Galaxy A51 vs Oppo Reno4 Z 5G
Shop Samsung Galaxy
Galaxy A51
Starting at
£96.95£350.00 new
Oppo Reno4 Z 5G
Starting at
£105.00What's the difference between the Galaxy A51 and Oppo Reno4 Z 5G?
Galaxy A51 vs Oppo Reno4 Z 5G comes down to the chipset, RAM and screen size. Refurbished, the Galaxy A51 starts at £96.95, £8.05 less than the Oppo Reno4 Z 5G. The Oppo Reno4 Z 5G is the newer model, released in 2020.
Refurbished from
Chipset
RAM
Screen size
Screen type
Refresh rate
- Chipset: Exynos 9611 on the Galaxy A51, Mediatek Dimensity 800 on the Oppo Reno4 Z 5G.
- The Oppo Reno4 Z 5G has more RAM: 8 GB vs 4 GB.
- Screen size: 6.5 inch on the Galaxy A51, 6.57 inch on the Oppo Reno4 Z 5G.
Galaxy A51 vs Oppo Reno4 Z 5G specs
The Galaxy A51 and the Oppo Reno4 Z 5G both offer solid options for everyday use but differ in key areas that suit different needs. The Oppo Reno4 Z 5G supports 5G connectivity and has a faster 120 Hz screen refresh rate with more RAM, making it a strong choice for users who want smooth scrolling and better multitasking. The Galaxy A51 provides a Super AMOLED screen and a higher resolution front camera, which benefits those who prefer vibrant colours and detailed selfies. Storage options vary with the Galaxy A51 available in two sizes, while the Reno4 Z 5G offers a single 128GB option. The Galaxy A51 also includes a microSDXC card slot for extra storage flexibility.
Galaxy A51 vs Oppo Reno4 Z 5G price
Colour
- WhiteSold out
Storage
- 128GBSold out
Galaxy A51 vs Oppo Reno4 Z 5G battery life and software updates
Both devices share some key durability features but differ in update support.
Battery Capacity
Both the Galaxy A51 and Oppo Reno4 Z 5G include a 4000 mAh battery. This capacity is suitable for daily use and should provide a full day of typical phone activities such as browsing, messaging, and media playback.
Operating System
Both devices run on Android, providing access to a wide range of apps and services.
Battery
Fast charging
Foldable
Software updates
Year of release
Galaxy A51 vs Oppo Reno4 Z 5G performance
Performance depends on chipset, memory, and storage options. These elements influence multitasking, app speed, and how much you can store on your device.
Processor and Memory
The Galaxy A51 uses the Exynos 9611 chipset with 4 GB of RAM, suitable for everyday apps and moderate multitasking. The Oppo Reno4 Z 5G has a Mediatek Dimensity 800 chipset with 8 GB of RAM, providing more memory to keep multiple apps open and smoother performance for more demanding tasks.
Storage Options
The Galaxy A51 is available with 64GB or 128GB of storage, giving you choice depending on your needs. The Oppo Reno4 Z 5G comes with 128GB of storage, which offers ample space for apps, photos, and media.
Chipset
RAM
Galaxy A51 vs Oppo Reno4 Z 5G screen
The screen affects how you view content, read text, and interact with your phone. Differences here impact display smoothness, colour quality, and size.
Refresh Rate
The Oppo Reno4 Z 5G features a 120 Hz refresh rate, which makes animations and scrolling appear smoother. This benefits users who value fluid visual experience when browsing or gaming. The Galaxy A51 has a 60 Hz refresh rate, which is standard and suits everyday viewing without extra motion smoothness.
Screen Type and Size
The Galaxy A51 has a 6.5 inch Super AMOLED screen, offering vibrant colours and deep blacks. This makes it a good choice if you prefer rich and vivid display quality. The Oppo Reno4 Z 5G has a 6.57 inch IPS LCD screen, which delivers accurate colours and wide viewing angles.
Resolution
Both phones share the same resolution of 1080 x 2400 pixels, providing clear and sharp images that suit media consumption and everyday use.
Refresh rate
Resolution
Screen size
Screen type
Galaxy A51 vs Oppo Reno4 Z 5G camera
Camera quality is important for photos and video calls. The front and main cameras differ in their megapixel count and suit different photography preferences.
Front Camera Detail
The Galaxy A51 has a 32 megapixel front camera, which captures more detail in selfies and video calls. This suits users who prioritise high-resolution self-portraits. The Oppo Reno4 Z 5G's front camera is 16 megapixels, offering good quality suitable for everyday use.
Main Camera Similarity
Both devices feature a 48 megapixel main camera. This megapixel count is capable of delivering detailed photos in well-lit conditions, suitable for casual photography.
Front camera
Main camera
Galaxy A51 vs Oppo Reno4 Z 5G size and design
Other features include network compatibility, physical dimensions, storage expansion, and SIM options. These affect connectivity, portability, and storage flexibility.
Mobile Network
The Oppo Reno4 Z 5G supports 5G networks, making it a choice for users looking for faster mobile data speeds where 5G coverage is available. The Galaxy A51 supports 4G, which remains widely used and reliable.
Storage Expansion
The Galaxy A51 includes a microSDXC card slot, allowing you to expand storage with a memory card. This is useful if you want to add extra space for photos and files. The Oppo Reno4 Z 5G does not have a card slot.
Size and Weight
The Galaxy A51 measures 158.5 mm in height, 73.6 mm in width, and weighs 172 g, making it slightly smaller and lighter. The Oppo Reno4 Z 5G is taller at 163.8 mm, wider at 75.5 mm, and heavier at 184 g, which might affect how it feels in the hand or pocket.
SIM and Carrier Compatibility
Both phones are unlocked and support dual physical SIM cards, providing flexibility to use two numbers or networks at once.
Depth
The Galaxy A51 is 7.9 mm thick, while the Oppo Reno4 Z 5G measures 8.1 mm in depth. This difference is minimal but may affect pocket fit slightly.
Carrier compatibility
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy A51 or Oppo Reno4 Z 5G: which should you buy?
Buy the Galaxy A51 if
- you want to spend less: it starts at £96.95, £8.05 less than the Oppo Reno4 Z 5G
- you want an OLED screen
- you want a higher-resolution front camera (32 megapixels vs 16 megapixels)
Buy the Oppo Reno4 Z 5G if
- you want more RAM (8 GB vs 4 GB)
- you want a smoother screen (120 Hz vs 60 Hz)
- you want 5G
Galaxy A51 vs Oppo Reno4 Z 5G FAQs
Galaxy A51 vs Oppo Reno4 Z 5G comes down to the chipset, RAM and screen size. Chipset: Exynos 9611 on the Galaxy A51, Mediatek Dimensity 800 on the Oppo Reno4 Z 5G. The Oppo Reno4 Z 5G has more RAM: 8 GB vs 4 GB.
The Galaxy A51 is cheaper refurbished, from £96.95 compared with £105 for the Oppo Reno4 Z 5G.
Both have the same battery: 4000 mAh.
Both have the same main camera: 48 megapixels.
The Galaxy A51 no longer gets updates. We don't have published update dates for the Oppo Reno4 Z 5G.
Refurbished, the Galaxy A51 comes in 64GB and 128GB, and the Oppo Reno4 Z 5G in 128GB.
