Modern design, fast performance

Oppo Reno4 Z 5G is the cheapest 5G phone model in the 4th generation Reno series. Unlike the other 2 models in the same family, Oppo Reno4 Z 5G is equipped with Mediatek Dimensity 800 chip instead. because of the Snapdragon 765G series of chips. However, similar to the series of phones using the same chip that we reviewed earlier, the Mediatek Dimensity 800 is a good chip and can give users a smooth user experience.

The machine is equipped with a 6.57-inch LCD screen, supporting a refresh rate of up to 120Hz. Oppo Reno4 Z 5G is equipped with a camera cluster with a total of 3 lenses, which includes the main camera with 48MP resolution, 8MP ultra-wide-angle camera and 2MP macro camera. Combined with this camera cluster, there is also a depth sensor with 2MP resolution.

Overall, the Oppo Reno4 Z 5G is a phone with good build quality and finish. Will these strengths help Oppo Reno4 Z 5G compete on par with other competitors in the market? The answer will be in today’s article.

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Oppo Reno4 Z 5G Specifications

  • Screen: 6.57-inch IPS LCD 2400 x 1080 pixels
  • CPU: MediaTek Dimensity 800
  • RAM: 8GB
  • Rear camera: 48MP + 8MP + 2MP + 2MP
  • Front camera: 16MP
  • Internal memory: 128GB
  • Size: 163.8 x 75.5 x 8.1mm
  • Mass: 184 g
  • The battery: 4,000 mAh

Oppo Reno4 Z 5G

Oppo Reno4 Z 5G: Design

Reno4 Z 5G owns a camera cluster with a rather unique design, with 4 lenses arranged in a square, combined with a diagonal cutting edge of this camera cluster. As the cheapest version in the series, the back of the Reno4 Z 5G is made entirely of plastic.

The version of the device that we used in the review has the main color tone is white, but depending on the amount of light reflected, this back can emit pink and light blue tones. Looking closer, you can see the carefully finished stripe texture on the bottom of the phone’s back.

The surface of the back is matte finished, increasing the resistance to fingerprints during use. Similar to the back, the frame of the device is also made of plastic, with a polished finish.

The phone is equipped with a capacitive fingerprint sensor on the side, which helps you to log in to the system account through a biometric code. This sensor is integrated inside the power button, which is placed slightly below the surface of the chassis. Placed slightly above the center position, you can easily use your thumb to unlock the phone.

Located on the opposite edge is a cluster of volume up and down buttons, with a high level of finishing and good bounce. Right above is the SIM card slot. This slot can hold up to 2 nano SIM cards and is not capable of accepting microSD cards.

The bottom edge of the phone is home to a USB Type-C connector, speakerphone strip, main mic and 3.5mm headphone jack. Located on the top edge is equipped with a single secondary microphone.

The front of the machine is an overflow screen with a diagonal size of 6.57 inches. The bottom edge of the screen is slightly thicker than the other 3 edges. Located in the left corner of the screen is a capsule-shaped hole to make room for the selfie camera cluster. This lens cluster includes a main selfie camera with 16MP resolution and a 2MP depth sensor.

With 3-dimensional dimensions of 163.8 x 75.5 x 8.1mm, the length of Reno4 Z 5G is 0.8mm larger and much wider when compared to its competitor, the OnePlus Nord N10 5G. Meanwhile, Mi 10T Lite 5G is 1.6mm longer and 1.3mm wider.

Oppo Reno4 Z 5G

Oppo Reno4 Z 5G: Screen

Reno4 Z 5G is equipped with a screen with a diagonal size of 6.57 inches, a resolution of 2400 x 1080 pixels, a 20: 9 aspect ratio and a pixel density of 401 ppi. The strength of this screen lies in the high refresh rate index, specifically 120Hz.

According to the manufacturer, Reno4 Z 5G has a theoretical maximum brightness level of 480 nit, similar to the Realme 7 5G. However, unlike Realme, the screen of Reno4 Z 5G has a much lower actual brightness level, with a maximum recorded index of 400 nit. The brightness of the device is also not increased when used in many ambient light conditions. In return, the screen of the machine has a pretty good contrast index for LCD panels, specifically 1300:1.

With the ability to support up to 120Hz refresh rate, Reno4 Z 5G has a total of 4 different settings in the settings section, giving you the freedom to choose to best suit your individual needs. Options include “Auto”, 120Hz, 90Hz, and 60Hz. Of these options, “60Hz” is the simplest option, which locks the screen refresh rate down to 60Hz regardless of the type of content being displayed on the screen.

The remaining modes come with a few exceptions and limitations, but the basic point is as follows – for 2 modes 120Hz and Auto, the machine will maintain the screen refresh rate at 120Hz throughout the entire time. interface set. The Camera application of the device supports 120Hz refresh rate in both modes. The Video application will be locked at 90Hz if you select the 120Hz mode, but will reduce it to 60Hz if you select the Auto item.

Oppo Reno4 Z 5G

Oppo Reno4 Z 5G: Battery life

Reno4 Z 5G is equipped with a battery with a capacity of 4000 mAh inside. This used to be an acceptable battery level for previous-generation models, but with new features such as 5G network connectivity and high-frequency screens, these models are often equipped with a battery. batteries have a larger capacity.

In our test, the Reno4 Z 5G lasted more than 20 hours in the phone call test condition. This result is not too impressive, but still within an acceptable level.

Reno4 Z 5G comes with a charger with a capacity of 18W. The device has a relatively fast charging speed, which can be fully charged in less than 2 hours. When charging the battery from 0%, the device can recharge 35% of the battery after only half an hour.

Oppo Reno4 Z 5G: Performance

Dimensity 800 is the chip that takes care of all the processing tasks of Reno4 Z 5G. This is a mid-range chip manufactured by MediaTek, also known as MT6873V. The chip is composed of 8 processor cores, including 4 Cortex-A76 cores and 4 Cortex-A55 cores. In terms of graphics, the chip is integrated with Mali-G57 GPU.

At the time of writing, Oppo Reno4 Z 5G was released with only 1 configuration version, which is 8GB of RAM and 128GB of internal memory.

In actual use, the Oppo Reno4 Z 5G delivers a level of speed performance that can handle all day-to-day tasks with ease and smoothness.

Oppo Reno4 Z 5G: Camera

Reno4 Z 5G is equipped with a camera cluster with 4 lenses on the back. However, similar to most of the mid-range and low-cost phones that we often see on the market, only 2 of them are real cameras, while the other 2 are only used for color.

The first real camera of the device has a resolution of 48MP, using a Sony IMX 586 Quad Bayer sensor with a pixel size of 0.8µm, capable of capturing images at the default resolution of 12MP through pixel binning. . The sensor is placed behind a lens with a focal length of 26mm and an aperture of f/1.7.

The second camera of the device is an ultra-wide angle type, with a resolution of 8MP. According to the manufacturer, this camera is capable of covering a maximum shooting angle of 119 degrees. Overall, the Reno4 Z 5G delivers pretty good photo quality in well-lit conditions.


Reno4 Z 5G is a good choice if you are looking for a phone capable of supporting 5G networks, sold in the mid-range price segment. However, to cut costs, Oppo has reduced the quality of a few details, including the screen and battery life. However, Reno4 Z 5G still has many plus points, including high screen refresh rate, good performance and modern design.

See more: Review of Realme 8 5G: The cheapest 5G phone on the market

Plus mark

  • Support 5G network connection
  • 120Hz screen
  • Speed ​​performance
  • The main camera has good photo quality

Minus point

  • Screen brightness is only in the mid-range
  • Battery life is not really impressive

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