Galaxy A55 vs Galaxy S24 Ultra

Galaxy A55
Galaxy A55
Starting at

Refurbished price:A$339.00

Versus A$699.00 new

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Galaxy S24 Ultra
Galaxy S24 Ultra
Starting at

Refurbished price:A$869.00

Versus A$1,057.00 new

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Ratings

The Samsung Galaxy A55 and the Samsung Galaxy S24 Ultra represent different segments within Samsung's smartphone lineup, both released in early 2024. The Galaxy A55, launched in March 2024, is designed for a broader audience, while the Galaxy S24 Ultra, released in January 2024, stands as a premium device. The primary distinctions lie in their performance capabilities, advanced camera systems, and overall build quality, though both operate on Android 14 with Samsung's One UI 6.1.

Scores

Durability

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

  • Release Timeline and Software Support: The Galaxy A55, released in March 2024, is expected to receive four major Android operating system updates and five years of security updates. In contrast, the Galaxy S24 Ultra, launched in January 2024, offers a more extended commitment with seven years of both operating system and security updates. This difference means the S24 Ultra will maintain current software features and security protections for a significantly longer period.
  • Build Materials and Protection: The Galaxy A55 features Gorilla Glass Victus+ on both its front and back, coupled with an aluminum frame, and carries an IP67 rating for dust and water resistance. The Galaxy S24 Ultra elevates durability with a titanium frame, Gorilla Armor on the front display, and Gorilla Glass on the back, achieving an IP68 rating. User tests indicate the S24 Ultra's Gorilla Armor provides enhanced scratch resistance compared to typical smartphone glass, and its titanium frame contributes to greater bend resistance.
  • Practical Lifespan: For users prioritizing the longest possible software support and robust physical protection, the Galaxy S24 Ultra offers a more extended practical lifespan. The Galaxy A55 still provides a respectable period of support and good everyday durability.

Operating system

Android

Android

Foldable

No

No

Performance

Performance is a key differentiator, impacting how smoothly devices handle various tasks, from everyday apps to demanding games.

  • Processing Power: The Galaxy A55 is equipped with a processor that capably handles daily applications, web browsing, and casual gaming, providing a responsive experience for general use. The Galaxy S24 Ultra features a high-end processor designed for intensive tasks, ensuring smooth operation during heavy multitasking, graphic-intensive gaming, and complex productivity applications without noticeable slowdowns.
  • Memory and Storage: The Galaxy A55 is available with 8GB or 12GB of RAM and 128GB or 256GB of internal storage, with the added flexibility of a microSD card slot for expandable storage. The Galaxy S24 Ultra comes with 12GB of RAM across all configurations and offers larger internal storage options of 256GB, 512GB, or 1TB, though it does not support expandable storage via microSD.
  • Battery Behavior: Both devices house a 5000 mAh battery. The Galaxy A55 generally provides good battery life, often lasting a full day of moderate to heavy use, with some users reporting up to two days on a single charge. The Galaxy S24 Ultra is noted for its exceptional battery endurance, frequently lasting beyond a full day even for heavy users, attributed to its efficient processor and optimized software.

Memory (GB)

8 GB

12 GB

Screen quality

The display is a primary interface, and differences in screen technology and specifications can significantly affect the viewing experience.

  • Display Technology and Resolution: The Galaxy A55 features a 6.6-inch Super AMOLED display with a Full HD+ resolution (1080x2340 pixels), offering clear visuals and vibrant colors suitable for media consumption and daily tasks. The Galaxy S24 Ultra boasts a larger 6.8-inch Dynamic LTPO AMOLED 2X display with a Quad HD+ resolution (1440x3120 pixels), providing a sharper and more detailed image, particularly noticeable with high-resolution content.
  • Brightness and Refresh Rate: Both devices feature a 120Hz refresh rate for smooth scrolling and fluid animations. The Galaxy A55 reaches a peak brightness of 1000 nits, which is adequate for outdoor visibility in most conditions. The Galaxy S24 Ultra offers a significantly higher peak brightness of 2600 nits, ensuring excellent visibility even under direct sunlight, and includes an anti-glare coating for improved viewing in bright environments.
  • Viewing Experience: Users who prioritize a larger, brighter, and more detailed display for content creation, detailed work, or outdoor use will find the S24 Ultra's screen capabilities more beneficial. The A55's display provides a quality viewing experience for general use and media.

Resolution

1080x2340

1440x3120

Audiovisual

Camera capabilities are a significant factor for many users, with both devices offering distinct photographic strengths.

  • Rear Camera Systems: The Galaxy A55 features a triple-camera setup, including a 50-megapixel main sensor with optical image stabilization (OIS), a 12-megapixel ultrawide lens, and a 5-megapixel macro lens. It performs well for everyday photography, capturing decent detail and color in good lighting, and offers acceptable low-light performance for its category. The Galaxy S24 Ultra comes with a versatile quad-camera system, featuring a 200-megapixel main sensor with OIS, a 12-megapixel ultrawide lens, a 10-megapixel telephoto lens with 3x optical zoom, and a 50-megapixel telephoto lens with 5x optical zoom. This setup provides exceptional detail, advanced zoom capabilities, and strong performance across various lighting conditions.
  • Front Camera and Video Recording: The Galaxy A55 includes a 32-megapixel front camera and supports video recording up to 4K at 30 frames per second. The Galaxy S24 Ultra has a 12-megapixel front camera and offers more advanced video recording options, including 8K at 30 frames per second and 4K at up to 120 frames per second, providing greater flexibility for high-quality video capture.
  • Audio Experience: Both devices feature stereo speakers, providing a more immersive audio experience for media consumption. The microphone quality on both is suitable for calls and general recording.

Miscellaneous

Beyond core features, several practical elements contribute to the overall user experience and device utility.

  • Connectivity and Ports: The Galaxy A55 supports 5G connectivity, Wi-Fi 6, and Bluetooth 5.3, and includes a USB-C 2.0 port for charging and data transfer. The Galaxy S24 Ultra also offers 5G, but upgrades to Wi-Fi 7 for faster wireless speeds, maintains Bluetooth 5.3, and features a more advanced USB-C 3.2 port, which allows for quicker data transfers and external display output.
  • Sensors and Unique Features: Both phones incorporate an under-display fingerprint sensor for secure unlocking. The Galaxy A55 uses an optical sensor, while the Galaxy S24 Ultra utilizes an ultrasonic sensor, which can offer faster and more reliable authentication. A notable exclusive feature of the S24 Ultra is the integrated S Pen, providing enhanced precision for note-taking, drawing, and navigation.
  • Physical Characteristics: The Galaxy A55 measures 161.1 x 77.4 x 8.2 mm and weighs 213 grams. The Galaxy S24 Ultra is slightly larger and heavier at 162.3 x 79 x 8.6 mm and 232 grams. These dimensions mean the S24 Ultra has a more substantial feel in hand, while the A55 is marginally lighter and more compact.

Weight

213 oz

220 oz

Screen size (in)

6.6

6.8

Network

5G

5G

SIM card

Physical SIM

Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

User feedback for the Galaxy A55 often highlights its strong battery life, vibrant display, and capable camera system for everyday use, making it a solid choice for general smartphone tasks and media consumption. Some users note that while its camera is good for its segment, it doesn't reach flagship levels, and battery performance can vary with very heavy usage.

The Galaxy S24 Ultra receives consistent praise for its exceptional battery life, highly versatile and detailed camera system with advanced zoom, powerful performance for demanding applications, and its bright, high-resolution display. The integrated S Pen is also frequently cited as a valuable tool for productivity and creativity. Criticisms sometimes include minor display grain at very low brightness levels and a perception among some users of less software control compared to other platforms.

Users prioritizing long-term software support, advanced camera capabilities, top-tier performance for intensive tasks, and a premium build with stylus functionality will find the Galaxy S24 Ultra well-suited to their needs. Conversely, individuals seeking a reliable device for daily communication, social media, casual photography, and media consumption, with a good balance of features, may prefer the Galaxy A55. Both devices offer quality experiences, and considering a quality-assured refurbished option can be a sustainable choice for either model.