Realme 9 4G Mid-Segment Smartphone Review (RMX3521)

Table of Contents

Contents of delivery

  • Smartphone
  • SuperDART 33W fast charging with USB Type C cable
  • Tray clip
  • Silicone Case
  • Instruction
  • Warranty card


Dimensions and weight 160.2 x 73.3 x 8mm, 178g
Housing materials Protective glass front (Corning Gorilla Glass 5), plastic frame, plastic back
Display 6.4 inches, 2400×1080 pixels (Full HD +), SuperAMOLED, refresh rate 90 Hz, aspect ratio 20:9, pixel density 411 ppi, peak brightness 1000 nits, AlwaysOn Display
Operating system Google Android 12, realme UI 3.0 proprietary shell
Platform Qualcomm Snapdragon 680 (6nm), Adreno 610
Memory 6/128 GB (Russian version) or 8/256 GB, memory cards up to 256 GB
UFS 2.2
Wireless interfaces Wi-Fi a/b/g/n/ac 2.4/5 GHz, Wi-Fi 5, Bluetooth 5.1 (SBC, AAC, APTX, APTX HD, LDAC), NFC
Audio 3.5 mm jack
stereo speakers
Net 2G: GSM850/900/1800/1900
3G: WCDMA bands 1/5/8
4G: LTE TDD bands 38/40/41(2535-2655MHz)
4G: LTE FDD bands 1/3/5/8
Two Nano SIM cards
Navigation GPS, AGPS, GLONASS, GALILEO, Beidou
Sensors and connectors Optical fingerprint scanner (in-screen), accelerometer, ambient light sensor, proximity sensor, Hall sensor
Main camera 108 MP, 1/1.67”, 0.64µm, f/1.8, 84.4° Dual Pixel PDAF
Wide-angle 8 MP, 1/4″, 1.12 µm, f/2.2, 119.7°
Macro 2 MP, 1/5″, 1.75µm, f/2.4, 88.8°
Front-camera 16MP Sony IMX471
1/3″, 1.0 µm, F/2.4, FF, 5 lenses, 78°
Battery Li-ion 5000 mAh, SuperDart 33W fast charging, Quick Charge and Power Delivery support, charging time up to 100% in 75 minutes, 50% in 31 minutes
Color Yellow (texture changes color under different lighting and angles)
The black
Price from 21 000 rubles


For realme, the segment from 20 to 25 thousand is extremely important, the company has the main sales here, plus these devices are in high demand on the market today. Therefore, realme creates a lot of the same type of models, which have the same basic characteristics (screen, battery), but cameras, design, processor vary. Creating diversity allows you to attract new customers, plus, by emphasizing unusual design, you can highlight new devices. The company is in a situation where it is increasing its sales by expanding its product range. For example, the realme 9 4G in question is a simplified copy of the realme 9 Pro.

From a marketing point of view, the emphasis in this model is on the design, as well as on the affordable 108 megapixel module from Samsung, which is an achievement for this price segment. In short, the buyer will feel that he has a lot of megapixels, a good screen and a big battery. All this at a price of just over 20 thousand rubles, which makes the device extremely attractive in terms of price / quality ratio.

Design, dimensions, positioning

The model is available in three colors – white, yellow (such in the review, with a holographic back), and black.

I really like how the body was played with, it is bright, in the light and in the dark the perception of the device is different, it is attractive. Brightness is a middle name for this smartphone.

For those who want to save the device, a case is included. It is dark, so the case in it looks muffled, it does not play in the light, it is rather a minus.

Dimensions of the device are typical for such a screen – 160.2 x 73.3 x 8 mm, weight – 178 grams. There is a hint of rounding at the back, but the edge is sharp, and the device crashes into the hand. In the case it is completely invisible.

The protective film on the screen is a realme corporate identity, but it quickly becomes unusable, it is easier to peel it off. And then you will need to put something of your own in order to protect the display.

On the back you see a plastic insert around the camera block, it is quite pleasant. In some ways, the device subtly resembles the iPhone.

The controls are located as follows. On the left side are the volume keys. There is also a tray for two nanoSIM cards and a memory card (the device does not support eSIM). On the right side is the on/off button.

On the bottom end you can see a USB Type C connector, a 3.5 mm jack, a microphone and a speaker right there, the second microphone was moved to the upper end. The top speaker is on the front panel above the screen. Stereo in this model was implemented, quite loud and well distinguishable.

The frame of the device is made of plastic, but there is no such feeling. The fingerprint sensor is built into the screen, works quickly and flawlessly. But I prefer face unlock, I use it.

There are no complaints about the build quality of the device, everything is on the level, there is nothing to complain about.


Let me briefly list the technical specifications: 6.4 inches, 2400×1080 pixels (Full HD +), SuperAMOLED, refresh rate 90 Hz, ratio 20: 9, pixel density 411 ppi, peak brightness 1000 nits, AlwaysOn Display.

In the settings, you can turn on a constant frequency of 90 Hz, or you can set it to turn on in automatic mode, the second is preferable, since the battery power will be noticeably less.

I like the AoD feature, the splash screens and clock options are good. But if the device lies motionless for some time, the screen goes blank. I also note the low brightness in this mode, it is clearly not enough. In the new version of the shell, interesting features were added to AoD – you can put a mascot from realme, or you can put the outline of a person that is obtained from a photo.

I can’t say that the screen matches the flagships from Samsung or Apple, where there are also displays from Samsung. But for its price range, the screen is excellent, it has everything you need for life.

In the sun, the peak brightness can reach 1000 nits, the screen remains readable, everything is fine. But the film, of course, interferes, and it should be removed. In general, a good screen for a device of this class.


The built-in battery has a capacity of 5000 mAh. The included 33W Dart charger will give you 51% charge in 30 minutes and 100% in 75 minutes. It has been tested in practice and it works.

The device works on average for one and a half to two days with 4-5 hours of screen – indicators typical for such a smartphone.

Memory, chipset, performance

The device is available in Russia in the 6/128 GB version. The chipset from Qualcomm is mid-range, but it is sufficient for such a model, covering all possible needs.

In life, the model has proven itself well, and if you do not play heavy games at maximum settings, then the device will not heat up at all, it copes with all tasks with a bang.

Communication options

The lack of 5G support should not be a concern, rather, you need to look at the number of 4G frequencies, their aggregation. And here everything is noticeably worse than in realme 9 Pro, but for those who do not download dozens of GB in a short time, this will not play a role.

Also on board there is Wi-Fi 5, Bluetooth 5.1, NFC is supported. I can’t say anything bad about navigation, the device determines your location well, there are no mistakes here.


The emphasis is on using the main module from Samsung with a resolution of 108 megapixels and stabilization. High resolution is not a guarantee of amazing shots, the device shoots exactly as you would expect in this price segment. There are both HDR and AI, they noticeably recolor the pictures. Street mode is an additional shooting mode in which the camera applies more filters.

The AI ​​Color Portrait mode looks spectacular, which allows you to highlight shades of red, blue or green when shooting a video, while recording a video, you can also take still pictures. In general, there are a lot of modes for photo and video shooting, whether it is recording on two cameras at the same time, the “Movie” mode with professional settings, or shooting the starry sky with a long exposure. There is where to turn around, and the camera software helps you quickly figure it out.

The main lens accompanies a mediocre “ultra-wide” with stable operation and a tuned dynamic range. An additional sensor for macro photography, it is very simple.

All the same, one front camera is used, the image quality is normal.


Inside Android 12, on top is realme UI 3.0. A rather pleasant interface, there are no special frills in it, but you can use it comfortably, although in some places it is overloaded. Look at the interface examples.


The quality of communication is at a good level, the call is loud and bright, the vibration is excellent (trembling with a small demon). The 6/128 GB model costs from 22 thousand rubles. For these characteristics, an excellent offer, there is nothing to complain about, a fair price. There are many direct competitors on the market, let’s start with the fact that there is the same realme 9 Pro, the price difference is a thousand rubles.

A good option is the Poco M4 Pro, in the same configuration it costs about a comparable amount. A good option for those who want a device from Xiaomi.

The choice of a device in this segment is always a search for a golden mean when you need to sacrifice something in order to get a good value. And here I will express a paradoxical thought: those who believe that megapixels are equal to the quality of images will be satisfied. But buying realme models with other modules will give no worse, and often better quality. So here it is worth thinking about what you need. Overall, this smartphone is another building block in realme’s success in the market. A good option for those looking for a mid-range model.

The article is in Russian

Tags: Realme MidSegment Smartphone Review RMX3521

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