Galaxy S21 Ultra 5G vs Motorola Edge 20
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Galaxy S21 Ultra 5G
Starting at
£268.86£1,316.00 new
Motorola Edge 20
Starting at
£160.00What's the difference between the Galaxy S21 Ultra 5G and Motorola Edge 20?
Galaxy S21 Ultra 5G vs Motorola Edge 20 comes down to the chipset, RAM and battery. Refurbished, the Motorola Edge 20 starts at £160, £108.86 less than the Galaxy S21 Ultra 5G.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 Ultra 5G, Qualcomm SM7325 Snapdragon 778G 5G (6 nm) on the Motorola Edge 20.
- The Galaxy S21 Ultra 5G has more RAM: 12 GB vs 8 GB.
- The Galaxy S21 Ultra 5G has a bigger battery: 5000 mAh vs 4000 mAh.
Galaxy S21 Ultra 5G vs Motorola Edge 20 specs
The Galaxy S21 Ultra 5G and Motorola Edge 20 both come from 2021 and offer strong Android experiences with 5G connectivity. It also has more storage options and a higher megapixel count on the front camera. The Motorola Edge 20 fits well if you prefer a lighter phone with a higher screen refresh rate and a slightly thinner design. It offers a dual physical SIM setup, which suits users managing two physical numbers. Both phones share the same main camera megapixels and are unlocked for flexible carrier use.
Galaxy S21 Ultra 5G vs Motorola Edge 20 price
Colour
Storage
Galaxy S21 Ultra 5G vs Motorola Edge 20 battery life and software updates
Battery capacity and software updates shape how long a phone lasts daily and over time.
Battery Capacity
The Galaxy S21 Ultra 5G has a 5000 mAh battery, which is well suited for long days of use without frequent charging. This makes it a good choice if you often use power-intensive apps or are away from a charger for extended periods. The Motorola Edge 20 offers a 4000 mAh battery, which keeps everyday use going smoothly and suits users with moderate daily phone activity.
Software Updates
The Motorola Edge 20 does not have this compatibility, so its software remains as initially installed.
Battery
Foldable
Ip rating
Software updates
Wireless charging
Year of release
Galaxy S21 Ultra 5G vs Motorola Edge 20 performance
Performance depends on the chipset, RAM, and storage options, which affect multitasking, app responsiveness, and how well the device handles demanding tasks.
Processor Options
The Galaxy S21 Ultra 5G comes with either the Exynos 2100 or Snapdragon 888 chipsets built on a 5 nm process, suited for heavy multitasking, gaming, and demanding apps. The Motorola Edge 20 uses the Snapdragon 778G built on a 6 nm process, which is designed for smooth everyday use and moderate multitasking.
Memory Capacity
With 12 GB of RAM, the Galaxy S21 Ultra 5G can keep more apps open at once and handle more intensive workflows. The Motorola Edge 20 has 8 GB of RAM, which handles regular multitasking and everyday apps effectively.
Storage Choices
The Galaxy S21 Ultra 5G offers multiple storage options from 128GB to 512GB, giving you room for large photo and video libraries or app collections. The Motorola Edge 20 is available with 128GB of storage, suitable for typical use and media storage.
Chipset
RAM
Galaxy S21 Ultra 5G vs Motorola Edge 20 screen
Screen quality influences viewing comfort, sharpness, and smoothness, which matter for video, gaming, and reading.
Refresh Rate
The Motorola Edge 20 features a 144 Hz refresh rate, providing extra smoothness when scrolling or gaming. This can make animations and motion appear more fluid. The Galaxy S21 Ultra 5G has a 120 Hz refresh rate, which also delivers smooth visuals and is well suited for most use cases.
Resolution and Size
The Galaxy S21 Ultra 5G has a higher resolution at 1440 x 3200 pixels on a 6.8 inch screen, offering sharper detail and more screen space for content. The Motorola Edge 20 has a 1080 x 2400 resolution on a slightly smaller 6.7 inch screen, which suits users who prioritise screen smoothness over maximum sharpness.
Screen Type
The Galaxy S21 Ultra 5G uses a Dynamic AMOLED 2X display, known for vibrant colours and deep blacks. The Motorola Edge 20 uses an OLED screen, which also delivers good contrast and colour accuracy.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S21 Ultra 5G vs Motorola Edge 20 camera
Camera specifications affect photo and video quality, especially when capturing detail and selfies.
Front Camera Detail
The Galaxy S21 Ultra 5G has a 40 megapixel front camera, which can capture more detail for selfies and video calls, making it suitable if you value high-resolution front-facing images. The Motorola Edge 20 has a 32 megapixel front camera, which handles everyday selfies and video chats smoothly.
Main Camera Resolution
Both phones have a 108 megapixel main camera, offering high-resolution photos with plenty of detail for most photography needs.
Camera type
Front camera
Main camera
Galaxy S21 Ultra 5G vs Motorola Edge 20 size and design
Other practical details include size, weight, SIM options, and connectivity, which influence comfort and daily use.
Dimensions and Weight
The Galaxy S21 Ultra 5G measures 165.1 mm in height, 75.6 mm in width, and 8.9 mm in depth, weighing 227 g. This larger and heavier build suits those comfortable with a more substantial phone. The Motorola Edge 20 is slightly smaller at 163 mm tall, 76 mm wide, and 7 mm thick, and weighs 163 g, making it easier to handle for users who prefer a lighter device.
SIM Card Options
The Galaxy S21 Ultra 5G offers one physical SIM slot plus eSIM support, which is ideal if you want to combine a physical and a digital SIM. The Motorola Edge 20 provides dual physical SIM slots, useful if you prefer two physical SIM cards at once for managing separate numbers.
Carrier and Network
Both phones are unlocked and support 5G networks, giving you flexibility in choosing your mobile provider and access to faster data speeds.
Charging Connector
The Galaxy S21 Ultra 5G uses a USB-C connector, while the Motorola Edge 20 uses a USB Type-C connector. Both are common standards for charging and data transfer.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy S21 Ultra 5G or Motorola Edge 20: which should you buy?
Buy the Galaxy S21 Ultra 5G if
- you want more RAM (12 GB vs 8 GB)
- you want a bigger battery (5000 mAh vs 4000 mAh)
- you want a higher-resolution front camera (40 megapixels vs 32 megapixels)
Buy the Motorola Edge 20 if
- you want to spend less: it starts at £160, £108.86 less than the Galaxy S21 Ultra 5G
- you want a smoother screen (144 Hz vs 120 Hz)
- you want a lighter build (163 g vs 227 g)
Galaxy S21 Ultra 5G vs Motorola Edge 20 FAQs
Galaxy S21 Ultra 5G vs Motorola Edge 20 comes down to the chipset, RAM and battery. Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 Ultra 5G, Qualcomm SM7325 Snapdragon 778G 5G (6 nm) on the Motorola Edge 20. The Galaxy S21 Ultra 5G has more RAM: 12 GB vs 8 GB.
The Motorola Edge 20 is cheaper refurbished, from £160 compared with £268.86 for the Galaxy S21 Ultra 5G.
The Galaxy S21 Ultra 5G has a bigger battery: 5000 mAh vs 4000 mAh.
Both have the same main camera: 108 megapixels.
Updates for the Galaxy S21 Ultra 5G ended in Feb 2026. We don't have published update dates for the Motorola Edge 20.
Refurbished, the Galaxy S21 Ultra 5G comes in 128GB, 256GB and 512GB, and the Motorola Edge 20 in 128GB.
