Galaxy S10 Vs Galaxy S21 Ultra 5G

Galaxy S10
Galaxy S10
Starting at

Refurbished price:£108.00

Versus £639.00 new

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Galaxy S21 Ultra 5G
Galaxy S21 Ultra 5G
Starting at

Refurbished price:£187.00

Versus £1,800.00 new

See options

Ratings

The Samsung Galaxy S10, released in March 2019, and the Samsung Galaxy S21 Ultra 5G, launched in January 2021, represent different generations of Samsung's flagship smartphone line. While both devices offer a premium Android experience, the S21 Ultra 5G introduces significant advancements in camera technology, display refresh rates, and overall processing power, reflecting the evolution of smartphone capabilities over two years.

Scores

Durability

When considering the long-term usability of these devices, their respective release timelines and software support play a crucial role.

  • Release Timeline: The Galaxy S10 was released in March 2019, while the Galaxy S21 Ultra 5G followed in January 2021. This two-year difference means the S21 Ultra 5G benefits from a longer period of official software updates and security patches from Samsung, extending its practical lifespan. The Galaxy S10 received major Android updates up to Android 12, while the S21 Ultra 5G launched with Android 11 and is expected to receive updates for several more years, potentially up to Android 15 or beyond.
  • Repairability: Both devices present challenges for repair. The Galaxy S10 received a repairability score of 3 out of 10 from iFixit, largely due to the extensive use of adhesive for the battery and display, making disassembly difficult. Similarly, the Galaxy S21 Ultra 5G also scored 3 out of 10, with iFixit noting that while standard Phillips screws are used, a significant amount of glue secures the battery, display, and rear panel, complicating repairs.
  • Expected Lifespan: Given the extended software support and newer hardware, the Galaxy S21 Ultra 5G is likely to remain fully functional and compatible with new applications for a longer duration than the Galaxy S10. However, the low repairability scores for both suggest that professional repair might be necessary for significant hardware issues, which can impact their overall practical lifespan if parts become scarce or repairs costly.

Year of Release

2019

2021

Compatible with latest Update

No

Yes

OS

Android

Android

Foldable

No

No

Performance

The performance capabilities of the Galaxy S10 and Galaxy S21 Ultra 5G show a notable generational leap, impacting everything from daily tasks to demanding applications.

  • Processing Power: The Galaxy S21 Ultra 5G features a significantly more advanced processor compared to the Galaxy S10. This translates to faster app loading times, smoother multitasking, and more efficient handling of graphically intensive games and applications. Users will experience a more responsive and fluid interface on the S21 Ultra 5G.
  • Battery Behavior: The Galaxy S21 Ultra 5G is equipped with a larger 5000 mAh battery, compared to the 3400 mAh in the standard Galaxy S10 and 4500 mAh in the S10 5G variant. Despite the larger capacity, some users of the S21 Ultra 5G have reported that its powerful display and processor can lead to considerable battery drain, especially with high refresh rate enabled, sometimes requiring a charge before the end of a heavy day. The Galaxy S10, while having a smaller battery, was generally reported to offer a full day of use for many users, though some experienced issues with battery drain.
  • Storage and RAM: The Galaxy S21 Ultra 5G offers configurations with up to 16GB of RAM and 512GB of internal storage, alongside a 128GB base model. The Galaxy S10 typically came with 8GB of RAM and storage options up to 512GB, with some variants offering 12GB RAM and 1TB storage. The higher RAM in the S21 Ultra 5G contributes to more seamless multitasking and better performance with multiple applications open simultaneously.

Memory (GB)

8 GB

12 GB

Screen quality

The display experience on these two devices showcases advancements in mobile screen technology over time.

  • Display Technology and Resolution: Both phones feature Dynamic AMOLED displays, known for their vibrant colors and deep blacks. The Galaxy S10 has a 6.1-inch Dynamic AMOLED display with a resolution of 1440 x 3040 pixels. The Galaxy S21 Ultra 5G steps up with a larger 6.8-inch Dynamic AMOLED 2X display, offering a resolution of 1440 x 3200 pixels. The '2X' designation on the S21 Ultra 5G indicates an enhanced version of the technology.
  • Refresh Rate and Smoothness: A key differentiator is the refresh rate. The Galaxy S10 features a standard 60Hz refresh rate. In contrast, the Galaxy S21 Ultra 5G boasts an adaptive 120Hz refresh rate, which provides a noticeably smoother scrolling experience and more fluid animations. This higher refresh rate can significantly enhance the perception of responsiveness during daily use and gaming.
  • Brightness and Viewing Experience: The S21 Ultra 5G's display can achieve higher peak brightness levels, making it more comfortable to view content outdoors or in brightly lit environments. While the S10's display is still excellent, the S21 Ultra 5G offers a more immersive and visually superior viewing experience due to its larger size, higher refresh rate, and improved brightness.

Resolution

1440 x 3040

1440 x 3200

Screen type

Dynamic AMOLED

Dynamic AMOLED 2X

Audiovisual

The camera systems of the Galaxy S10 and Galaxy S21 Ultra 5G highlight a significant leap in mobile photography capabilities.

  • Rear Camera System: The Galaxy S10 features a versatile triple-camera setup, including a 12-megapixel wide-angle lens, a 12-megapixel telephoto lens with 2x optical zoom, and a 16-megapixel ultra-wide lens. The Galaxy S21 Ultra 5G, however, comes with a more advanced quad-camera system: a 108-megapixel wide-angle main sensor, a 12-megapixel ultra-wide lens, and two 10-megapixel telephoto lenses, offering 3x and 10x optical zoom respectively, alongside a periscope zoom lens for up to 100x Space Zoom.
  • Photography Performance: The S21 Ultra 5G generally delivers more detailed and sharper images, especially in challenging lighting conditions, due to its higher resolution main sensor and improved image processing. Its advanced telephoto capabilities allow for much greater zoom without significant loss of quality compared to the S10. The S10 still captures good photos in everyday scenarios, but the S21 Ultra 5G offers more flexibility and superior results in a wider range of situations, including macro photography.
  • Video Recording and Front Camera: The S21 Ultra 5G supports 8K video recording at 24fps and offers a 40-megapixel front camera capable of 4K video at 60fps. The Galaxy S10 records up to 4K video at 60fps and has a 10-megapixel front camera. The S21 Ultra 5G provides a noticeable upgrade in video quality and front-facing camera detail, making it better suited for high-resolution content creation and video calls.

Main camera

12 megapixels

108 megapixels

Front camera

10 megapixels

40 megapixels

Miscellaneous

Beyond core performance, several practical elements differentiate the user experience between these two Samsung smartphones.

  • Connectivity and Ports: The Galaxy S21 Ultra 5G offers comprehensive 5G connectivity as standard, along with Wi-Fi 6E and Bluetooth 5.2, ensuring faster and more stable wireless connections. While a variant of the S10 (S10 5G) also supported 5G, the standard S10 was limited to 4G LTE. The Galaxy S10 includes a 3.5mm headphone jack and a USB-C port, whereas the S21 Ultra 5G relies solely on a USB-C port for charging and audio, omitting the headphone jack.
  • Biometric Security and Build: Both devices feature in-display fingerprint sensors for secure unlocking. The S21 Ultra 5G incorporates a larger, second-generation ultrasonic fingerprint reader, which can offer improved reliability. The S10 uses Gorilla Glass 6 for its display and Gorilla Glass 5 for its back, with an aluminum frame. The S21 Ultra 5G features Gorilla Glass Victus on both the front and back, providing enhanced drop and scratch resistance, and also has an aluminum frame.
  • Dimensions 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. The standard Galaxy S10 is more compact and lighter at 149.9 x 70.4 x 7.8 mm and 157g, making it easier for one-handed use and pocketability. The S21 Ultra 5G also supports the S Pen, a feature not available on the S10, expanding its utility for note-taking and drawing.

Weight

175 g

227 g

Screen size (in)

6.1

6.8

Mobile network

4G

5G

SIM card

Physical SIM

Dual Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

Connector

USB-C + Jack 3.5mm

USB-C

The Samsung Galaxy S10 and Galaxy S21 Ultra 5G cater to different user priorities, largely due to the technological advancements made between their release dates. The Galaxy S10, praised for its compact design, inclusion of a headphone jack, and generally reliable performance for its time, was a solid flagship. Users appreciated its vibrant display and capable camera system for everyday photography. However, common criticisms included battery drain for some users and the ultrasonic fingerprint scanner's compatibility issues with certain screen protectors.

The Galaxy S21 Ultra 5G, on the other hand, is lauded for its significantly upgraded camera system with advanced zoom capabilities, a larger and smoother 120Hz display, and a more powerful processor that handles demanding tasks with ease. Its 5G connectivity and S Pen support also stand out as major advantages. User feedback, however, sometimes points to concerns about its larger size and weight, potential battery drain when the high refresh rate is consistently active, and occasional software glitches or heating issues.

Users prioritizing a more compact form factor, the convenience of a headphone jack, and a device that still performs well for general use may find the Galaxy S10 suitable. Conversely, those who demand the latest in mobile photography, a highly fluid display, top-tier performance for gaming and productivity, and future-proof 5G connectivity will likely prefer the Galaxy S21 Ultra 5G. For consumers looking for a quality-assured refurbished option, both models offer a sustainable choice, allowing access to premium features at different price points without compromising on functionality.

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