Galaxy A33 5G Vs Galaxy S25 Ultra

Galaxy A33 5G
Galaxy A33 5G
Starting at

Refurbished price:£102.00

Versus £389.00 new

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Galaxy S25 Ultra
Galaxy S25 Ultra
Starting at

Refurbished price:£654.00

Versus £1,249.00 new

See options

Ratings

The Samsung Galaxy A33 5G, released in April 2022, and the Samsung Galaxy S25 Ultra, launched in February 2025, represent distinct segments within Samsung's smartphone lineup. While both operate on the Android platform, the A33 5G is positioned as a capable mid-range device, offering essential features for everyday use, whereas the S25 Ultra stands as a premium flagship, designed for advanced performance, photography, and productivity. Their primary differentiators lie in their processing power, camera systems, and overall build quality, catering to different user expectations and needs.

Scores

Durability

The longevity of a smartphone is influenced by its release timeline, software support, and physical resilience.

  • Release Timeline: The Galaxy A33 5G was released in April 2022, making it a device from an earlier generation. The Galaxy S25 Ultra, launched in February 2025, benefits from being a much newer model, offering a more current technological foundation.
  • Software Longevity: The Galaxy A33 5G is eligible for four major Android OS updates and five years of security updates from its release, extending its software support until approximately 2027. In contrast, the Galaxy S25 Ultra is part of Samsung's commitment to providing seven generations of OS upgrades and seven years of security updates, ensuring support until around 2032. This extended support means the S25 Ultra will remain current with the latest Android features and security protocols for a significantly longer period.
  • Physical Durability: The Galaxy A33 5G features a plastic back and a Gorilla Glass 5 front, offering IP67 water and dust resistance, meaning it can withstand immersion in up to 1 meter of fresh water for 30 minutes. The Galaxy S25 Ultra, with its titanium frame and Gorilla Glass Armor on both the front and back, provides enhanced protection and boasts an IP68 rating, allowing for submersion in deeper water for the same duration. The S25 Ultra's construction is designed for greater resistance to drops and scratches.

Year of Release

2022

2025

Compatible with latest Update

Yes

Yes

OS

Android

Android

Foldable

No

No

Performance

Performance differences between these two devices are notable, impacting everything from app responsiveness to demanding tasks.

  • Processing Power: The Galaxy A33 5G is equipped with an octa-core processor, which handles daily applications and multitasking smoothly. It provides a responsive experience for general use, including browsing, social media, and light gaming. The Galaxy S25 Ultra, on the other hand, features a current-generation, high-performance processor designed for demanding tasks. This allows for exceptionally fast app loading, seamless heavy multitasking, and a fluid experience with graphically intensive games and professional applications.
  • Multitasking and Responsiveness: With its available RAM configurations, the A33 5G manages multiple applications adequately, though users might experience minor delays when switching between many open apps or running very resource-intensive programs. The S25 Ultra typically comes with a larger amount of RAM, enabling it to maintain numerous applications in memory without performance degradation, ensuring consistently smooth transitions and immediate responsiveness.
  • Battery Behavior: Both devices feature a 5000mAh battery capacity. The Galaxy A33 5G generally offers dependable battery life, often lasting a full day of moderate to heavy use. The Galaxy S25 Ultra, despite its powerful components and larger, brighter display, is also designed for extended use, with user reports indicating it can last through a full day even with intensive usage.

Memory (GB)

6 GB

12 GB

Screen quality

The visual experience differs significantly between the two models, primarily due to display technology and specifications.

  • Display Technology and Clarity: The Galaxy A33 5G features a 6.4-inch Super AMOLED display with a Full HD+ resolution, providing vibrant colors and deep blacks suitable for everyday viewing. The Galaxy S25 Ultra boasts a larger 6.9-inch Dynamic AMOLED 2X display with a Quad HD+ resolution, offering superior sharpness and detail, which is particularly noticeable when viewing high-resolution content.
  • Brightness and Refresh Rate: The A33 5G's display has a 90Hz refresh rate, contributing to smoother scrolling and a more fluid visual experience compared to standard 60Hz screens. Its peak brightness is sufficient for most indoor and outdoor conditions. The S25 Ultra features an adaptive 120Hz refresh rate, which dynamically adjusts to content for optimal smoothness and power efficiency, and offers a significantly higher peak brightness, making it highly legible even in direct sunlight. The S25 Ultra also includes an anti-reflective coating for improved outdoor visibility.
  • Viewing Experience: The A33 5G provides a good viewing experience for media consumption and general tasks. The S25 Ultra's larger screen size, higher resolution, and advanced display technologies create a more immersive and detailed viewing experience, ideal for multimedia enthusiasts and those who require precise visual clarity.

Resolution

1080 x 2400

1440x3120

Audiovisual

The camera systems of these devices cater to different levels of photographic ambition and capability.

  • Rear Camera System: The Galaxy A33 5G includes a quad-camera setup with a 48-megapixel main sensor featuring optical image stabilization (OIS), an 8-megapixel ultrawide, a 5-megapixel macro, and a 2-megapixel depth sensor. This configuration is capable of capturing clear photos in good lighting and offers improved stability for handheld shots. The Galaxy S25 Ultra features a more advanced quad-camera system, typically including a 200-megapixel main sensor, a 50-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 greater detail, versatility, and advanced zoom capabilities.
  • Photography Performance: The A33 5G performs well for everyday photography, with its OIS aiding in sharper images, especially in moderately lit conditions. The S25 Ultra excels in various lighting conditions, offering exceptional detail, dynamic range, and low-light performance, often leveraging advanced image processing and larger sensors. Its telephoto lenses allow for high-quality zoomed-in shots that the A33 5G cannot match.
  • Video Recording and Audio: Both devices can record video at 4K resolution at 30 frames per second with their main cameras, with the A33 5G offering OIS for smoother footage. The S25 Ultra offers more advanced video features, including LOG video recording and enhanced AI processing for video, providing greater flexibility for professional-grade content creation. The S25 Ultra also typically features more refined microphone quality for recording and calls, and more robust stereo speakers for a richer media consumption experience.

Front camera

13 megapixels

12

Miscellaneous

Beyond core specifications, several practical elements contribute to the overall user experience and daily utility of these smartphones.

  • Connectivity and Ports: Both devices support 5G connectivity for fast mobile data. The Galaxy A33 5G supports Wi-Fi 5 (802.11ac) and Bluetooth 5.1, and features a USB-C 2.0 port. The Galaxy S25 Ultra typically supports newer standards like Wi-Fi 7 (or Wi-Fi 6E) and Bluetooth 5.4, offering faster and more stable wireless connections. Its USB-C port often supports higher data transfer speeds and video output capabilities. The A33 5G lacks a headphone jack, a common trend in modern smartphones.
  • Biometric Security and Navigation: The A33 5G incorporates an optical in-display fingerprint sensor for secure unlocking. The S25 Ultra typically uses an ultrasonic in-display fingerprint sensor, which is generally faster and more secure, alongside advanced facial recognition. The S25 Ultra also integrates the S Pen stylus, offering precise input for note-taking, drawing, and navigation, which is a unique feature not found on the A33 5G.
  • Design and Handling: The Galaxy A33 5G has a plastic back and frame, contributing to its lighter weight of 186 grams and a comfortable in-hand feel. The Galaxy S25 Ultra features a more premium construction with a titanium frame and glass back, resulting in a more substantial feel and increased weight. Its design often includes subtle refinements like rounded corners for improved ergonomics.

Weight

186 g

233 g

Screen size (in)

6.4

6.9

Mobile network

5G

5G

SIM card

Dual Physical SIM

Dual Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

Connector

USB-C

USB-C

The Samsung Galaxy A33 5G and Galaxy S25 Ultra cater to distinct user profiles, each offering a compelling set of features for their intended audience. Users frequently praise the Galaxy A33 5G for its dependable battery life, vibrant Super AMOLED display, and consistent software support, making it a practical choice for everyday communication and media consumption. Criticisms sometimes point to its processing power not being suited for the most demanding applications or intensive gaming. Overall, the A33 5G is often seen as a well-rounded device that delivers essential smartphone functionality reliably.

The Galaxy S25 Ultra, conversely, receives high acclaim for its cutting-edge camera system, powerful performance, and expansive, high-resolution display. Users appreciate its ability to handle any task with ease, from advanced photography and video editing to high-fidelity gaming. Common discussions around the S25 Ultra often highlight its premium build and the versatility offered by its integrated S Pen. Some users, when comparing it to previous Ultra models, might discuss the nuances of camera zoom capabilities or design changes, but generally, it is regarded as a top-tier device.

Users prioritizing a long-lasting device with extensive software support, a capable camera for general use, and a smooth display for daily tasks will find the Galaxy A33 5G well-suited to their needs. It offers a balanced experience for those who value reliability and a solid feature set without requiring the absolute latest in performance. For individuals who demand the highest levels of performance, a versatile and advanced camera system, a superior display, and the productivity features of an integrated stylus, the Galaxy S25 Ultra aligns with those priorities. It is designed for power users, creative professionals, and technology enthusiasts who seek the most comprehensive smartphone experience available. Both models, whether new or as a quality-assured refurbished option, provide a pathway to Samsung's Android ecosystem, allowing consumers to make an informed and sustainable choice based on their specific requirements.

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