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Galaxy A12 vs Galaxy S20 Ultra 5G

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Galaxy A12

Starting at

£70.97£350.00 new
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Galaxy S20 Ultra 5G

Starting at

£233.80£1,220.00 new
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(364 reviews)
(300 reviews)

What's the difference between the Galaxy A12 and Galaxy S20 Ultra 5G?

Galaxy A12 vs S20 Ultra 5G comes down to the RAM, screen size and screen type. Refurbished, the Galaxy A12 starts at £70.97, £162.83 less than the Galaxy S20 Ultra 5G.

Refurbished from

£70.97£233.80

RAM

4 GB12 GB

Screen size

6.5 inch6.9 inch

Screen type

PLS LCDDynamic AMOLED 2X

Main camera

48 megapixels108 megapixels

Front camera

8 megapixels40 megapixels
  • The Galaxy S20 Ultra 5G has more RAM: 12 GB vs 4 GB.
  • The Galaxy S20 Ultra 5G has a bigger screen: 6.9 inch vs 6.5 inch.
  • The Galaxy S20 Ultra 5G has an OLED screen.

Galaxy A12 vs Galaxy S20 Ultra 5G specs

The Galaxy A12 and Galaxy S20 Ultra 5G both offer solid 5000 mAh batteries and run Android, but they serve different users. The Galaxy A12 suits those looking for a phone with a large screen and good storage options, ideal for everyday use and basic tasks. The Galaxy S20 Ultra 5G is designed for users who want a high-performance device with a very large, high-resolution screen, more RAM, advanced cameras, and 5G connectivity. It fits well for photography, heavy multitasking, and enjoying media in high detail. Both phones are unlocked and support expandable storage, but the S20 Ultra 5G adds eSIM support and a more advanced display technology.

Galaxy A12 vs Galaxy S20 Ultra 5G price

Galaxy A12 vs Galaxy S20 Ultra 5G battery life and software updates

Battery life and software updates play a key role in how long a phone stays useful. Both phones share some durability features but differ in update support.

Battery Capacity

The Galaxy A12 and Galaxy S20 Ultra 5G each have a 5000 mAh battery. This capacity suits users who want a phone that can last through a full day of typical use. Battery life will depend on how you use the phone, but both offer the same battery size for endurance.

Operating System Updates

This means both phones will run a version of Android that is not the newest available, which could affect access to the very latest features or security patches.

Battery

5000 mAh5000 mAh

Fast charging

N/A45 W

Foldable

NoNo

Software updates

Ended Nov 2024Ended Mar 2025

Year of release

20202020

Galaxy A12 vs Galaxy S20 Ultra 5G performance

Chipset

Mediatek MT6765 Helio P35 (12 nm)N/A

RAM

4 GB12 GB

Galaxy A12 vs Galaxy S20 Ultra 5G screen

The screen is a key difference between these two phones, affecting how you watch videos, browse, or use apps. Screen size, resolution, and technology vary significantly.

Screen Size and Resolution

The Galaxy A12 has a 6.5 inch screen with a resolution of 720 x 1600, providing a clear image for everyday use and media. The Galaxy S20 Ultra 5G offers a larger 6.9 inch screen with a much higher resolution of 1440 x 3200, delivering sharper detail and more space for multitasking or immersive video watching.

Screen Technology

The Galaxy A12 uses a PLS LCD screen which is suitable for general use and offers good colour and brightness. The Galaxy S20 Ultra 5G features a Dynamic AMOLED 2X screen, which provides richer colours, deeper blacks, and better contrast. This makes the S20 Ultra 5G a strong choice for users who prioritise screen quality for photos, videos, or gaming.

Refresh rate

N/A120 Hz

Resolution

720 x 16001440 x 3200

Screen size

6.5 inch6.9 inch

Screen type

PLS LCDDynamic AMOLED 2X

Galaxy A12 vs Galaxy S20 Ultra 5G camera

Camera quality and front-facing camera performance vary sharply between these two phones, shaping how you capture photos and video calls.

Main Camera Detail

The Galaxy A12 has a 48 megapixel main camera that suits everyday photo needs with good detail. The Galaxy S20 Ultra 5G features a 108 megapixel main camera, capturing much more detail and offering a higher resolution for photos. This makes the S20 Ultra 5G a better choice for photography enthusiasts or those who want very detailed images.

Front Camera Resolution

For selfies and video calls, the Galaxy A12 has an 8 megapixel front camera, which is good for clear images. The Galaxy S20 Ultra 5G has a 40 megapixel front camera, delivering much higher detail and sharper self-portraits.

Camera type

N/AQuadruple (4x)

Front camera

8 megapixels40 megapixels

Main camera

48 megapixels108 megapixels

Galaxy A12 vs Galaxy S20 Ultra 5G size and design

Other features like network support, connectors, and SIM options can influence daily convenience and compatibility with accessories.

Mobile Network

The Galaxy A12 operates on 4G networks, which suits users who do not require the fastest mobile internet. The Galaxy S20 Ultra 5G supports 5G, offering access to faster data speeds where 5G is available, ideal if you want quicker downloads and streaming.

Connectors and Audio

The Galaxy A12 includes both USB-C and a 3.5mm headphone jack, allowing you to use traditional wired headphones without an adapter. The Galaxy S20 Ultra 5G offers a USB-C connector only, so wired audio will require compatible USB-C headphones or an adapter.

SIM Card Options

The Galaxy A12 uses a physical SIM card, while the Galaxy S20 Ultra 5G supports both a physical SIM and eSIM. The eSIM option provides more flexibility for managing mobile plans without needing a physical card.

Storage and Weight

The Galaxy A12 comes in multiple storage options including 32GB, 64GB, and 128GB, giving more choices for storage size. The Galaxy S20 Ultra 5G is stocked with 128GB. The Galaxy A12 weighs 205 g, making it lighter to carry compared to the Galaxy S20 Ultra 5G which weighs 222 g.

Carrier compatibility

UnlockedUnlocked

Connector

USB-C + Jack 3.5mmUSB-C

Depth

8.9 mm8.8 mm

Height

164 mm166.9 mm

Mobile network

4G5G

SD card slot

microSDXCmicroSDXC

SIM card

Physical SIMPhysical SIM + eSIM

Weight

205 g222 g

Width

75.8 mm76 mm

Galaxy A12 or Galaxy S20 Ultra 5G: which should you buy?

Buy the Galaxy A12 if

  • you want to spend less: it starts at £70.97, £162.83 less than the Galaxy S20 Ultra 5G
  • you want a lighter build (205 g vs 222 g)
  • you want a headphone jack

Buy the Galaxy S20 Ultra 5G if

  • you want more RAM (12 GB vs 4 GB)
  • you want a bigger screen (6.9 inch vs 6.5 inch)
  • you want an OLED screen

What our customers say

Customers who bought the Galaxy A12 generally appreciate its condition, ease of use, and good storage options. Many mention the phone works well and looks spotless. Some report slower charging and occasional touchscreen response delays, while others value its simplicity and reliability. The Galaxy A12 suits those who want a straightforward phone with enough storage and a large screen for everyday tasks.

Customers of the Galaxy S20 Ultra 5G highlight the phone's excellent condition and spotless appearance. The high-resolution screen and 12GB RAM meet the needs of users who enjoy clear visuals and multitasking. Some mention the battery life could be better, but many are pleased with the camera quality and overall performance. The Galaxy S20 Ultra 5G is a good fit for users who want advanced features, 5G connectivity, and a premium screen.

Both phones receive praise for their condition and functionality. The Galaxy A12 appeals to those seeking a lighter phone with sufficient storage, while the Galaxy S20 Ultra 5G is suited to users looking for high performance, detailed cameras, and faster mobile networks.

Galaxy A12 vs Galaxy S20 Ultra 5G FAQs

Galaxy A12 vs S20 Ultra 5G comes down to the RAM, screen size and screen type. The Galaxy S20 Ultra 5G has more RAM: 12 GB vs 4 GB. The Galaxy S20 Ultra 5G has a bigger screen: 6.9 inch vs 6.5 inch.

The Galaxy A12 is cheaper refurbished, from £70.97 compared with £233.80 for the Galaxy S20 Ultra 5G.

Both have the same battery: 5000 mAh.

The Galaxy S20 Ultra 5G has a higher-resolution main camera: 108 megapixels vs 48 megapixels.

Updates for the Galaxy A12 ended in Nov 2024. Updates for the Galaxy S20 Ultra 5G ended in Mar 2025.

Refurbished, the Galaxy A12 comes in 32GB, 64GB and 128GB, and the Galaxy S20 Ultra 5G in 128GB.

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