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Galaxy S20 Ultra vs Oppo Reno4 Pro

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Galaxy S20 Ultra

Starting at

£269.45£1,199.99 new
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Oppo Reno4 Pro

Starting at

£200.00
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(86 reviews)

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

Galaxy S20 Ultra vs Oppo Reno4 Pro comes down to the RAM, battery and screen size. Refurbished, the Oppo Reno4 Pro starts at £200, £69.45 less than the Galaxy S20 Ultra.

Refurbished from

£269.45£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 has more RAM: 12 GB vs 8 GB.
  • The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 4000 mAh.
  • The Galaxy S20 Ultra has a bigger screen: 6.9 inch vs 6.5 inch.

Galaxy S20 Ultra vs Oppo Reno4 Pro specs

The Galaxy S20 Ultra and Oppo Reno4 Pro both come from 2020 and run Android, but they offer different strengths depending on your priorities. The Galaxy S20 Ultra has a larger battery and more memory, which suits heavier multitasking and longer use between charges. Its screen is bigger with a higher resolution and faster refresh rate, making it better for watching videos or gaming. The Oppo Reno4 Pro is lighter and slimmer with a smaller screen, which fits better in your hand or pocket. It also offers more built-in storage, which suits those who keep a large number of apps and files without relying heavily on external memory cards. Both devices support dual SIM cards and microSDXC slots, so either can handle multiple networks and expandable storage.

Galaxy S20 Ultra vs Oppo Reno4 Pro price

Storage

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

Battery capacity and operating system are key to daily use and reliability. Both devices run Android, but their batteries differ in size, affecting how long you can use them between charges.

Battery Capacity

The Galaxy S20 Ultra has a 5000 mAh battery, which suits users who need longer screen time or extended use without recharging. The Oppo Reno4 Pro comes with a 4000 mAh battery, which is well matched for typical daily use and will keep you going through a regular day of calls and apps.

Operating System

This means both devices offer a familiar interface and access to the same apps, so your choice can focus on other differences.

Battery

5000 mAh4000 mAh

Foldable

NoN/A

OS at launch

N/AAndroid 10

Software updates

Ended Mar 2025N/A

Year of release

20202020

Galaxy S20 Ultra vs Oppo Reno4 Pro performance

Chipset

N/AQualcomm SM7125 Snapdragon 720G (8 nm)

RAM

12 GB8 GB

Galaxy S20 Ultra vs Oppo Reno4 Pro screen

Screen size, resolution and refresh rate affect how you experience videos, games and everyday navigation. Both screens use AMOLED technology, but with different sizes and qualities.

Screen Size and Type

The Galaxy S20 Ultra features a 6.9 inch Dynamic AMOLED 2X display, giving you a larger and potentially more vibrant viewing surface. This suits users who watch videos, browse photos or play games on a roomy screen. The Oppo Reno4 Pro has a 6.5 inch Super AMOLED screen, which still offers strong colour and contrast in a more compact form.

Resolution

The Galaxy S20 Ultra has a higher resolution of 1440 x 3200, which delivers sharper details and crisper text. This is useful if you want a clearer image for reading or media. The Oppo Reno4 Pro's screen resolution is 1080 x 2400, which provides good clarity for everyday viewing and uses less battery power.

Refresh Rate

With a 120 Hz refresh rate, the Galaxy S20 Ultra offers smoother motion, which benefits gaming and fast scrolling. The Oppo Reno4 Pro refreshes at 90 Hz, still offering smoother visuals than standard 60 Hz but less fluid than the S20 Ultra.

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 vs Oppo Reno4 Pro camera

Camera type

Quadruple (4x)N/A

Front camera

40 megapixelsN/A

Main camera

108 megapixelsN/A

Galaxy S20 Ultra vs Oppo Reno4 Pro size and design

Several other physical and connectivity features may influence your daily handling and storage needs.

Size and Weight

The Galaxy S20 Ultra measures 166.9 mm tall, 76 mm wide and 8.8 mm deep, weighing 222 g. This larger, heavier device suits those who prefer a substantial phone with more screen space. The Oppo Reno4 Pro is smaller and lighter at 160.2 mm tall, 73.2 mm wide, 7.7 mm deep and 161 g, making it easier to hold and carry.

Storage and Expandability

The Oppo Reno4 Pro comes stocked with 256GB of internal storage, ideal if you keep many photos, videos or apps without frequently relying on external cards. Both devices support microSDXC cards, allowing you to expand storage further if needed.

SIM and Network

Both phones support Dual Physical SIM cards and 4G mobile networks, giving you the flexibility to manage two numbers or plans at once. Both are unlocked, so you can choose your preferred carrier.

Connector Type

Each device uses a USB-C connector, offering compatibility with a wide range of chargers and accessories.

Carrier compatibility

UnlockedUnlocked

Connector

USB-CUSB-C

Depth

8.8 mm7.7 mm

Height

166.9 mm160.2 mm

Mobile network

4G4G

SD card slot

microSDXCmicroSDXC

SIM card

Dual Physical SIMDual Physical SIM

Weight

222 g161 g

Width

76 mm73.2 mm

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

Buy the Galaxy S20 Ultra 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, £69.45 less than the Galaxy S20 Ultra
  • you want a lighter build (161 g vs 222 g)

Galaxy S20 Ultra vs Oppo Reno4 Pro FAQs

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

The Oppo Reno4 Pro is cheaper refurbished, from £200 compared with £269.45 for the Galaxy S20 Ultra.

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

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

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

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