S21 Ultra 5G provides a larger viewing area at 6.8 inches, which can be more immersive for media consumption and multitasking. The S23 Plus, at 6.6 inches, offers a slightly more compact form factor while still providing a substantial display.

Both the Galaxy S21 Ultra 5G and the Galaxy S23 Plus offer advanced camera systems, though they approach photography with different strengths.

• Rear Camera System: The Galaxy S21 Ultra 5G features a quad-camera setup with a 108 MP main sensor, a 12 MP ultrawide, and two 10 MP telephoto lenses (3x and 10x optical zoom), providing exceptional versatility and zoom capabilities. The Galaxy S23 Plus has a triple-camera system with a 50 MP main sensor, a 12 MP ultrawide, and a 10 MP telephoto lens with 3x optical zoom.
• Low-Light and Video Performance: The S23 Plus benefits from newer image processing algorithms and a more efficient processor, which can lead to improved low-light performance and enhanced detail in challenging conditions. Both devices are capable of recording 8K video, with the S23 Plus offering 8K at 30fps, an improvement over the S21 Ultra 5G's 8K at 24fps.
• Front Camera: The S21 Ultra 5G features a high-resolution 40 MP front camera, while the S23 Plus has a 12 MP front camera. Despite the megapixel difference, the S23 Plus's front camera often delivers improved image quality due to better processing and a newer sensor.

Beyond core performance and display, several practical features contribute to the overall user experience of these smartphones.

• Connectivity and Ports: Both devices support 5G connectivity and Wi-Fi 6E for fast wireless speeds. They both feature a USB-C port for charging and data transfer, but neither includes a traditional 3.5mm headphone jack. The S23 Plus supports Bluetooth 5.3, a slight upgrade from the S21 Ultra 5G's Bluetooth 5.2.
• Biometric Security: Both phones incorporate an under-display fingerprint sensor for secure unlocking. The S21 Ultra 5G also supports S Pen functionality, though the stylus is sold separately.
• Physical Design and Handling: The Galaxy S21 Ultra 5G is a larger and heavier device, measuring 165.1 x 75.6 x 8.9 mm and weighing 227g (sub6) or 229g (mmWave). The Galaxy S23 Plus is more compact and lighter at 157.8 x 76.2 x 7.6 mm and 196g, making it potentially easier to handle for some users.