Galaxy S21 Ultra 5G Vs Galaxy S23 Ultra

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

Refurbished price:£187.00

Versus £1,800.00 new

See options
Galaxy S23 Ultra
Galaxy S23 Ultra
Starting at

Refurbished price:£299.00

Versus £1,599.00 new

See options

Ratings

The Samsung Galaxy S21 Ultra 5G, released in January 2021, and the Samsung Galaxy S23 Ultra, launched in February 2023, represent two generations of Samsung's premium smartphone line. While both devices offer a high-end Android experience with Samsung's One UI, the S23 Ultra introduces advancements in processing power, camera technology, and overall efficiency. These differences cater to varying user priorities, from photography enthusiasts to those seeking extended device longevity.

Scores

Durability

The lifespan of a smartphone is influenced by its physical durability and the duration of software support it receives.

  • Release Timeline: The Galaxy S21 Ultra 5G was released in January 2021, making it an older model compared to the Galaxy S23 Ultra, which launched in February 2023. This two-year difference impacts their respective positions in the update cycle.
  • Software Longevity: The Galaxy S21 Ultra 5G was eligible for four generations of Android OS updates and five years of security updates from its release. The Galaxy S23 Ultra also received four years of Android OS updates and five years of security updates, offering a longer period of current software support due to its later release.
  • Build Materials and Protection: Both devices feature an aluminum frame and an IP68 rating for dust and water resistance, indicating a similar level of protection against environmental elements. The S21 Ultra uses Gorilla Glass Victus for screen protection, while the S23 Ultra incorporates the newer Gorilla Glass Victus 2, which is designed to offer enhanced drop performance on rough surfaces.

Year of Release

2021

2023

Compatible with latest Update

Yes

Yes

OS

Android

Android

Foldable

No

No

Performance

Performance is a key differentiator, impacting everything from app responsiveness to battery endurance.

  • Processing Capabilities: The Galaxy S23 Ultra features a more advanced and efficient processor compared to the Galaxy S21 Ultra 5G. This results in noticeably smoother operation, faster app loading times, and more capable handling of demanding applications and multitasking. Users will experience a more fluid overall system responsiveness on the newer model.
  • Battery Efficiency: Both smartphones are equipped with a 5000 mAh battery. However, the Galaxy S23 Ultra's more efficient internal components contribute to significantly improved real-world battery life, often lasting longer on a single charge even with heavy usage. The S23 Ultra also supports faster wired charging at 45W, compared to the S21 Ultra's 25W.
  • Storage and Memory: The Galaxy S21 Ultra 5G offered configurations with 12GB or 16GB of RAM and storage options up to 512GB. The Galaxy S23 Ultra typically comes with 8GB or 12GB of RAM, but its base storage starts at 256GB and goes up to 1TB, utilizing faster UFS 4.0 storage technology in higher capacities, which contributes to quicker data access and app performance.

Memory (GB)

12 GB

8 GB

Screen quality

The display is a primary interface, and both devices offer a high-quality visual experience with some notable distinctions.

  • Display Technology and Size: Both the Galaxy S21 Ultra 5G and the Galaxy S23 Ultra feature a 6.8-inch Dynamic AMOLED 2X display, providing vibrant colors and deep blacks. They both support HDR10+ content for an enhanced viewing experience.
  • Brightness and Clarity: While both displays are bright and clear, the Galaxy S23 Ultra offers a higher peak brightness of 1750 nits, compared to the S21 Ultra's 1500 nits. This makes the S23 Ultra's screen slightly more visible in bright outdoor conditions. Both maintain a Quad HD+ resolution, offering sharp visuals, though the S21 Ultra has a marginally higher pixel density due to a slightly different aspect ratio.
  • Refresh Rate and Design: Both phones feature an adaptive refresh rate of up to 120Hz for smooth scrolling and animations. The S23 Ultra's display can dynamically scale down to 1Hz for improved power efficiency, whereas the S21 Ultra typically switches between 60Hz and 120Hz. The S23 Ultra also has a slightly flatter screen curvature, which can enhance the S Pen experience and reduce accidental touches.

Resolution

1440 x 3200

1440 x 3088

Screen type

Dynamic AMOLED 2X

Dynamic AMOLED 2X

Audiovisual

The camera systems on both Ultra models are designed for versatile photography, with the newer model bringing significant enhancements.

  • Main Camera Sensor: The Galaxy S23 Ultra features a 200MP main camera sensor, a substantial upgrade from the S21 Ultra's 108MP main sensor. This higher resolution on the S23 Ultra allows for capturing more detail and offers greater flexibility for cropping images.
  • Low-Light and Zoom Performance: The S23 Ultra shows notable improvements in low-light photography, producing sharper and brighter images with better dynamic range. Both devices include dual telephoto lenses, offering 3x and 10x optical zoom. While the S21 Ultra's zoom capabilities are still strong, the S23 Ultra's AI enhancements contribute to sharper long-range shots, particularly at higher digital zoom levels.
  • Video and Selfie Cameras: The S23 Ultra can record 8K video at 30 frames per second, an improvement over the S21 Ultra's 8K at 24 frames per second, and offers enhanced video stabilization. For selfies, the S21 Ultra has a 40MP front camera, while the S23 Ultra features a 12MP front camera. Despite the lower megapixel count, the S23 Ultra's selfie camera often delivers more natural tones and improved detail, especially in challenging lighting.

Main camera

108 megapixels

200 megapixels

Front camera

40 megapixels

12 megapixels

Miscellaneous

Beyond core specifications, several practical features contribute to the overall user experience.

  • Connectivity and Ports: Both devices support 5G cellular connectivity and Wi-Fi 6E for fast wireless internet. The Galaxy S21 Ultra 5G features Bluetooth 5.2, while the S23 Ultra upgrades to Bluetooth 5.3, offering minor improvements in connectivity efficiency. Both utilize a USB-C port for charging and data transfer and lack a traditional 3.5mm headphone jack.
  • S Pen Integration: A significant difference is the S Pen. While the Galaxy S21 Ultra 5G supports S Pen input, the S Pen itself is not integrated into the device and must be purchased separately, often requiring a special case for storage. The Galaxy S23 Ultra, however, features a built-in S Pen slot, making the stylus a seamless part of the phone's design and functionality.
  • Physical Design and Sensors: The S23 Ultra has a slightly wider and more angular design with flatter edges compared to the S21 Ultra's more rounded corners, which can affect handling for some users. Both phones include an ultrasonic in-display fingerprint sensor for secure unlocking and a suite of other sensors like accelerometers, gyroscopes, and barometers.

Weight

227 g

234 g

Screen size (in)

6.8

6.8

Mobile network

5G

5G

SIM card

Dual Physical SIM + eSIM

Dual Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

Connector

USB-C

USB-C

The Samsung Galaxy S21 Ultra 5G and Galaxy S23 Ultra both stand as capable flagship smartphones, each with distinct advantages. Users frequently praise the S23 Ultra for its exceptional battery life, responsive performance, and significantly improved camera system, particularly in low-light conditions and for detailed zoom shots. Some users, however, note its larger, boxier form factor can be less comfortable for one-handed use.

The S21 Ultra, despite being an older model, is still regarded by many as a highly capable device, offering a vibrant display and a versatile camera setup that holds up well in good lighting. Its slightly more rounded design might appeal to those who prefer a softer in-hand feel. However, its performance may feel less fluid over time compared to the S23 Ultra, and its battery life, while still good, is not as optimized.

Users prioritizing the latest advancements in mobile photography, extended battery endurance, and the convenience of an integrated S Pen will find the Galaxy S23 Ultra well-suited to their needs. Its more powerful processor also ensures a smoother experience with demanding applications and offers greater future-proofing. Conversely, users who find the S21 Ultra's performance and camera capabilities sufficient for their daily tasks, and perhaps prefer its design, may still find it to be a strong option. For those considering either device, exploring quality-assured refurbished options can provide a sustainable choice for acquiring these advanced smartphones.

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