Galaxy A21s vs Galaxy S20 5G
Shop Samsung Galaxy
Galaxy A21s
Starting at
£60.24£219.00 new
Galaxy S20 5G
Starting at
£161.35£899.00 newWhat's the difference between the Galaxy A21s and Galaxy S20 5G?
Galaxy A21s vs S20 5G comes down to the RAM, battery and screen size. Refurbished, the Galaxy A21s starts at £60.24, £101.11 less than the Galaxy S20 5G.
Refurbished from
RAM
Battery
Screen size
Screen type
Main camera
- The Galaxy S20 5G has more RAM: 12 GB vs 3 GB.
- The Galaxy A21s has a bigger battery: 5000 mAh vs 4000 mAh.
- The Galaxy A21s has a bigger screen: 6.5 inch vs 6.2 inch.
Galaxy A21s vs Galaxy S20 5G specs
The Galaxy A21s and Galaxy S20 5G both came out in 2020 but serve different needs. The Galaxy A21s suits everyday tasks with its larger battery and bigger display, ideal if you want longer use between charges. The Galaxy S20 5G offers a sharper and more vibrant screen, more RAM, and 5G connectivity, fitting users who want faster performance, smoother multitasking, and quicker mobile internet. Camera choices differ too, with the A21s focusing on higher megapixels, while the S20 5G balances resolution with overall camera quality. Storage options and SIM setup also vary, letting you pick the phone that matches your priorities in size, speed, and network support.
Galaxy A21s vs Galaxy S20 5G price
Colour
Galaxy A21s vs Galaxy S20 5G battery life and software updates
Battery size and software updates affect how long you can use the phones and how current they stay. Both devices run Android and were released in 2020, so their software foundations are similar.
Battery Capacity
The Galaxy A21s has a 5000 mAh battery, which provides longer use between charges. This is useful if you need your phone to last through busy days without frequent recharging. The Galaxy S20 5G has a 4000 mAh battery, which still supports a full day of typical use but with less overall capacity than the A21s.
Battery
Fast charging
Foldable
Software updates
Year of release
Galaxy A21s vs Galaxy S20 5G performance
Chipset
RAM
Galaxy A21s vs Galaxy S20 5G screen
Screen quality influences how clear and vibrant your display looks. The Galaxy A21s and Galaxy S20 5G differ in resolution, size, and screen technology, which affects viewing experience for video, games, and daily use.
Resolution and Detail
The Galaxy S20 5G has a much higher resolution of 1440 x 3200, delivering sharper images and text. This is ideal if you watch high-definition videos or prefer crisp visuals. The Galaxy A21s has a 720 x 1600 resolution, suitable for everyday tasks but less detailed for fine visuals.
Screen Size
The Galaxy A21s has a 6.5 inch screen, offering more space to view content and type comfortably. The Galaxy S20 5G has a slightly smaller 6.2 inch screen, which may fit better in your hand or pocket while still providing a good viewing area.
Screen Type
The Galaxy S20 5G uses Dynamic AMOLED 2X technology, which provides vibrant colours and deep blacks. This suits users who want vivid and immersive displays. The Galaxy A21s uses PLS LCD, a solid screen type for general use but with less colour contrast and brightness than AMOLED.
Refresh rate
Resolution
Screen size
Screen type
Galaxy A21s vs Galaxy S20 5G camera
Camera quality and setup affect how your photos and video calls look. Front and main camera megapixels differ between the two phones, influencing detail and clarity.
Front Camera Megapixels
The Galaxy A21s has a 13 megapixel front camera, which captures detailed selfies and video calls. The Galaxy S20 5G offers a 10 megapixel front camera, which still produces clear images but with fewer megapixels than the A21s.
Main Camera Megapixels
The Galaxy A21s features a 48 megapixel main camera, suited for capturing detailed photos where high pixel count matters. The Galaxy S20 5G has a 12 megapixel main camera, which balances megapixels with other camera features to produce quality images.
Camera type
Front camera
Main camera
Galaxy A21s vs Galaxy S20 5G size and design
Other features include network options, SIM card setup, physical size, and storage choices. These details influence daily convenience, network speed, and how the phone fits in your hand or pocket.
Network and SIM Setup
The Galaxy A21s supports 4G mobile networks and uses a single physical SIM card. The Galaxy S20 5G supports faster 5G networks and includes dual physical SIM slots, useful if you want to manage two phone numbers or carriers.
Storage Options
The Galaxy A21s comes with 32GB or 64GB of storage, suitable for basic app and media storage. The Galaxy S20 5G offers higher storage options at 128GB or 256GB, which is better if you keep many apps, photos, or videos on your phone.
Size and Weight
The Galaxy A21s measures 163.7 mm tall, 75.3 mm wide, and 8.9 mm deep, weighing 192 g. The Galaxy S20 5G is slightly shorter at 151.7 mm tall, narrower at 69.1 mm wide, and 7.9 mm deep, weighing 163 g. The S20 5G's slimmer and lighter design suits those who prefer a more compact phone.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy A21s or Galaxy S20 5G: which should you buy?
Buy the Galaxy A21s if
- you want to spend less: it starts at £60.24, £101.11 less than the Galaxy S20 5G
- you want a bigger battery (5000 mAh vs 4000 mAh)
- you want a bigger screen (6.5 inch vs 6.2 inch)
Buy the Galaxy S20 5G if
- you want more RAM (12 GB vs 3 GB)
- you want an OLED screen
- you want 5G
What our customers say
Customers find the Galaxy A21s to be in great condition with reliable performance for everyday use. Many mention the phone looks like new and appreciate its larger screen and battery life. Some users report initial setup frustrations but generally feel the phone works well once running. The 48 megapixel main camera and 13 megapixel front camera meet the needs of those who want detailed photos at a lower price point. Storage options up to 64GB suit moderate media and app use.
The Galaxy S20 5G receives praise for its fast performance, clear screen, and good battery life. Customers highlight its smooth multitasking thanks to 12 GB of RAM and enjoy the sharper, vibrant Dynamic AMOLED 2X display. The dual SIM setup and 5G network compatibility appeal to users wanting flexible connectivity and faster internet. The phone's 12 megapixel main camera and 10 megapixel front camera provide quality photos suitable for most needs. Storage capacities up to 256GB support heavier app and media collections.
Overall, the Galaxy A21s suits those looking for a reliable, larger screened phone with long battery life for everyday tasks. The Galaxy S20 5G fits users who want higher performance, a premium screen, and faster mobile network options.
Galaxy A21s vs Galaxy S20 5G FAQs
Galaxy A21s vs S20 5G comes down to the RAM, battery and screen size. The Galaxy S20 5G has more RAM: 12 GB vs 3 GB. The Galaxy A21s has a bigger battery: 5000 mAh vs 4000 mAh.
The Galaxy A21s is cheaper refurbished, from £60.24 compared with £161.35 for the Galaxy S20 5G.
The Galaxy A21s has a bigger battery: 5000 mAh vs 4000 mAh.
The Galaxy A21s has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
The Galaxy A21s no longer gets updates. Updates for the Galaxy S20 5G ended in Mar 2025.
Refurbished, the Galaxy A21s comes in 32GB and 64GB, and the Galaxy S20 5G in 128GB.
