Galaxy S20 Ultra vs Galaxy Z Fold3 5G
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Galaxy S20 Ultra
Starting at
£269.45£1,199.99 new
Galaxy Z Fold3 5G
Starting at
£341.28What's the difference between the Galaxy S20 Ultra and Galaxy Z Fold3 5G?
Galaxy S20 Ultra vs Z Fold3 5G comes down to the battery, screen size and screen type. Refurbished, the Galaxy S20 Ultra starts at £269.45, £71.83 less than the Galaxy Z Fold3 5G. The Galaxy Z Fold3 5G is the newer model, released in 2021.
Refurbished from
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Screen size
Screen type
Software updates
Mobile network
- The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 4400 mAh.
- The Galaxy Z Fold3 5G has a bigger screen: 7.6 inch vs 6.9 inch.
- Screen type: Dynamic AMOLED 2X on the Galaxy S20 Ultra, Foldable Dynamic AMOLED 2X on the Galaxy Z Fold3 5G.
Galaxy S20 Ultra vs Galaxy Z Fold3 5G specs
The Galaxy S20 Ultra and Galaxy Z Fold3 5G each offer distinct advantages depending on what you value most. The Galaxy S20 Ultra has a larger battery capacity and supports expandable storage via microSDXC, making it suitable if you want longer battery life and extra space for files. The Galaxy Z Fold3 5G features a bigger, foldable screen that is better for multitasking and media consumption, plus 5G support for faster mobile networks. It also offers higher storage options and a combination of physical SIM and eSIM for flexible connectivity. Your choice depends on whether you prioritise battery endurance and storage expansion or a larger, foldable display and 5G connectivity.
Galaxy S20 Ultra vs Galaxy Z Fold3 5G price
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- BlackSold out
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- 256GBSold out
- 512GBSold out
Galaxy S20 Ultra vs Galaxy Z Fold3 5G battery life and software updates
Durability here focuses on battery size, operating system version, and device release year. These aspects influence daily use for battery endurance and software experience.
Battery Capacity
The Galaxy S20 Ultra has a 5000 mAh battery, which is larger than the Galaxy Z Fold3 5G's 4400 mAh. This means the S20 Ultra can provide longer battery life between charges, especially if you use your phone heavily throughout the day. The Z Fold3 5G's battery size suits users who want good endurance but also use a foldable display.
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Year of release
Galaxy S20 Ultra vs Galaxy Z Fold3 5G performance
Chipset
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Galaxy S20 Ultra vs Galaxy Z Fold3 5G screen
Screen quality differences focus on size, resolution, type, and refresh rate, affecting how you view content and interact with your device.
Screen Size
The Galaxy Z Fold3 5G has a larger 7.6 inch screen compared to the Galaxy S20 Ultra's 6.9 inch display. This extra screen size provides more room for watching videos, browsing, and multitasking, appealing to users who prefer a tablet-like experience in a phone.
Screen Resolution
The Z Fold3 5G offers a resolution of 1768 x 2208, which is different in shape and pixel count from the Galaxy S20 Ultra's 1440 x 3200. This means the Z Fold3 5G's display focuses on width for its foldable design, while the S20 Ultra balances width and height for a traditional tall display. The resolution suits each phone's screen size and design approach.
Screen Type
Both devices use Dynamic AMOLED 2X technology, but the Galaxy Z Fold3 5G features a foldable version of this screen type. This foldable screen is designed for flexible use, allowing you to open the phone for a larger display area, which benefits multitasking and immersive viewing.
Refresh Rate
Both the Galaxy S20 Ultra and Galaxy Z Fold3 5G have a 120 Hz refresh rate. This means both screens offer smooth scrolling and animations, which are noticeable when gaming or navigating the interface.
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Galaxy S20 Ultra vs Galaxy Z Fold3 5G camera
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Galaxy S20 Ultra vs Galaxy Z Fold3 5G size and design
This section highlights connectivity, storage, SIM options, and weight, all of which affect day-to-day convenience and device handling.
Mobile Network
The Galaxy Z Fold3 5G supports 5G networks, offering faster mobile data speeds when connected to compatible networks. The Galaxy S20 Ultra operates on 4G, which provides reliable connectivity but at lower maximum speeds compared to 5G. This suits users who want faster internet on the move.
Storage Options
The Galaxy Z Fold3 5G is available in larger storage sizes of 256GB and 512GB. This is ideal if you store many apps, photos, or videos without relying on external storage. The Galaxy S20 Ultra comes with 128GB, which still offers ample space for everyday use, especially when combined with its microSDXC slot for storage expansion.
SIM Card Setup
The Galaxy S20 Ultra supports dual physical SIM cards, allowing two separate SIMs to be used at once. The Galaxy Z Fold3 5G has one physical SIM and one eSIM, providing flexibility to use a physical SIM and a digital SIM profile simultaneously. This can benefit users who want to separate work and personal lines without carrying multiple SIM cards.
Weight
The Galaxy S20 Ultra weighs 222 g, making it lighter than the Galaxy Z Fold3 5G, which weighs 271 g. The lighter weight of the S20 Ultra may suit users who prefer a less heavy phone for daily use and ease of handling.
Expandable Storage
The Galaxy S20 Ultra includes a microSDXC slot, which allows you to add extra storage with a memory card. This is useful if you want to increase storage capacity over time without choosing a higher internal storage model.
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Galaxy S20 Ultra or Galaxy Z Fold3 5G: which should you buy?
Buy the Galaxy S20 Ultra if
- you want to spend less: it starts at £269.45, £71.83 less than the Galaxy Z Fold3 5G
- you want a bigger battery (5000 mAh vs 4400 mAh)
- you want a lighter build (222 g vs 271 g)
Buy the Galaxy Z Fold3 5G if
- you want a bigger screen (7.6 inch vs 6.9 inch)
- you want 5G
What our customers say
Customers who chose the Galaxy S20 Ultra often mention that the phone looks like new and works well, with many expressing satisfaction over battery life and performance. Some note that it loads apps quickly and remains reliable even after two years of use. A few users appreciate the good condition and would recommend the phone for its camera and wireless charging features. There is a mix of very positive feedback and occasional technical issues related to screen and account setup, but most find it a good purchase for their needs.
Reviews for the Galaxy Z Fold3 5G highlight the device's condition as very good or like new, with users enjoying the phone's ease of use and good performance. The foldable design appeals to those who value a large screen, and many customers are happy with the quality. Some mention that the battery does not last as long as previous phones they had, but overall satisfaction with the device is high. Setup is described as straightforward.
Overall, the Galaxy S20 Ultra suits users who want strong battery life, expandable storage, and a lighter phone, while the Galaxy Z Fold3 5G is preferred by those who value a larger foldable screen, 5G connectivity, and higher internal storage options.
Galaxy S20 Ultra vs Galaxy Z Fold3 5G FAQs
Galaxy S20 Ultra vs Z Fold3 5G comes down to the battery, screen size and screen type. The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 4400 mAh. The Galaxy Z Fold3 5G has a bigger screen: 7.6 inch vs 6.9 inch.
The Galaxy S20 Ultra is cheaper refurbished, from £269.45 compared with £341.28 for the Galaxy Z Fold3 5G.
The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 4400 mAh.
Updates for the Galaxy S20 Ultra ended in Mar 2025. Updates for the Galaxy Z Fold3 5G ended in Sep 2026.
The Galaxy Z Fold3 5G adds a bigger screen (7.6 inch vs 6.9 inch) and 5G. Refurbished, it costs £71.83 more (from £341.28 vs £269.45).
Refurbished, the Galaxy S20 Ultra comes in 128GB, and the Galaxy Z Fold3 5G in 256GB and 512GB.
