Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G
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Galaxy S20 Ultra 5G
Starting at
£233.80£1,220.00 new
Galaxy Z Fold3 5G
Starting at
£341.28What's the difference between the Galaxy S20 Ultra 5G and Galaxy Z Fold3 5G?
Galaxy S20 Ultra 5G vs Z Fold3 5G comes down to the battery, screen size and screen type. Refurbished, the Galaxy S20 Ultra 5G starts at £233.80, £107.48 less than the Galaxy Z Fold3 5G. The Galaxy Z Fold3 5G is the newer model, released in 2021.
Refurbished from
Battery
Screen size
Screen type
Software updates
Weight
- The Galaxy S20 Ultra 5G 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 5G, Foldable Dynamic AMOLED 2X on the Galaxy Z Fold3 5G.
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G specs
The Galaxy S20 Ultra 5G and Galaxy Z Fold3 5G each offer distinct strengths for different users. The Galaxy S20 Ultra 5G suits those who prioritise a very large, high-resolution screen on a traditional smartphone format and value a bigger battery for longer use between charges. It also supports expandable storage via microSDXC. The Galaxy Z Fold3 5G is built for users who want a larger foldable screen that opens up for more space, combined with higher internal storage options. Its weight is noticeably higher, which is worth considering if you prefer a lighter device. Both share the same RAM and support 5G, offering strong performance and connectivity.
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G price
Colour
- BlackSold out
- GreenSold out
- SilverSold out
Storage
- 256GBSold out
- 512GBSold out
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G battery life and software updates
Battery, operating system, and release year are important for daily use and longevity. The Galaxy S20 Ultra 5G and Galaxy Z Fold3 5G differ in battery capacity and software version.
Battery Capacity
The Galaxy S20 Ultra 5G has a 5000 mAh battery, which provides more capacity for longer use between charges. This suits users who often need extended battery life on a single charge. The Galaxy Z Fold3 5G has a 4400 mAh battery, which still supports a full day of use for many but may require more frequent charging depending on usage.
Operating System Version
The Galaxy S20 Ultra 5G runs Android.
Release Year
The Galaxy S20 Ultra 5G was released in 2020, while the Galaxy Z Fold3 5G came out in 2021.
Battery
Fast charging
Foldable
OS at launch
Software updates
Year of release
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G performance
Chipset
RAM
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G screen
Screen size, resolution, type and refresh rate affect how you experience media, gaming and everyday use. Both devices share a 120 Hz refresh rate for smooth visuals but differ in screen size and resolution.
Screen Size
The Galaxy Z Fold3 5G features a 7.6 inch screen, making it roomier for watching videos, reading or multitasking. This suits users who want more screen space in a single device. The Galaxy S20 Ultra 5G has a 6.9 inch screen, still large and comfortable for most multimedia and gaming tasks.
Screen Resolution
The Galaxy S20 Ultra 5G offers a resolution of 1440 x 3200 pixels, which delivers a very sharp and detailed display. The Galaxy Z Fold3 5G has a resolution of 1768 x 2208 pixels, which is wider but with fewer vertical pixels, matching its foldable screen format. Both provide clear images but in different screen shapes.
Screen Type
The Galaxy S20 Ultra 5G uses Dynamic AMOLED 2X, a high-quality display technology for vivid colours and deep contrast. The Galaxy Z Fold3 5G uses Foldable Dynamic AMOLED 2X, designed to support its folding mechanism while maintaining vibrant and bright visuals. Users who want a foldable screen experience will find the Galaxy Z Fold3 5G unique.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G camera
Camera type
Front camera
Main camera
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G size and design
Other features like storage, network support, SIM options and weight can affect daily convenience and device handling.
Storage Options
The Galaxy Z Fold3 5G is available in larger storage capacities of 256GB and 512GB, which suits users who store many files, apps or media. The Galaxy S20 Ultra 5G comes with 128GB storage but includes a microSDXC slot for expandable storage, ideal if you prefer adding memory cards.
Weight Differences
The Galaxy Z Fold3 5G weighs 271 g, which is heavier and may be noticeable if you hold your phone for long periods. The Galaxy S20 Ultra 5G weighs 222 g, making it lighter and potentially more comfortable for extended use.
SIM and Network Support
Both phones support 5G connectivity and come unlocked, allowing use with any compatible network. Both use a combination of a physical SIM and eSIM, giving flexibility to manage multiple numbers or plans.
Connector Type
Both devices use a USB-C connector. The Galaxy S20 Ultra 5G states USB-C, while the Galaxy Z Fold3 5G specifies USB Type-C. Both support modern charging and accessories.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy S20 Ultra 5G or Galaxy Z Fold3 5G: which should you buy?
Buy the Galaxy S20 Ultra 5G if
- you want to spend less: it starts at £233.80, £107.48 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 the newer model (2021)
What our customers say
Customers who bought the Galaxy S20 Ultra 5G appreciate its excellent condition and say it looks like new. Many mention the large, clear screen and 12GB RAM as well suited to their needs, especially for media and multitasking. Some note the battery life is good, with a few wishing it lasted longer. The device is described as reliable and well-performing for heavy use.
Reviews for the Galaxy Z Fold3 5G highlight its good condition and ease of setup. Users like the phone's quality and larger foldable screen, which provides extra space. Some mention the battery does not last as long as previous devices they owned but overall describe the phone as working well and being enjoyable to use.
Together, these devices suit different users: the Galaxy S20 Ultra 5G is a traditional smartphone with a large, sharp screen and expandable storage, ideal for everyday use with strong battery life. The Galaxy Z Fold3 5G fits those who want a foldable design with a bigger display area and more internal storage, while accepting a heavier device and a smaller battery.
Galaxy S20 Ultra 5G vs Galaxy Z Fold3 5G FAQs
Galaxy S20 Ultra 5G vs Z Fold3 5G comes down to the battery, screen size and screen type. The Galaxy S20 Ultra 5G 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 5G is cheaper refurbished, from £233.80 compared with £341.28 for the Galaxy Z Fold3 5G.
The Galaxy S20 Ultra 5G has a bigger battery: 5000 mAh vs 4400 mAh.
Updates for the Galaxy S20 Ultra 5G 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). Refurbished, it costs £107.48 more (from £341.28 vs £233.80).
Refurbished, the Galaxy S20 Ultra 5G comes in 128GB, and the Galaxy Z Fold3 5G in 256GB and 512GB.
