Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S
Shop Android Smartphones
Oppo Reno4 Z 5G
Starting at
£105.00
Xiaomi Redmi Note 9S
Starting at
£115.00What's the difference between the Oppo Reno4 Z 5G and Xiaomi Redmi Note 9S?
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S comes down to the chipset, RAM and battery. Refurbished, the Oppo Reno4 Z 5G starts at £105, £10 less than the Xiaomi Redmi Note 9S.
Refurbished from
Chipset
RAM
Battery
Screen size
Mobile network
- Chipset: Mediatek Dimensity 800 on the Oppo Reno4 Z 5G, Qualcomm SM7125 Snapdragon 720G (8 nm) on the Xiaomi Redmi Note 9S.
- The Oppo Reno4 Z 5G has more RAM: 8 GB vs 4 GB.
- The Xiaomi Redmi Note 9S has a bigger battery: 5020 mAh vs 4000 mAh.
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S specs
The Oppo Reno4 Z 5G and Xiaomi Redmi Note 9S both launched in 2020 and share many features like screen resolution and camera megapixels. Oppo offers 5G connectivity and more RAM at 8 GB, making it suitable if you want faster mobile networks and smoother multitasking. Xiaomi has a larger battery and a microSDXC slot for expandable storage, which suits users who prioritise longer battery life and extra storage flexibility. Xiaomi also has a slightly bigger screen and is heavier, which might appeal if you prefer a larger display and don't mind the extra weight. Both phones run Android and come unlocked with dual SIM slots, fitting a variety of everyday needs.
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S price
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Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S battery life and software updates
Durability for these two devices involves battery size and software update support. Both use Android and were released in 2020. Battery capacity affects how long you can use the phone between charges.
Battery Capacity
The Xiaomi Redmi Note 9S has a 5020 mAh battery, which provides more power for longer use between charges. The Oppo Reno4 Z 5G has a 4000 mAh battery, which still offers solid daily use but with less overall capacity.
Software Updates
Both run Android but won't receive the newest system versions.
Battery
Foldable
Year of release
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S performance
Performance depends on chipset, RAM, and storage options. Both devices offer a good balance for everyday apps, but differences in RAM and chipsets may suit different users.
RAM and Multitasking
The Oppo Reno4 Z 5G comes with 8 GB of RAM, which helps keep more apps open and improves multitasking. The Xiaomi Redmi Note 9S has 4 GB of RAM, suitable for everyday use but with fewer apps running simultaneously without reloads.
Chipset
Oppo Reno4 Z 5G uses the Mediatek Dimensity 800 chipset, while Xiaomi Redmi Note 9S has the Qualcomm SM7125 Snapdragon 720G (8 nm). Both chipsets handle daily tasks well, but the difference may affect performance in specific apps or network use.
Storage Options
Oppo Reno4 Z 5G is stocked with 128GB storage, which provides ample space for apps and media. Xiaomi Redmi Note 9S offers both 64GB and 128GB models, giving a choice depending on how much storage you need.
Chipset
RAM
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S screen
Both phones have IPS LCD screens with the same resolution but differ slightly in size. Screen size affects how much you see and how comfortable it is for video or reading.
Screen Size
The Xiaomi Redmi Note 9S has a 6.67 inch screen, which is a bit larger and better suited if you want more room for video, gaming, or reading. Oppo Reno4 Z 5G has a 6.57 inch screen, still offering a good viewing area but slightly more compact.
Refresh rate
Resolution
Screen size
Screen type
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S camera
Camera quality and front camera resolution are identical on both phones, making them equally capable for photos and video calls.
Camera Resolution
Both the Oppo Reno4 Z 5G and Xiaomi Redmi Note 9S have 48 megapixels on the main camera and 16 megapixels on the front camera. This means both phones capture similar detail for photos and selfies.
Front camera
Main camera
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S size and design
Several additional features vary that might influence your choice depending on what you value in a phone's network, size, and storage expandability.
Mobile Network
The Oppo Reno4 Z 5G supports 5G networks, suitable if you want faster mobile data speeds where 5G is available. The Xiaomi Redmi Note 9S supports 4G, which covers widespread network availability.
Storage Expansion
The Xiaomi Redmi Note 9S includes a microSDXC slot, allowing you to add more storage with a memory card. This option suits those who want extra space for media or files beyond the built-in storage.
Dimensions and Weight
Oppo Reno4 Z 5G is slimmer at 8.1 mm depth and lighter at 184 g, making it easier to handle and carry. Xiaomi Redmi Note 9S is slightly larger with a depth of 8.8 mm and heavier at 209 g, which may feel more substantial in hand.
SIM Card and Carrier
Both phones come unlocked with dual physical SIM slots, allowing use with two networks or phone numbers at once.
Carrier compatibility
Connector
Depth
Height
Mobile network
SD card slot
SIM card
Weight
Width
Oppo Reno4 Z 5G or Xiaomi Redmi Note 9S: which should you buy?
Buy the Oppo Reno4 Z 5G if
- you want to spend less: it starts at £105, £10 less than the Xiaomi Redmi Note 9S
- you want more RAM (8 GB vs 4 GB)
- you want 5G
Buy the Xiaomi Redmi Note 9S if
- you want a bigger battery (5020 mAh vs 4000 mAh)
- you want a memory card slot
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S FAQs
Oppo Reno4 Z 5G vs Xiaomi Redmi Note 9S comes down to the chipset, RAM and battery. Chipset: Mediatek Dimensity 800 on the Oppo Reno4 Z 5G, Qualcomm SM7125 Snapdragon 720G (8 nm) on the Xiaomi Redmi Note 9S. The Oppo Reno4 Z 5G has more RAM: 8 GB vs 4 GB.
The Oppo Reno4 Z 5G is cheaper refurbished, from £105 compared with £115 for the Xiaomi Redmi Note 9S.
The Xiaomi Redmi Note 9S has a bigger battery: 5020 mAh vs 4000 mAh.
Both have the same main camera: 48 megapixels.
Refurbished, the Oppo Reno4 Z 5G comes in 128GB, and the Xiaomi Redmi Note 9S in 64GB and 128GB.
