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Galaxy S21 5G vs Oppo Reno10
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Differences at a glance
The Samsung Galaxy S21 5G, released in January 2021, and the Oppo Reno10, launched in May 2023, are both Android smartphones that offer distinct user experiences. While the Galaxy S21 5G was a flagship device at its release, the Oppo Reno10 positions itself as a strong contender in the mid-range segment with more recent hardware. The primary differences lie in their release timelines, camera systems, and battery capacities, catering to varying user priorities.
Available Models
Colour
Storage (GB)
Scores
Durability
When considering the longevity of these devices, several factors come into play, including their release dates, software support, and physical durability.
- Release Timeline: The Samsung Galaxy S21 5G was released in January 2021, making it an older device compared to the Oppo Reno10, which launched in May 2023. This difference in release date directly impacts their expected software support cycles.
- Software Longevity: The Galaxy S21 5G typically receives four major Android OS updates and five years of security updates from its release, meaning its official software support is nearing its end. The Oppo Reno10, being newer, is expected to receive three major Android OS updates and four years of security updates, extending its software lifespan further into the future.
- Physical Durability: The Galaxy S21 5G features Gorilla Glass Victus on the front and an aluminum frame, along with an IP68 rating for dust and water resistance, indicating a robust build. The Oppo Reno10 uses Asahi Glass AGC DT-Star2 for screen protection and has a glass front and back with a plastic frame. It lacks an official IP rating, though some sources mention splash resistance.
Release year
2021
2023
Compatible with latest Update
Yes
Yes
Operating system
Android
Android
Foldable
No
No
Performance
Both smartphones offer capable performance for daily tasks, though their underlying hardware differs, leading to variations in handling demanding applications and multitasking.
- Processing Power: The Galaxy S21 5G is equipped with a processor that was a top-tier performer at its release, providing smooth operation for demanding apps and gaming. The Oppo Reno10 features a more recent mid-range processor, which handles everyday tasks and multitasking efficiently.
- Multitasking and Storage: Both devices typically come with 8GB of RAM, allowing for competent multitasking. Storage options for both generally start at 128GB and go up to 256GB, providing ample space for apps and media.
- Battery Performance: The Galaxy S21 5G has a 4000 mAh battery, which for some users might require daily charging with heavy use. The Oppo Reno10 comes with a larger 5000 mAh battery, offering extended usage times. It also supports 67W fast charging, allowing for quick recharges.
Screen quality
The visual experience on both devices is delivered through vibrant displays, each with its own characteristics that cater to different preferences.
- Display Technology and Size: The Galaxy S21 5G features a 6.2-inch Dynamic AMOLED 2X display, known for its deep blacks and vibrant colors. The Oppo Reno10 offers a larger 6.7-inch AMOLED display, providing a more expansive viewing area.
- Resolution and Clarity: Both phones offer Full HD+ resolutions (2400 x 1080 pixels for S21 5G, 2412 x 1080 pixels for Reno10), resulting in sharp and clear visuals for everyday content consumption.
- Brightness and Refresh Rate: The Galaxy S21 5G can reach a peak brightness of 1300 nits, making it highly visible in bright outdoor conditions. The Oppo Reno10 has a peak brightness of 950 nits, which is also suitable for most lighting environments. Both devices feature a 120Hz adaptive refresh rate, contributing to smooth scrolling and fluid animations.
Resolution
1080 x 2400
1080x2412
Audiovisual
Both smartphones are equipped with versatile camera systems designed to capture a range of photographic and videographic content, though with different strengths.
- Rear Camera System: The Galaxy S21 5G features a triple camera setup with a 12MP main sensor, a 12MP ultrawide, and a 64MP telephoto lens offering 3x hybrid optical zoom. The Oppo Reno10 also has a triple camera system, including a 64MP main sensor, an 8MP ultrawide, and a 32MP telephoto lens with 2x optical zoom.
- Photography Performance: The Galaxy S21 5G is known for producing detailed and color-accurate photos in various conditions, including good low-light performance. The Oppo Reno10's main sensor also delivers high-quality images, with its telephoto lens being a notable feature for portrait photography.
- Video Recording and Front Camera: The Galaxy S21 5G supports video recording up to 8K resolution, along with 4K at 30/60fps, and has a 10MP front camera. The Oppo Reno10 records video up to 4K at 30fps and features a higher resolution 32MP front camera, which is beneficial for detailed selfies and video calls.
Front camera
10 megapixels
32 megapixels
Miscellaneous
Beyond the core features, several practical elements contribute to the overall user experience and daily usability of these devices.
- Connectivity and Ports: Both the Galaxy S21 5G and Oppo Reno10 support 5G connectivity, Wi-Fi 6, and Bluetooth, ensuring modern wireless communication. Both devices utilize a USB-C port for charging and data transfer and lack a traditional 3.5mm headphone jack.
- Biometrics and Design: Both phones incorporate an under-display fingerprint sensor for secure unlocking. The Galaxy S21 5G has dimensions of 151.7 x 71.2 x 7.9 mm and weighs around 169-171g, offering a compact and relatively light feel. The Oppo Reno10 is slightly larger and heavier at 162.4 x 74.2 x 8 mm and 185g, providing a more substantial in-hand feel.
- Audio Experience: The Galaxy S21 5G features stereo speakers, providing a more immersive audio experience for media consumption. The Oppo Reno10 also offers good sound quality, with some models featuring a stereo speaker system.
Weight
169 oz
185 oz
Screen size (in)
6.2
6.7
Network
5G
5G
SIM card
Physical SIM + eSIM
Dual Physical SIM
Carrier compatibility
Unlocked
Unlocked
What the community thinks
The Samsung Galaxy S21 5G and Oppo Reno10 each present a compelling package, though they cater to slightly different user needs and preferences. The Galaxy S21 5G, despite being an older flagship, is often praised by users for its compact design, robust build quality with IP68 water resistance, and its capable camera system that delivers consistent results. Users frequently highlight its vibrant AMOLED display and smooth performance for daily tasks. Some common criticisms, however, include its battery life, which for heavy users might not last a full day, and its software support window closing sooner than newer devices.
The Oppo Reno10, a more recent release, receives positive feedback for its larger and bright AMOLED display, impressive battery life with fast charging capabilities, and its dedicated telephoto lens which is a strong point for portrait photography. Users appreciate its modern design and efficient performance for a mid-range device. Potential concerns sometimes revolve around its lack of an official IP rating and its ultrawide camera performance compared to its main and telephoto lenses.
Users prioritizing a more compact device with strong durability features and a proven flagship camera system may find the Galaxy S21 5G well-suited to their needs. Conversely, those who value a larger display, extended battery life, faster charging, and a longer software support timeline, along with a capable portrait camera, might lean towards the Oppo Reno10. Both devices offer a quality-assured refurbished option, providing an eco-friendly alternative for consumers looking to make informed and sustainable choices.









