Galaxy S21 5G vs Oppo Find X3 Neo
Shop Samsung Galaxy
Galaxy S21 5G
Starting at
£171.33£1,290.00 new
Oppo Find X3 Neo
Starting at
£137.16What's the difference between the Galaxy S21 5G and Oppo Find X3 Neo?
Galaxy S21 5G vs Oppo Find X3 Neo comes down to the chipset, RAM and battery. Refurbished, the Oppo Find X3 Neo starts at £137.16, £34.17 less than the Galaxy S21 5G.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 5G, Qualcomm SM8250 Snapdragon 865 5G (7 nm+) on the Oppo Find X3 Neo.
- The Oppo Find X3 Neo has more RAM: 12 GB vs 8 GB.
- The Oppo Find X3 Neo has a bigger battery: 4500 mAh vs 4000 mAh.
Galaxy S21 5G vs Oppo Find X3 Neo specs
The Galaxy S21 5G and Oppo Find X3 Neo are both 2021 Android smartphones that suit different user needs. The Galaxy S21 5G is a good choice if you want a compact phone with a 6.2 inch Dynamic AMOLED 2X screen that refreshes at 120 Hz for smoother visuals. It has 8 GB of RAM and comes with storage options of 128GB or 256GB. The Oppo Find X3 Neo offers a larger 6,55 inch AMOLED screen with a 90 Hz refresh rate and more RAM at 12 GB, making it suitable if you prefer a bigger display and multitasking. The Find X3 Neo's cameras capture more detail, with a 50 megapixel main camera and a 32 megapixel front camera compared to the Galaxy's 12 and 10 megapixels. Consider these differences based on what matters to you most in size, screen smoothness, camera detail, and software updates.
Galaxy S21 5G vs Oppo Find X3 Neo price
Colour
Storage
- 256GBSold out
Galaxy S21 5G vs Oppo Find X3 Neo battery life and software updates
Durability covers battery capacity, software updates, and basic hardware design.
Battery Capacity
The Oppo Find X3 Neo has a larger 4500 mAh battery, which can suit users who want longer use between charges. The Galaxy S21 5G has a 4000 mAh battery, still sufficient for typical daily use but smaller in comparison.
Battery
Foldable
Software updates
Year of release
Galaxy S21 5G vs Oppo Find X3 Neo performance
Performance depends on chipset, RAM, and storage options. The Galaxy S21 5G offers different chipset versions, while the Oppo Find X3 Neo has more RAM and a single storage option in stock.
Chipset Variants
The Galaxy S21 5G features two chipset options: Exynos 2100 and Qualcomm SM8350 Snapdragon 888, both built on a 5 nm process. The Oppo Find X3 Neo uses the Qualcomm SM8250 Snapdragon 865 5G chipset built on 7 nm+. This means the Galaxy's chipsets are made with a newer manufacturing process, which can affect efficiency and performance.
RAM Capacity
With 12 GB of RAM, the Oppo Find X3 Neo is suited for users who run many apps at once or use memory-intensive tasks. The Galaxy S21 5G offers 8 GB of RAM, which supports everyday apps and moderate multitasking smoothly.
Storage Options
The Galaxy S21 5G is available with 128GB or 256GB of storage, giving you a choice of capacity. The Oppo Find X3 Neo is stocked with 256GB, ideal if you want more space without choosing between sizes.
Chipset
RAM
Galaxy S21 5G vs Oppo Find X3 Neo screen
Screen quality affects how content looks and feels to use. Both phones share the same resolution but differ in size, refresh rate, and screen technology.
Screen Size
The Oppo Find X3 Neo has a larger 6,55 inch screen, which suits watching videos or browsing with more room to see detail. The Galaxy S21 5G's 6.2 inch screen makes for a more compact phone that fits easily in one hand.
Refresh Rate
The Galaxy S21 5G features a 120 Hz refresh rate, which offers smoother motion when scrolling or gaming. The Oppo Find X3 Neo's 90 Hz screen still delivers fluid visuals but with a slightly lower refresh rate.
Screen Technology
The Galaxy S21 5G uses Dynamic AMOLED 2X technology, which is known for vibrant colours and deep contrast. The Oppo Find X3 Neo uses AMOLED, providing rich colours and good contrast as well, but without the Dynamic AMOLED 2X designation.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S21 5G vs Oppo Find X3 Neo camera
Camera quality is an important factor for many users. These phones vary in their front and rear camera megapixels, influencing image detail.
Main Camera Detail
The Oppo Find X3 Neo has a 50 megapixel main camera, which captures more detail in photos and is suited if you want high-resolution images. The Galaxy S21 5G's 12 megapixel main camera provides sharp pictures for everyday photography.
Front Camera Detail
For selfies and video calls, the Oppo Find X3 Neo offers a 32 megapixel front camera, delivering more detail. The Galaxy S21 5G has a 10 megapixel front camera, which supports clear and good quality self-portraits.
Front camera
Main camera
Galaxy S21 5G vs Oppo Find X3 Neo size and design
Several other features can influence your choice, including physical size, weight, SIM options, and connectivity.
Physical Dimensions and Weight
The Galaxy S21 5G measures 151.7 mm in height, 71.2 mm in width, and 7.9 mm in depth, weighing 169 g. The Oppo Find X3 Neo is slightly taller at 15,99 cm, wider at 7,25 cm, deeper at 0,8 cm, and heavier at 184 g. This makes the Galaxy more compact and lighter, while the Oppo offers a bigger footprint.
SIM Card Options
The Galaxy S21 5G supports Dual Physical SIM plus eSIM, providing flexibility if you want to use two physical SIM cards and a virtual SIM. The Oppo Find X3 Neo supports Dual Physical SIM, suitable if you prefer using two physical SIM cards.
Charging Connector
Both phones use USB Type-C connectors, so you can use standard USB-C cables for charging and data transfer.
Network Compatibility
Both devices are unlocked and work with 5G networks, offering high-speed mobile internet.
Carrier compatibility
Connector
Depth
Height
Mobile network
SD card slot
SIM card
Weight
Width
Galaxy S21 5G or Oppo Find X3 Neo: which should you buy?
Buy the Galaxy S21 5G if
- you want a smoother screen (120 Hz vs 90 Hz)
- you want a lighter build (169 g vs 184 g)
Buy the Oppo Find X3 Neo if
- you want to spend less: it starts at £137.16, £34.17 less than the Galaxy S21 5G
- you want more RAM (12 GB vs 8 GB)
- you want a bigger battery (4500 mAh vs 4000 mAh)
What our customers say
Customers who bought the Galaxy S21 5G often highlight how the phone looks and feels like new, with many praising its excellent condition and battery life. They appreciate the compact size and reliability for everyday use. Some mention the dual SIM functionality as a key benefit for managing personal and work lines or data plans. Overall, buyers find the phone smooth to use and in pristine condition, with good battery performance and a screen that handles daily tasks well.
Customers of the Oppo Find X3 Neo comment that the phone matches descriptions accurately and appears like new, with very few minor marks. The larger screen and camera details stand out for those who enjoy media and photography. The higher RAM also appeals to users who want smooth multitasking. Some note good value for money and satisfaction with the overall phone shape and performance.
Both phones suit buyers who want a refurbished device that feels fresh and performs reliably. Choose the Galaxy S21 5G if you want a lighter, more compact phone with a high refresh rate screen and latest software updates. The Oppo Find X3 Neo is ideal if you prefer a larger display, more RAM, and higher resolution cameras.
Galaxy S21 5G vs Oppo Find X3 Neo FAQs
Galaxy S21 5G vs Oppo Find X3 Neo comes down to the chipset, RAM and battery. Chipset: Exynos 2100 (5 nm), Qualcomm SM8350 Snapdragon 888 5G (5 nm) on the Galaxy S21 5G, Qualcomm SM8250 Snapdragon 865 5G (7 nm+) on the Oppo Find X3 Neo. The Oppo Find X3 Neo has more RAM: 12 GB vs 8 GB.
The Oppo Find X3 Neo is cheaper refurbished, from £137.16 compared with £171.33 for the Galaxy S21 5G.
The Oppo Find X3 Neo has a bigger battery: 4500 mAh vs 4000 mAh.
The Oppo Find X3 Neo has a higher-resolution main camera: 50 megapixels vs 12 megapixels.
Updates for the Galaxy S21 5G ended in Feb 2026. We don't have published update dates for the Oppo Find X3 Neo.
Refurbished, the Galaxy S21 5G comes in 128GB and 256GB, and the Oppo Find X3 Neo in 256GB.
