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Galaxy A21s vs Galaxy Note20 Ultra 5G

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Galaxy A21s

Starting at

£60.24£219.00 new
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Galaxy Note20 Ultra 5G

Starting at

£299.00
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(171 reviews)
(404 reviews)

What's the difference between the Galaxy A21s and Galaxy Note20 Ultra 5G?

Galaxy A21s vs Note20 Ultra 5G comes down to the RAM, battery and screen size. Refurbished, the Galaxy A21s starts at £60.24, £238.76 less than the Galaxy Note20 Ultra 5G.

Refurbished from

£60.24£299

RAM

3 GB12 GB

Battery

5000 mAh4500 mAh

Screen size

6.5 inch6.9 inch

Screen type

PLS LCDDynamic AMOLED 2X

Main camera

48 megapixels108 megapixels
  • The Galaxy Note20 Ultra 5G has more RAM: 12 GB vs 3 GB.
  • The Galaxy A21s has a bigger battery: 5000 mAh vs 4500 mAh.
  • The Galaxy Note20 Ultra 5G has a bigger screen: 6.9 inch vs 6.5 inch.

Galaxy A21s vs Galaxy Note20 Ultra 5G specs

The Galaxy A21s and Galaxy Note20 Ultra 5G both arrived in 2020 but cater to different needs. The Galaxy A21s suits everyday use with a large 5000 mAh battery and simpler features, ideal for those who want a reliable phone with good battery life and straightforward performance. The Galaxy Note20 Ultra 5G offers a bigger, higher-resolution Dynamic AMOLED screen and a powerful 12 GB RAM with larger storage options, making it a strong choice for users who want a spacious display, detailed photos, and multitasking ability. It also supports 5G and offers both a physical SIM and eSIM, which can suit users looking for more flexible network options. Each device fits a different user preference depending on what matters most in daily use.

Galaxy A21s vs Galaxy Note20 Ultra 5G price

Storage

  • 128GBSold out
  • 256GBSold out
  • 512GBSold out

Galaxy A21s vs Galaxy Note20 Ultra 5G battery life and software updates

Battery capacity and software updates play a role in how long a phone lasts between charges and stays current.

Battery Size

The Galaxy A21s has a larger 5000 mAh battery, which can support longer use between charges. This suits users who prioritise extended battery life for everyday tasks. The Galaxy Note20 Ultra 5G has a 4500 mAh battery, which is slightly smaller but still substantial for most daily needs.

Battery

5000 mAh4500 mAh

Fast charging

15 W25 W

Foldable

NoNo

Software updates

EndedEnded Sep 2025

Wireless charging

N/AYes

Year of release

20202020

Galaxy A21s vs Galaxy Note20 Ultra 5G performance

Chipset

Exynos 850N/A

RAM

3 GB12 GB

Galaxy A21s vs Galaxy Note20 Ultra 5G screen

Screen size and quality influence how enjoyable the phone is for watching videos, browsing, and gaming. These two devices differ significantly in resolution, size, and display technology.

Screen Size

The Galaxy Note20 Ultra 5G features a larger 6.9 inch screen, which provides more room for media and multitasking. The Galaxy A21s has a 6.5 inch screen that suits users who prefer a smaller, more manageable size.

Resolution

With a 1440 x 3088 resolution, the Galaxy Note20 Ultra 5G offers a sharper and more detailed display, ideal for users who watch high-definition content or work with detailed visuals. The Galaxy A21s has a 720 x 1600 resolution that works well for general use and basic media viewing.

Screen Type

The Galaxy Note20 Ultra 5G uses Dynamic AMOLED 2X technology, delivering vibrant colours and deeper contrast. The Galaxy A21s has a PLS LCD screen, which provides reliable colour and brightness but with less contrast and vibrancy compared to AMOLED.

Refresh rate

N/A120 Hz

Resolution

720 x 16001440 x 3088

Screen size

6.5 inch6.9 inch

Screen type

PLS LCDDynamic AMOLED 2X

Galaxy A21s vs Galaxy Note20 Ultra 5G camera

Camera quality plays an important part for users who take photos or video calls. These two devices differ in megapixel counts for both front and main cameras.

Front Camera

The Galaxy A21s has a 13 megapixel front camera, which suits users who want clear selfies and video calls. The Galaxy Note20 Ultra 5G has a 10 megapixel front camera, providing good detail for video chats and selfies.

Main Camera

The Galaxy Note20 Ultra 5G offers a 108 megapixel main camera, capturing exceptionally detailed photos for users who prioritise photography. The Galaxy A21s has a 48 megapixel main camera, which works well for everyday photo needs and social media sharing.

Camera type

N/ATriple (3x)

Front camera

13 megapixels10 megapixels

Main camera

48 megapixels108 megapixels

Galaxy A21s vs Galaxy Note20 Ultra 5G size and design

Other features such as network compatibility, size, and storage options affect how each phone fits into your daily life and usage preferences.

Network Support

The Galaxy Note20 Ultra 5G supports 5G networks, which suits users who want faster mobile data where 5G is available. The Galaxy A21s supports 4G, which is suitable for reliable everyday connectivity.

SIM Card Options

The Galaxy Note20 Ultra 5G offers both a physical SIM and eSIM, allowing flexible network use and easier switching between carriers. The Galaxy A21s uses a physical SIM only, which meets typical SIM card needs.

Storage Capacity

The Galaxy Note20 Ultra 5G comes in larger storage options of 128GB, 256GB, and 512GB, appealing to users who need space for apps, media, and files. The Galaxy A21s is available in 32GB and 64GB storage, which suits lighter users or those who use cloud services.

Size and Weight

The Galaxy Note20 Ultra 5G is larger at 164.8 mm tall, 77.2 mm wide, and weighs 208 g, suitable for users comfortable with a bigger, heavier phone. The Galaxy A21s measures 163.7 mm tall, 75.3 mm wide, and weighs 192 g, fitting those who prefer a smaller, lighter device.

Carrier compatibility

UnlockedUnlocked

Connector

N/AUSB-C

Depth

8.9 mm8.1 mm

Height

163.7 mm164.8 mm

Mobile network

4G5G

Release date

19 June 202021 August 2020

SD card slot

microSDXCmicroSDXC

SIM card

Physical SIMPhysical SIM + eSIM

Weight

192 g208 g

Width

75.3 mm77.2 mm

Galaxy A21s or Galaxy Note20 Ultra 5G: which should you buy?

Buy the Galaxy A21s if

  • you want to spend less: it starts at £60.24, £238.76 less than the Galaxy Note20 Ultra 5G
  • you want a bigger battery (5000 mAh vs 4500 mAh)
  • you want a higher-resolution front camera (13 megapixels vs 10 megapixels)

Buy the Galaxy Note20 Ultra 5G if

  • you want more RAM (12 GB vs 3 GB)
  • you want a bigger screen (6.9 inch vs 6.5 inch)
  • you want an OLED screen

What our customers say

Customers describe the Galaxy A21s as a phone that looks like new and works well. Many appreciate its condition and battery life for everyday use. Some users mention that the phone works fine after initial setup and is a reliable choice for simple needs. The 64GB and 32GB models meet basic storage demands. The front and main cameras receive positive comments for general photography. Overall, the Galaxy A21s suits users who want a dependable phone with good battery capacity and straightforward features.

The Galaxy Note20 Ultra 5G receives praise for its large screen and high storage options, making it suitable for media lovers and users needing more space. Some users note the phone looks very good and works smoothly, especially for multitasking with 12 GB RAM. The camera quality is appreciated for detailed photos. Battery life is mentioned as draining quickly by a few users, which may be a consideration for heavy daily use. The device's size and advanced features appeal to those who want a premium experience.

The Galaxy A21s fits users seeking a simple, reliable phone with long battery life and adequate cameras. The Galaxy Note20 Ultra 5G suits those who want a large, high-resolution screen, strong performance, and more storage for multitasking and media.

Galaxy A21s vs Galaxy Note20 Ultra 5G FAQs

Galaxy A21s vs Note20 Ultra 5G comes down to the RAM, battery and screen size. The Galaxy Note20 Ultra 5G has more RAM: 12 GB vs 3 GB. The Galaxy A21s has a bigger battery: 5000 mAh vs 4500 mAh.

The Galaxy A21s is cheaper refurbished, from £60.24 compared with £299 for the Galaxy Note20 Ultra 5G.

The Galaxy A21s has a bigger battery: 5000 mAh vs 4500 mAh.

The Galaxy Note20 Ultra 5G has a higher-resolution main camera: 108 megapixels vs 48 megapixels.

The Galaxy A21s no longer gets updates. Updates for the Galaxy Note20 Ultra 5G ended in Sep 2025.

Refurbished, the Galaxy A21s comes in 32GB and 64GB, and the Galaxy Note20 Ultra 5G in 128GB, 256GB and 512GB.

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