Galaxy S20 vs OnePlus 8 Pro
Shop Samsung Galaxy
Galaxy S20
Starting at
£188.75£999.00 new
OnePlus 8 Pro
Starting at
£177.00What's the difference between the Galaxy S20 and OnePlus 8 Pro?
Galaxy S20 vs OnePlus 8 Pro comes down to the RAM, battery and screen size. Refurbished, the OnePlus 8 Pro starts at £177, £11.75 less than the Galaxy S20.
Refurbished from
RAM
Battery
Screen size
Screen type
Main camera
- The OnePlus 8 Pro has more RAM: 12 GB vs 8 GB.
- The OnePlus 8 Pro has a bigger battery: 4510 mAh vs 4000 mAh.
- The OnePlus 8 Pro has a bigger screen: 6.78 inch vs 6.2 inch.
Galaxy S20 vs OnePlus 8 Pro specs
The Galaxy S20 and OnePlus 8 Pro are both 2020 Android smartphones that suit different user preferences. The Galaxy S20 offers a lighter and more compact design with a 6.2 inch Dynamic AMOLED 2X screen. The OnePlus 8 Pro has a larger 6.78 inch Fluid AMOLED display for more immersive viewing. The OnePlus 8 Pro has a bigger battery and more RAM, which benefits users who want longer usage and smoother multitasking. Camera enthusiasts may prefer the OnePlus 8 Pro's higher resolution front and main cameras. The Galaxy S20 supports microSDXC cards and eSIM alongside a physical SIM, catering to users who want flexible storage and SIM options. The OnePlus 8 Pro supports 5G and dual physical SIMs, appealing to those who want faster mobile networks and dual SIM capability.
Galaxy S20 vs OnePlus 8 Pro price
Colour
Storage
- 128GBSold out
- 256GBSold out
Galaxy S20 vs OnePlus 8 Pro battery life and software updates
Battery life, software updates, and basic build features influence how long a phone can serve you reliably. Here are the key differences between the Galaxy S20 and OnePlus 8 Pro in durability.
Battery Capacity
The Galaxy S20 has a 4000 mAh battery, which suits everyday use and moderate screen time. The OnePlus 8 Pro includes a larger 4510 mAh battery, making it better for longer stretches away from charging, especially if you use intensive apps or the bigger screen extensively.
Basic Design
Neither phone is foldable, and both come from the same release year, 2020, so their basic durability and design standards are broadly comparable.
Battery
Foldable
Software updates
Year of release
Galaxy S20 vs OnePlus 8 Pro performance
Chipset
RAM
Galaxy S20 vs OnePlus 8 Pro screen
Screen size, resolution, and display technology shape how you experience video, browsing, and apps. Both phones have high resolution AMOLED displays but differ in size and type.
Screen Size
The Galaxy S20 has a 6.2 inch screen, making it more compact and easier to use one-handed. The OnePlus 8 Pro offers a larger 6.78 inch display, which is more spacious for watching videos and multitasking but less pocket-friendly.
Resolution
Both phones provide a very high resolution close to 1440 x 3200 pixels. The Galaxy S20 has 1440 x 3200, slightly taller, while the OnePlus 8 Pro is 1440 x 3168. This means both deliver sharp and detailed images, with minimal difference in pixel count.
Screen Technology
The Galaxy S20 uses Dynamic AMOLED 2X, which offers vivid colours and good brightness. The OnePlus 8 Pro uses Fluid AMOLED, known for smooth visuals and a fluid feel. Each screen type suits users who prioritise either bright, vibrant colours or fluid animation.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S20 vs OnePlus 8 Pro camera
Cameras are key for many buyers. Front and main camera megapixels vary between these two phones, which affects photo detail and clarity.
Front Camera
The Galaxy S20 has a 10 megapixels front camera that captures clear selfies and video calls suitable for everyday use. The OnePlus 8 Pro features a 16 megapixels front camera, offering more detail for those who prioritise high-resolution selfies.
Main Camera
The Galaxy S20 includes a 12 megapixels main camera, which suits general photography well. The OnePlus 8 Pro steps up with a 48 megapixels main camera, capturing more detailed photos and potentially more cropping or zooming flexibility.
Camera type
Front camera
Main camera
Galaxy S20 vs OnePlus 8 Pro size and design
Other practical differences include network, SIM, storage, and physical dimensions. These details affect everyday convenience and compatibility.
Network and SIM
The Galaxy S20 supports 4G networks and offers a combination of Physical SIM plus eSIM, which is useful if you want a physical and a digital SIM. The OnePlus 8 Pro supports faster 5G networks and includes dual physical SIM slots, appealing if you want two separate physical SIM cards.
Storage Options
The Galaxy S20 comes with 128GB of storage and supports microSDXC cards, allowing you to expand storage with a memory card. The OnePlus 8 Pro is available with 128GB or 256GB but does not support microSD expansion, so you choose your storage size at purchase.
Size and Weight
The Galaxy S20 measures 161.9 mm by 73.7 mm by 7.8 mm and weighs 163 g, making it lighter and easier to hold. The OnePlus 8 Pro is larger and heavier at 165.3 mm by 74.4 mm by 8.5 mm and 199 g, which is typical for its bigger screen and battery.
Connector Type
Both phones use USB Type-C connectors for charging and data, so charging cables and accessories are widely compatible between them.
Carrier Compatibility
Both devices come unlocked, so you can use them with any UK network provider without restrictions.
Carrier compatibility
Connector
Depth
Height
Mobile network
SD card slot
SIM card
Weight
Width
Galaxy S20 or OnePlus 8 Pro: which should you buy?
Buy the Galaxy S20 if
- you want a lighter build (163 g vs 199 g)
- you want a memory card slot
Buy the OnePlus 8 Pro if
- you want to spend less: it starts at £177, £11.75 less than the Galaxy S20
- you want more RAM (12 GB vs 8 GB)
- you want a bigger battery (4510 mAh vs 4000 mAh)
What our customers say
Customers say the Galaxy S20 often looks like new or in excellent condition. Many praise its light weight and feel, highlighting that it suits users who want a compact and easy-to-handle phone. Some customers report excellent performance and reliability, while a few mention issues with screen responsiveness or blacklisting, indicating varied experiences. Overall, buyers appreciate the Galaxy S20 for everyday use and value its expandable storage and SIM flexibility.
The OnePlus 8 Pro receives praise for its condition, often described as better than expected or nearly mint. Users note good performance and ease of setup, with some appreciating the larger screen and higher camera resolution. Battery life is sometimes reported as draining quickly or heating, which some relate to its 12 GB RAM. The 5G support and dual physical SIM are attractive for users who need faster networks or dual SIM functionality.
In summary, the Galaxy S20 suits those who want a lighter, smaller phone with expandable storage and a simpler memory setup. The OnePlus 8 Pro fits users who want a larger screen, more RAM, higher resolution cameras, and 5G connectivity.
Galaxy S20 vs OnePlus 8 Pro FAQs
Galaxy S20 vs OnePlus 8 Pro comes down to the RAM, battery and screen size. The OnePlus 8 Pro has more RAM: 12 GB vs 8 GB. The OnePlus 8 Pro has a bigger battery: 4510 mAh vs 4000 mAh.
The OnePlus 8 Pro is cheaper refurbished, from £177 compared with £188.75 for the Galaxy S20.
The OnePlus 8 Pro has a bigger battery: 4510 mAh vs 4000 mAh.
The OnePlus 8 Pro has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
Updates for the Galaxy S20 ended in Mar 2025. We don't have published update dates for the OnePlus 8 Pro.
Refurbished, the Galaxy S20 comes in 128GB, and the OnePlus 8 Pro in 128GB and 256GB.
