Galaxy A21 vs Oppo Reno4 5G
Shop Samsung Galaxy
Galaxy A21
Starting at
£120.18£152.00 new
Oppo Reno4 5G
Starting at
£129.00What's the difference between the Galaxy A21 and Oppo Reno4 5G?
Galaxy A21 vs Oppo Reno4 5G comes down to the chipset, RAM and screen size. Refurbished, the Galaxy A21 starts at £120.18, £8.82 less than the Oppo Reno4 5G.
Refurbished from
Chipset
RAM
Screen size
Screen type
Main camera
- Chipset: Mediatek MT6765 Helio P35 (12 nm) on the Galaxy A21, Qualcomm SM7250 Snapdragon 765G 5G (7 nm) on the Oppo Reno4 5G.
- The Oppo Reno4 5G has more RAM: 8 GB vs 3 GB.
- Screen size: 6.5 inch on the Galaxy A21, 6.43 inch on the Oppo Reno4 5G.
Galaxy A21 vs Oppo Reno4 5G specs
The Galaxy A21 and Oppo Reno4 5G, both released in 2020, differ in several key areas suited to different users. The Oppo Reno4 5G offers a sharper AMOLED display and higher resolution, making it a better choice for those who value screen quality and detail. It also includes more RAM and storage, which helps keep apps running smoothly and provides more space for files. The Galaxy A21 provides microSDXC support for extra storage and a lighter weight, which suits users who prefer expandable memory and a lighter device. The Oppo Reno4 5G supports 5G networks and dual SIM cards, which is useful for those needing faster mobile data and more connectivity options.
Galaxy A21 vs Oppo Reno4 5G price
Colour
- BlueSold out
Storage
- 128GBSold out
Galaxy A21 vs Oppo Reno4 5G battery life and software updates
Durability covers battery capacity, software updates, and basic design features. These factors shape how long you can expect daily use and software experience.
Battery Capacity
Both the Galaxy A21 and Oppo Reno4 5G have a 4000 mAh battery. This means they offer similar endurance for everyday use, whether you are browsing, streaming, or making calls.
Software Updates
This means the software each device runs will remain as initially provided without access to the newest system features.
Battery
Foldable
Software updates
Year of release
Galaxy A21 vs Oppo Reno4 5G performance
Performance depends on the chipset, RAM, and storage options. These affect how smoothly apps run, how many tasks you can handle at once, and how much data you can store.
Processor Technology
The Galaxy A21 is powered by a Mediatek MT6765 Helio P35 chipset built on 12 nm technology, while the Oppo Reno4 5G uses a Qualcomm SM7250 Snapdragon 765G 5G chipset built on 7 nm technology. The Snapdragon 765G offers newer fabrication technology which can support better efficiency and performance for demanding tasks.
Memory Capacity
The Galaxy A21 comes with 3 GB of RAM, suitable for everyday use and running standard apps. The Oppo Reno4 5G includes 8 GB of RAM, which helps keep multiple apps open and running smoothly.
Storage Size
The Galaxy A21 has 32 GB of internal storage, while the Oppo Reno4 5G offers 128 GB. More storage on the Oppo Reno4 5G means you can keep more apps, photos, and media without managing space frequently.
Chipset
RAM
Galaxy A21 vs Oppo Reno4 5G screen
Screen quality affects how you experience videos, photos, and apps. Differences in resolution, size, and screen type influence clarity, colour richness, and viewing comfort.
Screen Resolution
The Galaxy A21 has a resolution of 720 by 1600, while the Oppo Reno4 5G offers a higher resolution of 1080 by 2400. The higher resolution on the Oppo Reno4 5G means images and text will appear sharper.
Screen Size
The Galaxy A21 features a 6.5 inch screen, slightly larger than the Oppo Reno4 5G's 6.43 inch display. A larger screen is more spacious for watching videos or browsing.
Screen Type
The Galaxy A21 uses an IPS LCD screen, which provides clear and consistent colours. The Oppo Reno4 5G uses an AMOLED screen, known for deeper colour contrast and more vibrant images.
Refresh rate
Resolution
Screen size
Screen type
Galaxy A21 vs Oppo Reno4 5G camera
Audiovisual features cover camera capabilities on the front and back, which affect how detailed your photos and video calls are.
Front Camera
The Galaxy A21 has a 13 megapixel front camera, suitable for standard selfies and video chats. The Oppo Reno4 5G has a 32 megapixel front camera, capturing more detail for clearer self-portraits.
Main Camera
The main camera on the Galaxy A21 is 16 megapixels, while the Oppo Reno4 5G offers 48 megapixels. Higher megapixels on the Oppo Reno4 5G allow for photos with more detail and clarity.
Camera type
Front camera
Main camera
Galaxy A21 vs Oppo Reno4 5G size and design
Other practical features include network compatibility, SIM options, connectors, expandable storage, and device weight. These affect connectivity, flexibility, and handling.
Mobile Network
The Galaxy A21 supports 4G networks, suitable for everyday internet use. The Oppo Reno4 5G supports 5G networks, offering faster data speeds where 5G is available.
SIM Card Options
The Galaxy A21 uses a single physical SIM card. The Oppo Reno4 5G has dual physical SIM slots, useful for managing two numbers or carriers on the same device.
Expandable Storage
The Galaxy A21 supports microSDXC cards for expanding storage. The Oppo Reno4 5G does not support expandable storage, so you rely on built-in space.
Device Weight
The Galaxy A21 weighs 159 g, making it lighter to hold. The Oppo Reno4 5G weighs 183 g, which may feel more substantial in the hand.
Connector Type
The Galaxy A21 uses USB Type-C 2.0, while the Oppo Reno4 5G uses USB-C. These are standard connectors for charging and data transfer.
Carrier compatibility
Connector
Depth
Height
Mobile network
SD card slot
SIM card
Weight
Width
Galaxy A21 or Oppo Reno4 5G: which should you buy?
Buy the Galaxy A21 if
- you want to spend less: it starts at £120.18, £8.82 less than the Oppo Reno4 5G
- you want a lighter build (159 g vs 183 g)
- you want a memory card slot
Buy the Oppo Reno4 5G if
- you want more RAM (8 GB vs 3 GB)
- you want an OLED screen
- you want a higher-resolution main camera (48 megapixels vs 16 megapixels)
Galaxy A21 vs Oppo Reno4 5G FAQs
Galaxy A21 vs Oppo Reno4 5G comes down to the chipset, RAM and screen size. Chipset: Mediatek MT6765 Helio P35 (12 nm) on the Galaxy A21, Qualcomm SM7250 Snapdragon 765G 5G (7 nm) on the Oppo Reno4 5G. The Oppo Reno4 5G has more RAM: 8 GB vs 3 GB.
The Galaxy A21 is cheaper refurbished, from £120.18 compared with £129 for the Oppo Reno4 5G.
Both have the same battery: 4000 mAh.
The Oppo Reno4 5G has a higher-resolution main camera: 48 megapixels vs 16 megapixels.
The Galaxy A21 no longer gets updates. We don't have published update dates for the Oppo Reno4 5G.
Refurbished, the Galaxy A21 comes in 32GB, and the Oppo Reno4 5G in 128GB.
