Galaxy S23 Ultra Vs Galaxy Z Fold7

Galaxy S23 Ultra
Galaxy S23 Ultra
Starting at

Refurbished price:£299.00

Versus £1,599.00 new

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Galaxy Z Fold7
Galaxy Z Fold7
Starting at

Refurbished price:£916.00

Versus £1,799.00 new

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Ratings

The Samsung Galaxy S23 Ultra, released in early 2023, represents a traditional flagship smartphone experience, emphasizing camera capabilities and an integrated stylus. In contrast, the Samsung Galaxy Z Fold7, launched in late 2025, offers a distinct foldable design that transforms from a compact smartphone into a larger tablet-like display. The primary differentiator between these two devices lies in their form factor, which significantly impacts screen size, durability considerations, and overall user interaction.

Scores

Durability

When considering the practical lifespan of these devices, several factors come into play, including their release timelines, software support, and physical durability.

  • Software Longevity: The Galaxy S23 Ultra, released in February 2023, is expected to receive four major Android operating system updates and five years of security updates, extending its software support until early 2028. The Galaxy Z Fold7, being a newer device from August 2025, benefits from Samsung's extended software commitment, likely receiving five major OS updates and seven years of security patches, pushing its support well into the 2030s. This provides the Z Fold7 with a longer period of official software and security updates.
  • Physical Durability: The Galaxy S23 Ultra features a robust design with Gorilla Glass Victus 2 on both the front and back, coupled with an Armor Aluminum frame and an IP68 rating for dust and water resistance. The Galaxy Z Fold7, while also built with an Armor Aluminum frame and IPX8 water resistance, introduces the complexities of a foldable display and hinge mechanism. While each generation of the Z Fold series brings improvements in hinge design and Ultra Thin Glass (UTG) durability, the folding screen inherently presents a different set of long-term considerations compared to a traditional slab phone.
  • Repairability: Both devices offer a degree of repairability, though the intricate design of the Z Fold7, particularly its hinge and dual-screen setup, can make certain repairs more complex than on the S23 Ultra. Users seeking the longest possible software support will find the Z Fold7 more appealing, while those prioritizing a traditionally robust and less mechanically complex design might lean towards the S23 Ultra.

Year of Release

2023

2025

Compatible with latest Update

Yes

Yes

OS

Android

Android

Foldable

No

Yes

Performance

Both the Galaxy S23 Ultra and the Galaxy Z Fold7 are equipped with high-performance processors designed to handle demanding tasks, though the Z Fold7 benefits from a newer generation of silicon.

  • Processing Power: The Galaxy S23 Ultra features a powerful processor from early 2023, capable of running multiple applications simultaneously, handling graphics-intensive games, and processing complex tasks like 8K video editing smoothly. The Galaxy Z Fold7, released over two years later, incorporates a more advanced processor, offering incremental improvements in raw speed, graphical rendering, and energy efficiency. This means the Z Fold7 will generally offer a snappier experience and better performance headroom for future applications.
  • Multitasking and Responsiveness: The S23 Ultra provides a fluid experience for everyday use and heavy multitasking, supported by ample RAM options. The Z Fold7, with its larger foldable display, is specifically designed for enhanced multitasking, allowing users to run multiple apps side-by-side more effectively. Its newer processor and potentially higher RAM configurations further contribute to a highly responsive experience, especially when switching between applications or utilizing the larger screen for productivity.
  • Battery Behavior: The Galaxy S23 Ultra houses a substantial 5000 mAh battery, which, combined with its efficient processor and adaptive display, typically provides a full day of heavy use for many users. The Galaxy Z Fold7, while featuring a slightly smaller battery capacity (around 4400-4600 mAh, based on previous generations), compensates with a more power-efficient processor and optimized software for its dual-screen setup. Actual battery life will vary significantly based on usage patterns, particularly how often the larger inner display is utilized.

Memory (GB)

8 GB

12 GB

Screen quality

The screen experience is a primary distinguishing factor between these two devices, with the S23 Ultra offering a single, expansive display and the Z Fold7 providing a versatile dual-screen setup.

  • Display Technology and Clarity: The Galaxy S23 Ultra features a 6.8-inch Dynamic AMOLED 2X display with a high QHD+ resolution, delivering sharp images, deep blacks, and vibrant colors. The Galaxy Z Fold7 offers two Dynamic AMOLED 2X displays: a 6.2-inch cover screen and a larger 7.6-inch main foldable screen. Both screens on the Z Fold7 provide excellent clarity and color reproduction, though the main foldable display typically has a slightly lower pixel density than the S23 Ultra's single panel.
  • Brightness and Refresh Rate: Both devices boast adaptive refresh rates up to 120Hz, ensuring smooth scrolling and responsive interactions. The S23 Ultra's display can reach high peak brightness levels, making it highly visible even in direct sunlight. The Z Fold7's displays also offer strong brightness, with generational improvements likely enhancing outdoor visibility and overall viewing comfort on both its cover and main screens.
  • Viewing Experience: The S23 Ultra provides a traditional, immersive viewing experience on its large, flat display, ideal for media consumption and general smartphone use. The Z Fold7's main display, when unfolded, offers a tablet-like canvas, significantly enhancing productivity for tasks like document editing, multi-app usage, and immersive media viewing. The presence of a visible crease on the foldable screen, while improved with each generation, is a characteristic of the Z Fold7's design.

Resolution

1440 x 3088

1968 x 2184

Audiovisual

Both smartphones offer advanced camera systems, but they cater to slightly different photographic priorities and capabilities.

  • Main Camera System: The Galaxy S23 Ultra is renowned for its versatile camera array, featuring a high-resolution 200-megapixel main sensor, a 12-megapixel ultrawide lens, and two 10-megapixel telephoto lenses offering 3x and 10x optical zoom. This setup provides exceptional detail, flexibility, and long-range photographic capabilities. The Galaxy Z Fold7, while featuring a capable camera system (likely a 50-megapixel main sensor, 12-megapixel ultrawide, and a 10-megapixel 3x telephoto lens, building on previous generations), typically prioritizes the foldable form factor over matching the S-series Ultra's specialized zoom performance.
  • Photography Performance: In everyday lighting conditions, both devices capture detailed and vibrant photos. The S23 Ultra excels in capturing fine textures and distant subjects due to its high-megapixel main sensor and advanced telephoto lenses. The Z Fold7 offers strong performance for general photography and is capable of producing high-quality images, particularly with its main sensor. Low-light performance on both devices is robust, utilizing advanced processing to produce clear images with reduced noise.
  • Video Recording and Audio: Both smartphones are capable of recording high-resolution video, including 8K, with optical image stabilization ensuring steady footage. Microphone quality for calls and video recording is generally excellent on both, capturing clear audio. The S23 Ultra and Z Fold7 both feature stereo speakers, providing a rich audio experience for media consumption, though the Z Fold7's larger unfolded screen can enhance the overall multimedia experience.

Miscellaneous

Beyond core performance and display, several practical elements differentiate the user experience of these two devices.

  • Connectivity and Ports: Both the Galaxy S23 Ultra and the Galaxy Z Fold7 support the latest connectivity standards, including 5G for fast mobile data, Wi-Fi 6E (or newer Wi-Fi 7 on the Z Fold7) for high-speed wireless internet, and modern Bluetooth versions for accessory connections. Both devices utilize a USB-C port for charging and data transfer.
  • Biometric Security and Stylus: The S23 Ultra integrates an ultrasonic fingerprint sensor under its display and supports secure facial recognition. A key feature of the S23 Ultra is its integrated S Pen, offering precise input for notes, drawings, and navigation. The Z Fold7 also features an under-display fingerprint sensor and facial recognition. While the Z Fold7 supports S Pen input on its main foldable screen, the stylus is typically sold separately and is not integrated into the device's body.
  • Dimensions and Build Materials: The S23 Ultra is a substantial device, measuring 163.4 x 78.1 x 8.9 mm and weighing 234g, built with Gorilla Glass Victus 2 and an Armor Aluminum frame. The Z Fold7, when folded, is more compact but thicker, and when unfolded, it becomes a wider, thinner tablet-like device. It is also generally heavier than the S23 Ultra, reflecting its dual-screen and hinge mechanism. Its construction also uses Armor Aluminum and advanced glass materials, with the main screen featuring Ultra Thin Glass.

Weight

234 g

187 g

Screen size (in)

6.8

8

Mobile network

5G

5G

SIM card

Dual Physical SIM + eSIM

Dual Physical SIM + eSIM

Carrier compatibility

Unlocked

Unlocked

Connector

USB-C

USB-C

User sentiment for the Galaxy S23 Ultra often highlights its exceptional camera system, particularly its zoom capabilities, and the convenience of the integrated S Pen. Users frequently praise its long battery life and robust, traditional smartphone design. Some common criticisms might include its large size and weight for single-handed use. For the Galaxy Z Fold7, users typically appreciate the versatility of its foldable display, enabling a tablet-like experience for productivity and media consumption in a device that still fits in a pocket. The ability to multitask with multiple apps open simultaneously is a significant draw. Concerns sometimes revolve around the long-term durability of the folding screen and the visible crease, though these aspects see continuous improvement with each generation.

Users prioritizing an advanced, versatile camera system, extended battery life, and an integrated stylus in a traditional, durable smartphone form factor will find the Galaxy S23 Ultra well-suited to their needs. Conversely, users who value a large, immersive display for productivity, media, and advanced multitasking, and are willing to embrace the unique foldable form factor, will likely lean towards the Galaxy Z Fold7. Both devices represent premium smartphone experiences, but cater to different usage preferences. For those considering either device, exploring quality-assured refurbished options can be an eco-friendly alternative to extend the life cycle of these advanced technologies.

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