Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G
Shop Samsung Galaxy
Galaxy S20 Ultra 5G
Starting at
£233.80£1,220.00 new
Galaxy S21 Ultra 5G
Starting at
£268.86£1,316.00 newWhat's the difference between the Galaxy S20 Ultra 5G and Galaxy S21 Ultra 5G?
Galaxy S20 Ultra 5G vs S21 Ultra 5G comes down to the screen size, software updates and weight. Refurbished, the Galaxy S20 Ultra 5G starts at £233.80, £35.06 less than the Galaxy S21 Ultra 5G. The Galaxy S21 Ultra 5G is the newer model, released in 2021.
Refurbished from
Screen size
Software updates
Weight
SD card slot
- Screen size: 6.9 inch on the Galaxy S20 Ultra 5G, 6.8 inch on the Galaxy S21 Ultra 5G.
- Software updates: Ended Mar 2025 on the Galaxy S20 Ultra 5G, Ended Feb 2026 on the Galaxy S21 Ultra 5G.
- The Galaxy S20 Ultra 5G has a lighter build: 222 g vs 227 g.
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G specs
The Galaxy S20 Ultra 5G and Galaxy S21 Ultra 5G are closely matched in many key areas like battery size, camera, RAM, and screen resolution. The S21 Ultra offers more storage options, appealing to those needing extra space without using a memory card. The S20 Ultra includes a microSDXC slot for flexible storage expansion. The S20 Ultra is slightly larger and lighter, with a bigger screen that suits media viewing. Buyers wanting higher storage choices may prefer the S21 Ultra, while those wanting a larger screen and expandable storage might find the S20 Ultra a better fit.
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G price
Colour
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G battery life and software updates
Durability covers battery size, software updates, and basic design features that affect how the phones hold up over time. Both phones match on battery capacity and operating system, but they differ in software support and storage expansion options.
Battery Capacity
Both the Galaxy S20 Ultra 5G and Galaxy S21 Ultra 5G have a 5000 mAh battery. This means they offer similar potential battery life, suitable for a full day of typical use. If battery size is your main concern, either phone will meet your needs.
Storage Expansion
The Galaxy S20 Ultra 5G includes a microSDXC slot, allowing you to increase storage with a memory card. This suits users who prefer flexible storage options or want to add media files easily. The Galaxy S21 Ultra 5G does not have a microSD slot, so users rely on internal storage alone.
Battery
Fast charging
Foldable
Ip rating
Software updates
Wireless charging
Year of release
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G performance
Chipset
RAM
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G screen
Screen quality is key for enjoying videos and apps. Both models share many features, but their screen size differs slightly, which can influence your viewing experience and handling.
Screen Size
The Galaxy S20 Ultra 5G has a 6.9 inch screen, slightly larger than the Galaxy S21 Ultra 5G's 6.8 inch display. The bigger screen suits users who want more room for watching videos or multitasking. The S21 Ultra's slightly smaller size may feel easier to hold for some.
Display Technology and Resolution
Both phones use Dynamic AMOLED 2X screens with a resolution of 1440 x 3200 pixels and a refresh rate of 120 Hz. This means they deliver sharp visuals, vibrant colours, and smooth motion, making either a good choice for media consumption and gaming.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G camera
Camera and front-facing camera capabilities are the same across both phones, offering high resolution and multiple lenses to cover different shooting needs.
Camera Setup
Both the Galaxy S20 Ultra 5G and Galaxy S21 Ultra 5G feature a quadruple rear camera array with a 108 megapixel main sensor and a 40 megapixel front camera. This setup is suitable for capturing detailed photos and sharp selfies, supporting a variety of shooting styles.
Camera type
Front camera
Main camera
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G size and design
Other practical differences include physical size, weight, storage options, and connectivity features that influence day-to-day use and personal preference.
Physical Dimensions and Weight
The Galaxy S20 Ultra 5G measures 166.9 mm tall, 76 mm wide, and 8.8 mm deep, weighing 222 g. The Galaxy S21 Ultra 5G is 165.1 mm tall, 75.6 mm wide, 8.9 mm deep, and weighs 227 g. If you prefer a larger screen with a lighter phone, the S20 Ultra fits well. For a slightly more compact feel, the S21 Ultra is a good choice.
Storage Options
The Galaxy S20 Ultra 5G is stocked with 128GB of internal storage. The Galaxy S21 Ultra 5G offers more variety, with 128GB, 256GB, and 512GB options. If you want more built-in storage without adding a memory card, the S21 Ultra provides greater flexibility.
Carrier and SIM
Both phones are unlocked and support 5G networks. They use a combination of physical SIM and eSIM, offering flexible carrier options.
Connector Type
Both devices use USB-C connectors, which are common and support fast charging and data transfer with compatible accessories.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy S20 Ultra 5G or Galaxy S21 Ultra 5G: which should you buy?
Buy the Galaxy S20 Ultra 5G if
- you want to spend less: it starts at £233.80, £35.06 less than the Galaxy S21 Ultra 5G
- you want a lighter build (222 g vs 227 g)
- you want a memory card slot
Buy the Galaxy S21 Ultra 5G if
- you want the newer model (2021)
What our customers say
Customers who bought the Galaxy S20 Ultra 5G appreciate its excellent condition and spotless appearance, often noting it looks like a new phone. They highlight the clear screen resolution and the 12GB RAM as strong points for frequent users. Battery life receives mixed comments, with some wishing it lasted longer, though others are pleased with its performance. Users value the large screen and reliable photo quality, making it a good choice for those who want a spacious display and solid camera performance.
Galaxy S21 Ultra 5G customers frequently comment on the phone's near-new condition even in good condition listings. The phone's speed and reliability stand out, with many happy to find a high-spec device at a lower cost. Some users mention the phone feels compact and well-built, while others are impressed by the range of storage options. Overall the S21 Ultra is praised for its performance and up-to-date software.
The Galaxy S20 Ultra 5G suits buyers looking for a large screen and expandable storage. The Galaxy S21 Ultra 5G fits those wanting more internal storage choices and the latest software updates. Both phones satisfy customers seeking premium refurbished devices with strong cameras and solid performance.
Galaxy S20 Ultra 5G vs Galaxy S21 Ultra 5G FAQs
Galaxy S20 Ultra 5G vs S21 Ultra 5G comes down to the screen size, software updates and weight. Screen size: 6.9 inch on the Galaxy S20 Ultra 5G, 6.8 inch on the Galaxy S21 Ultra 5G. Software updates: Ended Mar 2025 on the Galaxy S20 Ultra 5G, Ended Feb 2026 on the Galaxy S21 Ultra 5G.
The Galaxy S20 Ultra 5G is cheaper refurbished, from £233.80 compared with £268.86 for the Galaxy S21 Ultra 5G.
Both have the same battery: 5000 mAh.
Both have the same main camera: 108 megapixels.
Updates for the Galaxy S20 Ultra 5G ended in Mar 2025. Updates for the Galaxy S21 Ultra 5G ended in Feb 2026.
The Galaxy S21 Ultra 5G is newer, but the main specs we compare are the same. Refurbished, it costs £35.06 more (from £268.86 vs £233.80).
Refurbished, the Galaxy S20 Ultra 5G comes in 128GB, and the Galaxy S21 Ultra 5G in 128GB, 256GB and 512GB.
