Brands fare still on a race to see who launches the more devices even though they are very similar physically and technically. After the Redmi Note 7 was successful, Xiaomi released even more Redmi Note 8 variants 0:00:20.260,0:00:22.460and now it does the same with the Redmi Note 9. We have already analyzed all these phones, and the conclusion is that the Redmi Note 9S is the true successor to the line that brings one of Xiaomi’s most cost-effective – sometimes. They didn’t come cheap, but it might be worth it to choose the new one instead of last year’s 8. It will be? Are you curious to find this out? Then follow our conclusions in this comparison here at We have two intermediate smartphones in the race – in the material they have the body and plastic frame with the Gorilla Glass 5 glass back. The Note 9S follows that general fashion and its rear and edges are well rounded but the two end up slipping a lot in the hand. The edges of the Note 9S are matte, while those of the Note 8 mimic shiny metal. Note 8 has features from last year and has a straight back with corners slightly rounded – it also brings the trend of cameras in traffic light layout in one of the corners, one more thing from last year, while the Note 9S brings the rectangular module widely used this year, only centralized. While there is no protection in Note 8, the newer model already has a higher investment and brings splash protection.

 The edges around the screen did not diminish from one to the other, but the notch went from drop to drop to a hole in the center, which ends up being more discreet. The biometrics are also different, and while standing on the back of the Note 8 it went sideways on the Note 9S This is a very interesting thing but it is a position that not everyone can appreciate mainly lefties. Both are dual-sim and have a dedicated MicroSD slot. Finally, in size, the Note 9S is bigger, thicker and heavier than the Note 8 partly for having a larger screen partly also for having a more advantageous battery. Both come with a silicone case in the box but the Note 9S comes with a film applied so the first point goes to the Note 9S. This Note 9S is a large device and this is due to its 6.67 “screen against a 6.3 “Note 8. There are two IPS displays with Full HD + definition, but they differ in the use of screen-body which ends up being much better on the Note 9S. The look is also different and the 20: 9 on the Note 9S is slightly longer than the 19.5:9 of Note 8. They are protected by Gorilla Glass 5 also at the front and the newer model has HDR10 support which can be used on YouTube or Netflix, for example. In terms of brightness, neither of them excel and they don’t compete with others like Samsung, but the intensity is satisfactory. The Note 8 achieves higher brightness levels but color contrast and fidelity they are better and excellent on the Note 9S – so, for the work as a whole, the point is the Redmi Note 9s. And if we are talking about Xiaomi we are talking about a box without headphones At least both have a P2 connection for you to use whatever you want. In external audio, both are mono devices with sound expected for intermediaries, that is, just good. 

The volume is good, louder on the Note 8 but while it exaggerates the treble the Note 9S pays more attention to the mids and both forget the bass like almost any smartphone – because it has a higher volume, the Note 8 gets the point. Here we have two phones with the MIUI interface, which is practically a new system that Xiaomi designed on top of Android In the case of Note 8, it comes out of the box with MIUI 10 and Android 9 Pie but it already has an update for Android 10 along with MIUI 12. The Note 9S is already out of the box with Android 10, since it is newer, and your MIUI 11 should move to 12 soon, in addition to also having the most likely update for Android 11, so one is more updated now and the other will be more updated in the long run. Although they are from the same company they are two interfaces with differences. MIUI 12 is more like the current iOS whereas in Note 9S we don’t have an app drawer other than its simplest version, the Redmi Note 9. Overall, it is a system that allows a lot of customization, including themes. They have a dark mode, with Game Turbo mode to improve the game, plus a remote control app. The connections are very similar, with Wi-Fi ac Dual-Band and GPS in addition to the infrared. The Bluetooth version of the Note 9S is newer, at 5.0. Strangely, neither of them has NFC, so they end up tied in this regard. If the Redmi Note 9 comes with a MediaTek chipset, the Note 9S is like the Note 8 and has a Qualcomm set – in the newest we have a Snapdragon 720G while the other brings the old acquaintance Snapdragon 665. Both houses 4 GB of RAM and 64 GB of storage, with a version also of 6 GB and 128 GB for the Note 9S. Note 8, for lack of performance optimization, does well in the benchmarks but badly in our app opener tests. The Note 9S goes much better in the benchmarks but is only 5 seconds ahead of its rival in our tests. They are devices that perform well on a daily basis but whose system ends up turning off more apps in the background than they should. In games, Note 8 will run any title without a problem but the Note 9S stands out for being able to run multiple titles at 60 fps being a better choice for gambling, then the point, for almost all reasons, is the Redmi Note 9S. On the battery, we see a good improvement in the number of the Note 9S, which has 5,020 mAh against 4,000 mAh in the Note 8. And as we could already expect, the duration is better in this younger one. in our real-time tests, the Note 9S achieved a great mark of almost 26 hours of use while the Note 8 reached almost 18 hours, which is also a good number. 

Having a large battery, the Note 9S comes with a fast 22.5-watt charger which is good, but it leaves you just 15 minutes under two hours in the making. The Note 8, even with a smaller battery, has a 10-Watt charger that spends 2h15 recharging. It is another point, of course, for the Note 9S. The camera set of these two smartphones is quadruple and very similar, differing in just one camera. On the Redmi Note 9S, we have a 48 MP main wide with f/1.8 aperture and PDAF an 8 MP ultra-wide, a 5 MP macro with autofocus, and a 2 MP depth sensor. The Redmi Note 8 has the same main width of 48 MP with aperture f/ 1.8 and PDAF same 8 MP ultra-wide, 2 MP macro with auto focus and also a 2 MP depth sensor. You saw, only the macro is different, and in the result of this type of capture we have a discrepancy because the Note 9S sensor does a lot better than the Note 8, being one of the best macros that we’ve seen in a mid-range to date, with great details and the advantage of autofocus. In ultra-wide the two do well, even looking like the main camera and bringing a decent amount of detail, contrast without exaggeration, and good dynamic range. In the main camera, the two do well, with good color balance and a high level of detail. However, it is possible to say that the Note 9S does better with less noise and with a better dynamic range. In less light situations both will be miserable. The point of the rear camera is with the Note 9S. In terms of video, the two are only reasonable. They record in 4K, but electronic stabilization or the 60 fps will only appear from Full HD. The Note 9S even allows you to record with the macro and the ultra-wide of the two also stabilizes Full HD. Sound capture is decent on Note 8 and poor on Note 9S, which can also record in super slow motion, so they end up drawing here. And finally, in selfies, the 16 MP on the Note 9S are better than the 13 MP on the Note 8 but the opening of the latter is much better, allowing more light to enter the sensor, but even with that, however, the Note 9S camera proved to be superior. This can be seen in the details of portraits in which the Note 9S presented both day and night much more detail and color balance – cropping in Portrait Mode is good on both but in Note 9S it tends to exaggerate in exposure and contrast.

 Then the front camera ends up giving point to the Note 9S. When we talk about Xiaomi in Brazil, we usually talk about high launch prices. And if the Redmi Note 8 arrived for R$ 1,800, even cheaper than the Note 7, the Note 9S kicked the stick of the tent and arrived here costing R$ 2,800. At the current price we have two cases here: the Note 8, with the current situation, followed other devices and raised the price in more than 50% – it was close to R$ 1000 and now has prices that reach more than R $ 1,500. Note 9S arrived expensive and it’s dropping prices with recent promotions that have already left it less than R$ 200 apart from its rival. Considering the score so far, a good promotion makes the Note 9S cost-effective much better than the Note 8, which was not even loved as the successor to the Redmi Note 7. The two should drop in price in the coming months, but that last point is the Note 9S again. We ended with a devastating score for the Note 9S. As an evolution of Note 8, it did very well and it may not have the best audio, but then it is not below the competitor in anything else. With prices getting better over the months, the Note 9S should become very attractive, but still, it’ll be hard compete with the newly launched Galaxy M31 at the same price So, does the Redmi Note 9S interest you?

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