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Galaxy S20 Ultra 5G vs Oppo Reno4 Pro

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Galaxy S20 Ultra 5G

Starting at

£233.80£1,220.00 new
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Oppo Reno4 Pro

Starting at

£200.00
See options
(300 reviews)

What's the difference between the Galaxy S20 Ultra 5G and Oppo Reno4 Pro?

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro comes down to the RAM, battery and screen size. Refurbished, the Oppo Reno4 Pro starts at £200, £33.80 less than the Galaxy S20 Ultra 5G.

Refurbished from

£233.80£200

RAM

12 GB8 GB

Battery

5000 mAh4000 mAh

Screen size

6.9 inch6.5 inch

Screen type

Dynamic AMOLED 2XSuper AMOLED

Refresh rate

120 Hz90 Hz
  • The Galaxy S20 Ultra 5G has more RAM: 12 GB vs 8 GB.
  • The Galaxy S20 Ultra 5G has a bigger battery: 5000 mAh vs 4000 mAh.
  • The Galaxy S20 Ultra 5G has a bigger screen: 6.9 inch vs 6.5 inch.

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro specs

The Galaxy S20 Ultra 5G and Oppo Reno4 Pro both come from 2020 and run Android, but they differ in several key areas. The Galaxy S20 Ultra 5G suits users who want a larger, sharper screen with a higher refresh rate and a bigger battery for longer use. Its 12 GB of RAM supports keeping many apps open at once. The Oppo Reno4 Pro is lighter and slimmer, with a smaller but still vivid screen and a larger 256GB storage option, which suits users who need more space for files. It works on 4G networks and offers dual physical SIMs, while the Galaxy has 5G and a combination of physical SIM and eSIM for flexible connectivity options.

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro price

Storage

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro battery life and software updates

Battery capacity and operating system are key to durability in daily use. Both phones run Android but differ in battery size, affecting how long they can keep going between charges.

Battery Capacity

The Galaxy S20 Ultra 5G has a 5000 mAh battery, which suits users who need extended screen time or heavy use without frequent recharging. The Oppo Reno4 Pro comes with a 4000 mAh battery, which works well for everyday use and moderate screen time, keeping the device lighter.

Operating System

This means both phones offer access to the Android app ecosystem and familiar features, with the Oppo providing clear information on its OS version.

Battery

5000 mAh4000 mAh

Fast charging

45 WN/A

Foldable

NoN/A

OS at launch

N/AAndroid 10

Software updates

Ended Mar 2025N/A

Year of release

20202020

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro performance

Chipset

N/AQualcomm SM7125 Snapdragon 720G (8 nm)

RAM

12 GB8 GB

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro screen

Screen size, resolution and refresh rate shape your viewing experience. The Galaxy S20 Ultra 5G offers a larger and sharper display with a smoother refresh rate, while the Oppo Reno4 Pro balances size and quality with a slightly smaller screen.

Screen Size and Resolution

The Galaxy S20 Ultra 5G features a 6.9 inch screen with a resolution of 1440 x 3200. This larger, higher resolution display suits users who watch lots of video or want detailed clarity. The Oppo Reno4 Pro has a 6.5 inch screen at 1080 x 2400 resolution, which is comfortable for everyday viewing and easier to handle with one hand.

Refresh Rate and Screen Type

With a 120 Hz refresh rate and Dynamic AMOLED 2X technology, the Galaxy S20 Ultra 5G offers very smooth scrolling and vibrant colours, which benefits gamers and those who value fluid visuals. The Oppo Reno4 Pro has a 90 Hz refresh rate and a Super AMOLED screen, which still provides smooth motion and vivid colours but with a slightly lower refresh rate.

Refresh rate

120 Hz90 Hz

Resolution

1440 x 32001080 x 2400

Screen size

6.9 inch6.5 inch

Screen type

Dynamic AMOLED 2XSuper AMOLED

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro camera

Camera type

Quadruple (4x)N/A

Front camera

40 megapixelsN/A

Main camera

108 megapixelsN/A

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro size and design

Other features like network compatibility, size, weight and SIM options impact how the devices fit your lifestyle and connectivity needs.

Network and SIM Options

The Galaxy S20 Ultra 5G supports 5G networks and offers a Physical SIM plus eSIM setup, ideal for users who want faster mobile internet and flexible SIM management. The Oppo Reno4 Pro works on 4G and has dual Physical SIM slots, which suits those who want to use two physical numbers simultaneously.

Dimensions and Weight

The Galaxy S20 Ultra 5G is larger and heavier at 166.9 mm tall, 76 mm wide and 8.8 mm deep weighing 222 g. This gives a roomy screen but a more substantial feel in the hand. The Oppo Reno4 Pro measures 160.2 mm by 73.2 mm by 7.7 mm and weighs 161 g, making it slimmer and lighter, which some users prefer for one-handed use and pocket comfort.

Storage Options

The Oppo Reno4 Pro offers 256GB of storage in stock, suitable for users with many apps, photos or media files. The Galaxy S20 Ultra 5G stock option is 128GB, which still provides solid space but less than the Oppo. Both support microSDXC cards for expandable storage.

Charging Connector

Both devices use USB-C connectors, which is common and convenient for charging and data transfer.

Carrier compatibility

UnlockedUnlocked

Connector

USB-CUSB-C

Depth

8.8 mm7.7 mm

Height

166.9 mm160.2 mm

Mobile network

5G4G

SD card slot

microSDXCmicroSDXC

SIM card

Physical SIM + eSIMDual Physical SIM

Weight

222 g161 g

Width

76 mm73.2 mm

Galaxy S20 Ultra 5G or Oppo Reno4 Pro: which should you buy?

Buy the Galaxy S20 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 bigger screen (6.9 inch vs 6.5 inch)

Buy the Oppo Reno4 Pro if

  • you want to spend less: it starts at £200, £33.80 less than the Galaxy S20 Ultra 5G
  • you want a lighter build (161 g vs 222 g)

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro FAQs

Galaxy S20 Ultra 5G vs Oppo Reno4 Pro comes down to the RAM, battery and screen size. The Galaxy S20 Ultra 5G has more RAM: 12 GB vs 8 GB. The Galaxy S20 Ultra 5G has a bigger battery: 5000 mAh vs 4000 mAh.

The Oppo Reno4 Pro is cheaper refurbished, from £200 compared with £233.80 for the Galaxy S20 Ultra 5G.

The Galaxy S20 Ultra 5G has a bigger battery: 5000 mAh vs 4000 mAh.

Updates for the Galaxy S20 Ultra 5G ended in Mar 2025. We don't have published update dates for the Oppo Reno4 Pro.

Refurbished, the Galaxy S20 Ultra 5G comes in 128GB, and the Oppo Reno4 Pro in 256GB.

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