Redmi Note 9 vs Note 9S vs Note 9 Pro comparison: which one to choose?

redmi note 9 vs note 9s vs note 9 pro

As never before, continuous requests for medium-range devices continue to arrive. In fact, many continually ask themselves what it is smartphone better under a certain amount and, therefore, which is worth buying. Reason why we decided to compare the whole Redmi Note 9 family which, in the last period, has been the real protagonist of a certain price range. Under around 250 euros, in fact, it is possible to take home one of these devices, therefore it becomes important to know which is actually the best choice. We will help you in this, within the comparison between Redmi Note 9, Redmi Notes 9S e Notes redmi 9 Pro.

Redmi Note 9 vs Note 9S vs Note 9 Pro comparison


We don't find many differences regarding the contents of the package of these three smartphones. Inside the sales box of the three products, therefore, we find:

  • Redmi Note 9 / Note 9S / Note 9 Pro;
  • soft transparent TPU cover;
  • USB / USB Type-C cable;
  • wall power supply, with European socket;
  • pin for removing the SIM slot;
  • short instruction manual.

Design & Materials

  • Redmi Notes 9: 162.3 x 77.2 x 8.9 mm for a weight of 199 grams;
  • Redmi Note 9S: 165.75 x 76.68 x 8.8 mm with a weight of about 209 grams;
  • Redmi Note 9 Pro: 165.75 x 76.68 x 8.8 mm with a weight of about 209 grams.

As we can clearly see from these data, Redmi Notes 9S e Note 9 Pro I'm practically identical as for the size and weight. Despite some minimal differences in terms of design, in fact, I cannot note any particular difference between these two products. Different speech, however, for Redmi Note 9 which, in fact, is what shows some really different details, which distinguish it from the other two smartphones. From a first glance, in fact, you immediately notice how this device is equipped with one polycarbonate body, however of excellent quality. The other two terminals, on the other hand, have a glass body.

Redmi Note 9S and Note 9 Pro therefore show the same rear photographic compartment, although the latter shows a different design of the body. Beyond this, however, everything remains unchanged, including the position of the components arranged along the side frame, the latter also worked in the same way. Therefore, there is no shortage of audio jack for headphones, the entrance USB Type-C, main microphone, the system speaker, the SIM slot, IR sensor and secondary microphone, as well as the ON / OFF with biometric sensor integrated and volume rocker. Slightly changes the construction of the minor variant, or Redmi Note 9, which is equipped with a fingerprint sensor located on the back, leaving space on the right frame only for the Power button and the volume rocker. All the other components, however, remain in place, as on the other two models.

These are all differences that change the approach with these smartphones in everyday use. So I found the two older brothers very comfortable, so Note 9S and Note 9 Pro, while Note 9 also due to the biometric sensor on the back is slightly more uncomfortable. At the level of dimensionsinstead, they are all three big enough so you will struggle in the same way to use them with one hand.

Unlocking Systems

These smartphones all offer two main solutions for unlocking the device: biometric sensor e face unlock.

I must say that the differences regarding the face unlock are minimal, always presenting some difficulties in recognizing the face in low light conditions. This problem, therefore, concerns both Redmi Note 9 Pro and Note 9S as well as Redmi Note 9. The situation is different, however, regarding the release via the fingerprint sensor. Note 9S and Note 9 Pro turn out to be much faster than Note 9 in unlocking the product. In fact, these two devices are very reactive, showing practically the same performance.


  • Redmi Notes 9:  LCD da 6.53 "Full HD + (2340 x 1080 pixels) with ratio in 19.5:9, TÜV Rheinland certified, and protected by a screen Gorilla Glass 5;
  • Redmi Note 9S:  LCD da 6.67 "Full HD + (2400 x 1080 pixels) with ratio in 20:9, TÜV Rheinland certified, support HDR10 and protected by a screen Gorilla Glass 5;
  • Redmi Note 9 Pro:  LCD da 6.67 "Full HD + (2400 x 1080 pixels) with ratio in 20:9, TÜV Rheinland certified, support HDR10 and protected by a screen Gorilla Glass 5;

Also in this case, therefore, we find two identical panels on the two most expensive smartphones of the brand in the mid-range. Only Redmi Note 9 it has a slightly lower display, presenting a smaller aspect ratio and the lack ofHDR10. Obviously, if the color calibration is not to your liking, it will be possible to modify it through the relative menu, in the settings. There are, however, no problems from this point of view, even in direct sunlight. All three of these devices respond well in this situation, although they are not excessively bright and rich in contrast. Despite this, the brightness sensor he is quite lazy on these models, not always calibrating the screen backlight well in particular low light conditions.

redmi note 9 vs note 9s vs note 9 pro

I remind you that none of these units have a refresh rate high, all standing on 60Hz. This could testify in favor of the competition, which often does not miss an opportunity to offer its customers smartphones with an even higher refresh rate of the display. I found the management of the holes on these models very bad. Let's see how Redmi Note 9S and 9 Pro are equipped with the same central hole, containing the selfie camera, while on Redmi Note 9 this same component has been moved to the left. All three, however, show the same light bleeding, or the typical halos that form at these holes in the display. I must say, therefore, that on these smartphones this problem is quite marked.

If I had to choose one of these level products therefore, I would get my hands on Redmi Note 9 Pro, although the differences between all these phones are very minimal. I would choose the latter smartphone, in fact, not so much for this reason but because, on the whole, it also offers something more in terms of hardware. But we talk about this in the next paragraph.

Hardware & Performance

  • Redmi Notes 9: MediaTek Helio G85, ARM-G52 MC2 GPU, 6 GB of RAM and 128 GB of expandable storage via microSD;
  • Redmi Note 9S: Qualcomm Snapdragon 720G, Adreno 618 GPU, 4 GB of LPDDR4X RAM and 64 GB of UFS 2.1 storage expandable via microSD;
  • Redmi Note 9 Pro: Qualcomm Snapdragon 720G, Adreno 618 GPU, 6 GB of LPDDR4X RAM and 128 GB of UFS 2.1 storage expandable via microSD;

According to what the company itself shows, Redmi Note 9S and Note 9 Pro are identical on the performance side, and in fact the difference is rather subtle. We had the 4 / 64GB and 6 / 64GB versions on trial respectively, so not the "best" ones. This is why a certain difference is felt between these two smartphones, especially when many applications are opened. I have not noticed, however, any difference in the opening of the apps, in the speed scrolling between pages and, in general, in the level of performance offered.

The situation is different, however, regarding Redmi Note 9 which, in our version from 3GB RAM and 64GB of internal memory, has disappointed expectations. I would have expected slightly better performances but, at present, there are several micro lag, the fluidity is not good and sometimes there are also some sudden closure of the programs. Everything turns out to be quite woody, even during the web browsing, finding myself forced to always give the system a few more seconds to load all the contents on the screen and be able to continue. Therefore, I can only promote the two older brothers.

No particular problem even in viewing videos on YouTube and streaming through Netflix o Amazon Prime Video. On all three smartphones we find the Widevine L1 type certification, therefore all the movies can be played at the highest possible resolution. During the stages of Gaming, then, if Redmi Note 9S and Note 9 Pro do not show any criticality, on Redmi Note 9 I was able to experience a low frame-rate and some instability. You can easily play games with this smartphone on titles like Call of Duty Mobile, only with a few more difficulties.



I have to say that from this point of view it would be practically useless to put the accent on this aspect, given that all three smartphones are equipped with the MIUI 11 of Xiaomi.We leave you, however, below, a summary of the various versions installed inside them :

  • Redmi Notes 9: MIUI Global (QJOEUXM), security patch of 01/06/2020;
  • Redmi Note 9S: MIUI Global (QJWMIXM), security patch of 01/06/2020;
  • Redmi Note 9 Pro: MIUI Global (QJZEUXM), security patch of 01/04/2020.

There is not much to say about this software, therefore, which is identical on these three smartphones. We find, therefore, the same control center of the device and the same type of graphic interface, with the same options. Even on the less expensive variant, namely Redmi Note 9, the brand wanted to provide the same type of user experience, keeping the same rumors.


  • Redmi Note 9: 48MP f / 1.79, 8MP f / 2.2 118 ° wide angle, 2MP macro f / 2.4, 2MP depth of field and Single Tone LED flash. Frontally we have a 13MP f / 2.25 sensor;
  • Redmi Note 9S: 48MP f / 1.79, 8MP f / 2.2 119 ° wide angle, 5MP f / 2.4 macro, 2MP depth of field and Single Tone LED flash. Frontally we have a 16MP f / 2.5 sensor;
  • Redmi Note 9 Pro: 64MP f / 1.89, 8MP f / 2.2 119 ° wide angle, 5MP f / 2.4 macro, 2MP depth of field and Single Tone LED flash. Frontally we have a 16MP f / 2.48 sensor;

redmi note 9 vs note 9s vs note 9 pro

Even before starting I want to make things clear: I used the same settings on all smartphones, keeping the automatic HDR active and deactivating the AI ​​(I activated it only in some cases, which however have been reported).

Let's first take a look at the shots taken with good lighting, during the daytime hours. We note, in fact, how Redmi Note 9 Pro shows a better quality, also for the number of details reproduced. Follows the Note 9S, which has very few differences and one color calibration who differs only slightly from his older brother. We also have Note 9 in the last position which, in fact, is the one that suffers a little more from this point of view, offering higher photographic noise and greater color contrast. The same considerations apply, therefore, for it zoom 2x and for wide-angle lens. The latter, however, did not particularly impress me on any of these smartphones. Good macros of Note 9 Pro and Note 9S, which are able to reproduce many details and a good color balance, without overexposing the image in very bright light conditions.

Di notte the quality drops and Redmi Note 9 can no longer keep up with the other two models. You notice, in fact, a really marked photographic noise that tends to mix all the colors and the contours of the photo. Better than the other two smartphones, including Note 9S, which defends itself quite well especially with the night mode, although not equaling Note 9 Pro. The latter model, in fact, tends to want to show every corner of the image, even the most hidden ones, illuminating the scene a lot and undermining the system. Despite this, however, the photos obtained with the Night Mode they are quite good, even if they suffer too much from artificial lighting.

Looking better i Selfie, then, we notice how the difference in this case is really minimal between these models. I have not experienced any particular problems with any of these smartphones that are equivalent in this respect. They all mount very similar sensors and this is clearly seen from the shots taken in these days. Although the beauty filter has been deactivated from the first moment, it seems that this continues to act slightly, smoothing the skin. Beyond that, however, the photos are more than fair, with a good amount of detail reproduced on the screen and a good balance of light. Not bad, then, therebokeh effect of all these phones, even Redmi Note 9 that with the selfie camera does not suffer much.

As for videos, I invite you to take a look at the review on YouTube to see how smartphones have behaved:

  • Redmi Notes 9: recording up to 1080p at 30fps;
  • Redmi Note 9S: recording up to 4k at 30 fps;
  • Redmi Note 9 Pro: recording up to 4k at 30 fps.

Audio & Connectivity

At the level audio I have to say that Redmi Note 9S and Note 9 Pro are on a higher step than Note 9, although I would have expected a bigger gap. With the latter, in fact, the sounds are darker and the individual frequencies are not well distinct from each other. Better with Redmi Note 9S and Note 9 Pro which, probably, also mount the same type of lower speaker, since the quality and management of the bass are almost identical. I remind you, in any case, that all these three smartphones are equipped with one mono speakertherefore in general the yield is not entirely satisfactory. The situation is different, however, with a pair of earphones, also wired, since these devices are equipped with a 3,5mm jack input.

Regarding connectivity, I leave below a brief summary of all the components present:

  • Redmi Notes 9: dual SIM 4G LTE, Wi-Fi a / b / g / n / ac Dual Band, Bluetooth 5.0, GPS / A-GPS / Glonass / Beidou / Galileo, IR sensor, FM radio, NFC and 3.5mm jack input;
  • Redmi Note 9S: dual SIM 4G LTE, Wi-Fi a / b / g / n / ac Dual Band, Bluetooth 5.0, GPS / A-GPS / Glonass / Beidou / Galileo, IR sensor, FM Radio, and 3.5mm jack input;
  • Redmi Note 9 Pro: dual SIM 4G LTE, Wi-Fi a / b / g / n / ac Dual Band, Bluetooth 5.0, GPS / A-GPS / Glonass / Beidou / Galileo, IR sensor, FM radio, NFC and 3.5mm jack input;

We must be cautious on the issue NFC, because it seems that Redmi Notes 9S it does not have it. I do not explain this choice on the part of the company, which by now should have understood the importance of such a component. In my opinion, in fact, it is essential in a smartphone. A difficult choice to understand, therefore, since currently on Note 9 it is present.

From the point of view of connectivity I can say that I had some small problems with the Wi-Fi, especially with Redmi Note 9 Pro. In the past few days, a further small update has arrived that should have fixed things, and in fact I have no longer accused too many problems from this point of view. It seems that the whole series, however, is plagued by these problems related to Wi-Fi, even if on the two smaller smartphones, therefore Note 9S and Note 9, I have not encountered any problems. On these smartphones, in fact, the reception is good but not exceptional, showing difficulties in the less covered areas of the house. In external environments, then, we come to the rescue LTE network, which allows us to travel also in 4G +thus managing to guarantee a stable and fast connection.

With the GPS I have always been able to navigate the city quite precisely. All the smartphones in this series have therefore proven to live up to expectations, although Note 9 only shows a certain slowness in attaching to the satellites, especially compared to the other two older brothers.

Redmi Note 9S was the only one to show any problems with the proximity sensor. During the various tests, in fact, he continued to order me to clear the area in front of the smartphone, declaring to hear something in front of it. This happened often, even when the phone was resting on the desk. I cannot say, however, that this problem has lasted long. A few days ago, in fact, a new update arrived that seems to have fixed this bug. It has therefore no longer happened that the device showed this anomaly.


  • Redmi Notes 9: 5.020 mAh. 22,5W power supply;
  • Redmi Note 9S: 5.020 mAh. 22,5W power supply;
  • Redmi Note 9 Pro: 5.020 mAh. 33W power supply.

These smartphones all have an excellent battery, which guarantees autonomy to scream. With none of these smartphones I had difficulty arriving in the evening after a working day, totaling more than 7 hours and 30 minutes of active screen. It seems that this series is really one of the best ones in this respect, so if you are looking for excellent performance in this sector, take it absolutely into consideration.

We are faced with three products that fit the same battery. Two of these phones are practically identical on the hardware side, while Note 9 is slightly different, mounting a Helio G85. Despite this, the autonomy does not vary much, as it is possible to easily reach more than 7 hours and 30 minutes of active screen, with a mixture of Wi-Fi and 4G.

Price & Conclusions

We have come to the end of this comparison but, before reaching any kind of conclusion, let's have a look at availability and prices. In the event that there is some discount, or a coupon to be redeemed, you will surely be informed through our Telegram channels, which we invite you to follow.

  • Redmi Notes 9: 3/54 GB approx 122 €, the 4/128 GB a 159 €;
  • Redmi Note 9S: 4/64 GB approx 154 €, the 6/128 GB a 189 € shipped from Europe;
  • Redmi Note 9 Pro: 6/64 GB approx 199 €, 6/128 to about 229 €.

Redmi Note 9 Pro is finally available on EDwaybuy! Take advantage of our coupon to take it home at a special price!

More Less

Redmi Note 9 Pro is available, in the 6 / 64GB version, on EDwaybuy! Buy it now with our coupon!

More Less

Redmi Note 9 is available on EDwaybuy. Buy it through our coupon!

More Less
159 €

Redmi Note 9S is available on EDwaybuy, in the 4 / 64GB version. Buy it with our coupon!

More Less

Therefore, it is not easy to recommend one of these products, because they belong to different categories and price ranges. If I had to bet my money on one of these products, however, I would definitely choose Redmi Note 9 Pro which, in general, is what convinced me most. Note 9, in fact, in the 3GB version of RAM is quite limited, so I would definitely go on the 4GB version. Despite this, however, I don't think that the whole hardware can offer much more than what it already puts on the field. Note 9S would, on the other hand, be an excellent product but does not mount NFC, one of those components that, at least as far as I'm concerned, has become indispensable.

Before making any decision, therefore, make all the necessary assessments.