Galaxy A33 5G vs Galaxy S25 Ultra

Galaxy A33 5G
Galaxy A33 5G
Starting at

Refurbished price:A$205.00

Versus A$495.00 new

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Galaxy S25 Ultra
Galaxy S25 Ultra
Starting at

Refurbished price:A$1,122.00

Versus A$2,149.00 new

See options

The Samsung Galaxy A33 5G, released in April 2022, is positioned as a capable mid-range smartphone, offering a balanced set of features for everyday use. In contrast, the Samsung Galaxy S25 Ultra, launched in February 2025, represents a premium flagship device, designed for advanced performance and cutting-edge capabilities. Both devices operate on the Android platform, but they cater to distinct user needs and expectations, primarily differing in their processing power, camera systems, and overall build quality.

Scores

Durability

When considering the longevity of these devices, both offer substantial software support, though the flagship model naturally benefits from a longer commitment.

  • Software Longevity: The Galaxy A33 5G typically receives four major Android operating system updates and five years of security updates, extending its software support until approximately 2027. The Galaxy S25 Ultra, as a 2025 flagship, is guaranteed seven years of major OS upgrades and seven years of security updates, ensuring it remains current and secure well into the 2030s.
  • Physical Durability: The A33 5G features an IP67 rating for dust and water resistance, offering protection against immersion in up to 1 meter of water for 30 minutes, and uses Gorilla Glass 5 for screen protection. The S25 Ultra boasts an IP68 rating, providing slightly enhanced protection against submersion, and incorporates more advanced Gorilla Armor glass for its display, along with a titanium frame for increased resilience.
  • Repairability: The Galaxy A33 5G has a repairability score of around 7.5 to 7.75 out of 10, indicating a relatively straightforward disassembly process with accessible internal components. The Galaxy S25 Ultra, while scoring a provisional 5 out of 10 by some assessments, is noted for improvements like an easier battery swap and modular camera design, making it more repair-friendly than many previous flagships, though it still presents challenges for DIY repairs.

Release year

2022

2025

Operating system

Android

Android

Foldable

No

No

Performance

The performance capabilities of these two smartphones reflect their different market segments, with the S25 Ultra designed for demanding tasks and the A33 5G for reliable daily use.

  • Application Responsiveness: The Galaxy A33 5G handles everyday applications, social media, and casual gaming smoothly, providing a generally fluid user experience. The Galaxy S25 Ultra delivers significantly more processing power, enabling instant app launches, seamless transitions between multiple demanding applications, and high-fidelity gaming without noticeable delays.
  • Multitasking and Storage: The A33 5G is available with 4GB, 6GB, or 8GB of RAM and 128GB or 256GB of internal storage, expandable via microSD, which is sufficient for most users. The S25 Ultra typically comes with 12GB or 16GB of RAM and storage options ranging from 256GB to 1TB, providing extensive capacity for heavy multitasking, large files, and advanced applications.
  • Battery Behavior: Both devices feature a 5000 mAh battery. The A33 5G is reported to offer a full day of use for many users, even with moderate to heavy usage. The S25 Ultra also provides robust battery performance, often lasting more than a day under heavy use, and supports 45W fast wired charging and wireless charging for quick power replenishment.

Memory (GB)

4 GB

12 GB

Screen quality

The visual experience on these devices varies significantly, with the S25 Ultra offering a more advanced and immersive display.

  • Display Technology and Clarity: The Galaxy A33 5G features a 6.4-inch Super AMOLED display with a Full HD+ resolution (1080 x 2400 pixels), providing vibrant colors and deep blacks for enjoyable viewing. The Galaxy S25 Ultra sports a larger 6.9-inch Dynamic LTPO AMOLED 2X display with a sharper QHD+ resolution (1440 x 3120 pixels), delivering exceptional detail and clarity.
  • Refresh Rate and Brightness: The A33 5G offers a 90Hz refresh rate, contributing to smoother scrolling and a more responsive feel than standard 60Hz displays. The S25 Ultra features an adaptive 120Hz refresh rate, which dynamically adjusts for optimal smoothness and power efficiency, alongside a high peak brightness of up to 2,600 nits and an anti-reflective coating for excellent outdoor visibility.
  • Viewing Experience: The A33 5G's display is well-suited for media consumption and everyday tasks. The S25 Ultra's larger, brighter, and more detailed screen, combined with its adaptive refresh rate and reduced glare, provides a more premium and immersive viewing experience, particularly for high-quality content and outdoor use.

Resolution

1080 x 2400

1440x3120

Audiovisual

The camera systems on these phones are a primary differentiator, with the S25 Ultra offering a professional-grade photography and videography experience.

  • Photography Capabilities: The Galaxy A33 5G includes a versatile quad-camera setup with a 48 MP main sensor featuring Optical Image Stabilization (OIS), an 8 MP ultrawide, a 5 MP macro, and a 2 MP depth sensor. It captures good photos in well-lit conditions, suitable for social media. The Galaxy S25 Ultra boasts a highly advanced multi-camera system, typically including a 200 MP main sensor with OIS, a 50 MP ultrawide, a 10 MP 3x telephoto, and a 50 MP 5x telephoto lens. This setup excels in detail, dynamic range, and low-light performance across all lenses, offering professional-grade results.
  • Video Recording and Front Camera: Both devices are capable of recording 4K video at 30 frames per second, though the A33 5G's OIS is primarily effective at 1080p. The A33 5G has a 13 MP front camera, which provides solid image quality for selfies and video calls. The S25 Ultra features a 12 MP front camera, delivering sharp images and high-quality video recording, often with advanced features for enhanced clarity and detail.
  • Special Features: The S25 Ultra's camera system includes advanced features like LOG capture for videography and improved low-light processing, along with powerful zoom capabilities that maintain image quality at higher magnifications. The A33 5G offers features like multi-frame AI image processing for improved photo quality.

Miscellaneous

Beyond core specifications, several practical elements distinguish these two devices in terms of user experience and functionality.

  • Connectivity and Ports: Both phones support 5G connectivity. The Galaxy A33 5G includes Wi-Fi 5 (802.11ac) and Bluetooth 5.1, along with a USB-C port. The Galaxy S25 Ultra supports newer Wi-Fi standards, likely Wi-Fi 7, and a more recent Bluetooth version, offering faster and more reliable wireless connections, also featuring a USB-C port that often supports higher data transfer speeds. Neither device includes a 3.5mm headphone jack.
  • Biometrics and Navigation: The A33 5G incorporates an in-display optical fingerprint sensor for secure unlocking. The S25 Ultra utilizes an under-display ultrasonic fingerprint sensor, which typically offers faster and more secure authentication. The S25 Ultra also integrates the S Pen stylus, providing enhanced productivity and creative input capabilities.
  • Design and Handling: The A33 5G has a plastic back and frame, contributing to its lighter weight of 186g and dimensions of 159.7 x 74 x 8.1 mm, making it comfortable for one-handed use. The S25 Ultra, with its premium materials like a titanium frame and advanced glass, weighs 218g and measures 162.8 x 77.6 x 8.2 mm. Its larger size and premium build contribute to a more substantial in-hand feel, though some users might find it less convenient for single-handed operation.

Weight

186 oz

218 oz

Screen size (in)

6.4

6.9

Network

5G

5G

SIM card

Physical SIM

Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

The Samsung Galaxy A33 5G and Galaxy S25 Ultra cater to different user priorities, reflecting their distinct positions in the smartphone market. Users often praise the A33 5G for its balanced features, reliable battery life, and vibrant display, making it a solid choice for everyday tasks and media consumption. However, some users note that its performance can feel less responsive with demanding applications, and its camera system, while capable, may not satisfy those seeking professional-grade photography.

Conversely, the Galaxy S25 Ultra is frequently lauded for its cutting-edge performance, exceptional display quality, and highly versatile camera system, which includes advanced zoom capabilities. Its long software support and integrated S Pen are also significant advantages for productivity and longevity. Criticisms sometimes point to its larger size and weight, which can impact one-handed usability, and some reviews suggest that its camera's auto mode can occasionally oversaturate images.

Users prioritizing extended software support, top-tier performance for intensive applications and gaming, and a highly advanced camera system with extensive features will find the Galaxy S25 Ultra well-suited to their needs. Its premium build and integrated S Pen also appeal to those seeking a comprehensive flagship experience. On the other hand, users who value a dependable smartphone for daily communication, social media, and casual entertainment, with a focus on practical durability and a comfortable form factor, may prefer the Galaxy A33 5G.

Both models are available as quality-assured refurbished options, providing an eco-friendly alternative for consumers looking to make informed and sustainable choices.

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