Galaxy S21 5G vs OnePlus 10 Pro
Shop Samsung Galaxy
Galaxy S21 5G
Starting at
£171.33£1,290.00 new
OnePlus 10 Pro
Starting at
£271.00What's the difference between the Galaxy S21 5G and OnePlus 10 Pro?
Galaxy S21 5G vs OnePlus 10 Pro comes down to the chipset, battery and screen size. Refurbished, the Galaxy S21 5G starts at £171.33, £99.67 less than the OnePlus 10 Pro. The OnePlus 10 Pro is the newer model, released in 2022.
Refurbished from
Chipset
Battery
Screen size
Screen type
Main camera
- Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 5G, Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm) on the OnePlus 10 Pro.
- The OnePlus 10 Pro has a bigger battery: 5000 mAh vs 4000 mAh.
- The OnePlus 10 Pro has a bigger screen: 6.7 inch vs 6.2 inch.
Galaxy S21 5G vs OnePlus 10 Pro specs
The Galaxy S21 5G and OnePlus 10 Pro both run Android and support 5G, but they offer different experiences suited to different users. The OnePlus 10 Pro has a larger, higher resolution screen and a bigger battery, making it suitable for those who want a roomier display and longer use between charges. The Galaxy S21 5G is more compact and lighter, which suits users looking for a phone that is easier to hold and carry. The OnePlus 10 Pro features cameras with higher megapixel counts, ideal for detailed photos. Both devices have 8 GB of RAM and similar storage options, but the OnePlus 10 Pro's newer chipset may appeal to those looking for the latest performance. Your choice depends on whether you prioritise screen size, camera detail, battery capacity, or a more compact design.
Galaxy S21 5G vs OnePlus 10 Pro price
Colour
Storage
- 128GBSold out
- 256GBSold out
Galaxy S21 5G vs OnePlus 10 Pro battery life and software updates
Battery capacity and software updates are key durability factors here.
Battery Capacity
The OnePlus 10 Pro has a 5000 mAh battery, which is larger than the Galaxy S21 5G's 4000 mAh battery. This means the OnePlus 10 Pro can offer longer usage between charges, which benefits users who spend extended periods away from power sources. The Galaxy S21 5G's smaller battery suits those who prefer a lighter phone and usually have access to charging during the day.
Software Updates
This ensures both devices receive current features and security improvements, supporting a smooth and protected user experience over time.
Battery
Fast charging
Foldable
Software updates
Wireless charging
Year of release
Galaxy S21 5G vs OnePlus 10 Pro performance
Performance depends on the chipset and memory. Both phones offer 8 GB of RAM and storage options that suit a range of needs.
Chipset and Processing
The Galaxy S21 5G includes either the Exynos 2100 or Snapdragon 888 5G chipset, while the OnePlus 10 Pro features the Snapdragon 8 Gen 1 chipset. The OnePlus 10 Pro's chipset is manufactured on a 4 nm process, compared to the 5 nm process for the Galaxy S21 5G's chipsets. This means the OnePlus 10 Pro uses a newer chipset technology, which can affect efficiency and performance for users interested in the latest hardware.
Memory and Storage
Both devices come with 8 GB of RAM, which helps keep everyday apps running smoothly. Storage options are similar, with 128GB and 256GB capacities available for both phones. This offers flexibility whether you store many apps, photos, or media.
Chipset
RAM
Galaxy S21 5G vs OnePlus 10 Pro screen
Screen size, resolution, and technology affect how you view content. Both phones offer smooth 120 Hz refresh rates for fluid visuals.
Screen Size and Resolution
The OnePlus 10 Pro has a larger 6.7 inch screen with a resolution of 1440 x 3216, providing more room for videos, browsing, and multitasking. The Galaxy S21 5G has a 6.2 inch screen at 1080 x 2400 resolution, making it more compact and easier to use with one hand. Choose the OnePlus 10 Pro if you want a roomier display for detailed viewing or the Galaxy S21 5G for a phone that fits more comfortably in the hand.
Screen Type
The Galaxy S21 5G uses a Dynamic AMOLED 2X screen, while the OnePlus 10 Pro features an LTPO2 Fluid AMOLED screen. Both offer vibrant colours and deep contrast, but the OnePlus 10 Pro's screen type supports adaptive refresh rates, which can help balance smoothness and battery life.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S21 5G vs OnePlus 10 Pro camera
Camera megapixels provide an idea of photo detail, which matters if you take many selfies or photos.
Front Camera Detail
The OnePlus 10 Pro has a 32 megapixel front camera, capturing more detail in selfies compared to the Galaxy S21 5G's 10 megapixels. This suits users who prioritise high-resolution self-portraits or video calls.
Main Camera Detail
The OnePlus 10 Pro's main camera has 48 megapixels, allowing for detailed photos. The Galaxy S21 5G's main camera has 12 megapixels, which still produces quality shots for everyday use. If capturing detailed images is important to you, the OnePlus 10 Pro's higher megapixel count may be preferable.
Front camera
Main camera
Galaxy S21 5G vs OnePlus 10 Pro size and design
Dimensions, weight, SIM options and connectors are practical differences that affect daily use and convenience.
Size and Weight
The Galaxy S21 5G is smaller and lighter, measuring 151.7 mm tall, 71.2 mm wide, and weighing 169 g. The OnePlus 10 Pro is taller and wider at 163 mm by 73.9 mm and heavier at 201 g. If you prefer a compact and light phone, the Galaxy S21 5G suits you better. The OnePlus 10 Pro offers a larger screen but with a noticeable increase in size and weight.
SIM Card Options
The Galaxy S21 5G supports Dual Physical SIM and eSIM, allowing for flexible mobile plans and easier switching between networks. The OnePlus 10 Pro supports Dual Physical SIM only, which suits users comfortable with physical SIM cards.
Connector Type
Both devices use USB Type-C connectors, but the OnePlus 10 Pro supports USB Type-C 3.1, which can provide faster data transfer speeds if you use compatible accessories.
Carrier compatibility
Connector
Depth
Height
Mobile network
SD card slot
SIM card
Weight
Width
Galaxy S21 5G or OnePlus 10 Pro: which should you buy?
Buy the Galaxy S21 5G if
- you want to spend less: it starts at £171.33, £99.67 less than the OnePlus 10 Pro
- you want a lighter build (169 g vs 200.5 g)
Buy the OnePlus 10 Pro if
- you want a bigger battery (5000 mAh vs 4000 mAh)
- you want a bigger screen (6.7 inch vs 6.2 inch)
- you want a higher-resolution main camera (48 megapixels vs 12 megapixels)
What our customers say
Customers who chose the Galaxy S21 5G often highlight the phone's excellent condition and battery performance, with many saying the device looks like new and functions perfectly. Several mention its compact size and the convenience of the dual SIM plus eSIM setup. Users appreciate the smooth experience and reliable battery life, with some using the dual SIM capability for managing different phone plans. The overall sentiment is that the phone feels like a high-quality device even after refurbishment.
Reviews for the OnePlus 10 Pro praise its quality and appearance, noting that it looks like new and offers good value. Some customers appreciate the device's performance and screen, though a few mention concerns with battery life and occasional issues with calls or screen responsiveness. The phone's larger screen and camera detail are likely attractive, but some users have experienced mixed reliability. Despite these points, many are satisfied with the phone's features and condition.
Both phones suit different preferences. The Galaxy S21 5G appeals to those who want a compact, lightweight phone with solid battery life and flexible SIM options. The OnePlus 10 Pro suits users seeking a larger screen, higher resolution cameras, and a big battery, accepting a larger and heavier device.
Galaxy S21 5G vs OnePlus 10 Pro FAQs
Galaxy S21 5G vs OnePlus 10 Pro comes down to the chipset, battery and screen size. Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 5G, Qualcomm SM8450 Snapdragon 8 Gen 1 (4 nm) on the OnePlus 10 Pro. The OnePlus 10 Pro has a bigger battery: 5000 mAh vs 4000 mAh.
The Galaxy S21 5G is cheaper refurbished, from £171.33 compared with £271 for the OnePlus 10 Pro.
The OnePlus 10 Pro has a bigger battery: 5000 mAh vs 4000 mAh.
The OnePlus 10 Pro has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
Updates for the Galaxy S21 5G ended in Feb 2026. We don't have published update dates for the OnePlus 10 Pro.
Both come in 128GB and 256GB refurbished.
