Galaxy S21+ 5G vs Oppo Reno10

The Samsung Galaxy S21 Plus 5G, released in January 2021, and the Oppo Reno10, launched in mid-2023, are both smartphones offering distinct user experiences. While the Galaxy S21 Plus 5G arrived as a flagship device, the Oppo Reno10 positions itself with a focus on camera capabilities and a modern design. Both devices operate on the Android platform, with Samsung utilizing its One UI overlay and Oppo featuring ColorOS, each providing a unique interface and feature set.

When considering the longevity of these devices, their release timelines and software support policies are key factors.

• Release Timeline: The Samsung Galaxy S21 Plus 5G was released in January 2021, making it an older device compared to the Oppo Reno10, which launched in mid-2023. This difference in age directly impacts their remaining software support. [1, 2, 3, 6, 7]
• Software Longevity: The Galaxy S21 Plus 5G launched with Android 11 and typically receives four major OS updates and five years of security updates, meaning its official software support is nearing its end. [3, 11, 41] The Oppo Reno10, launching with Android 13, is expected to receive two major OS updates and three years of security updates, offering a longer period of official support from its release date. [8, 9]
• Physical Durability: The Galaxy S21 Plus 5G features Corning Gorilla Glass Victus on both its front and back, along with an aluminum frame and an IP68 rating for dust and water resistance, indicating a robust build. [22, 41] The Oppo Reno10 uses AGC DT-Star2 (Dragontrail) Glass for screen protection and has a glass back with a plastic frame, but an official IP rating for dust and water resistance is not consistently specified for the standard model. [5, 9]

The performance of a smartphone is crucial for daily tasks, from app usage to multitasking and gaming.

• Processing Power: The Galaxy S21 Plus 5G is equipped with a high-end processor from its release year, providing robust performance for demanding applications and smooth multitasking. [1, 3, 4] The Oppo Reno10 features a capable mid-range processor that handles everyday applications and moderate gaming smoothly. [2, 5, 15, 17]
• Multitasking and Responsiveness: Both devices offer 8GB of RAM, with some Oppo Reno10 variants also available with 12GB, contributing to efficient multitasking and app switching. [1, 2, 3, 9, 18] Users of both phones generally report a responsive experience for typical smartphone usage.
• Storage Options: Both models are available with 128GB or 256GB of internal storage, providing ample space for apps, photos, and media. [1, 2, 3, 9, 18] Neither device supports expandable storage via a microSD card.
• Battery Behavior: The Galaxy S21 Plus 5G has a 4800mAh battery, which users generally found to last a full day with moderate use. [1, 3, 19, 41] The Oppo Reno10 comes with a larger 5000mAh battery, and users report it reliably lasts through a full day of moderate to heavy use. [2, 5, 13, 17, 38] However, some Reno10 users have noted faster battery drain when using mobile data compared to Wi-Fi. [43]

The display is a primary interface for smartphone interaction, and both devices offer vibrant viewing experiences.

• Display Technology and Size: Both the Galaxy S21 Plus 5G and the Oppo Reno10 feature 6.7-inch AMOLED displays, known for deep blacks and vibrant colors. [1, 2, 5, 19, 22, 29, 33] The Reno10's display is curved, contributing to a sleek design and immersive feel. [2, 5, 13]
• Resolution and Clarity: Both phones offer Full HD+ resolutions (2400x1080 pixels for S21 Plus 5G, 2412x1080 pixels for Reno10), resulting in sharp and clear visuals for everyday viewing. [1, 5, 22, 29, 33]
• Refresh Rate and Smoothness: Both devices boast a 120Hz adaptive refresh rate, providing smooth scrolling and fluid animations. The Galaxy S21 Plus 5G's refresh rate adapts between 48Hz and 120Hz, while the Reno10 maintains a consistent 120Hz. [19, 29, 33, 45]
• Brightness: The Galaxy S21 Plus 5G offers a peak brightness of 1300 nits, ensuring good visibility even in bright outdoor conditions. [33] The Oppo Reno10 reaches a peak brightness of 950 nits (800 nits HBM), which is also suitable for outdoor use. [5, 13, 29] Both support HDR10+ for enhanced contrast in compatible content. [19, 29]

Both smartphones feature versatile camera systems designed to capture a range of photographic and videographic content.

• Rear Camera System: The Galaxy S21 Plus 5G has a triple camera setup with a 12MP wide lens, a 64MP telephoto lens with 3x hybrid optical zoom, and a 12MP ultrawide lens. [11, 19, 21] The Oppo Reno10 also features a triple rear camera system, including a 64MP main sensor, a 32MP telephoto lens with 2x optical zoom, and an 8MP ultrawide lens. [2, 5, 14, 18, 31]
• Low-Light Photography: The Galaxy S21 Plus 5G benefits from improved software and AI processing for low-light shots, aiming for vivid colors and reduced noise. [34, 42] The Oppo Reno10's main camera captures good low-light pictures, though its telephoto camera can show some graininess in very dim conditions. [36]
• Video Recording: The Galaxy S21 Plus 5G supports video recording up to 8K at 24fps, and 4K at 30/60fps, with features like Super Steady stabilization. [26, 34, 41, 47] The Oppo Reno10 records video up to 4K at 30fps, and 1080p at 30/60fps, with electronic image stabilization (EIS). [5, 9, 14, 31]
• Front Camera: The Galaxy S21 Plus 5G has a 10MP front camera. [11, 19] The Oppo Reno10 features a higher resolution 32MP front camera, which users report captures bright and sharp selfies, even offering screen fill light for low-light conditions. [2, 5, 14, 36]
• Audio Experience: Both devices feature stereo speakers for an enhanced media consumption experience. [11, 38] The Galaxy S21 Plus 5G does not include a 3.5mm headphone jack, a common trend in modern smartphones. [11] The Oppo Reno10 also omits the 3.5mm headphone jack. [9, 15]