I then compare these values with other measurements from other phones. I do not yet have enough measurements to tell if a phone is good or not, but these first numbers can already give an indication. To measure network performance, I collect the signal strength in dBm of each cell during my travels. All measurements are performed under the same conditions to be able to compare results across multiple phones. The strength of the signal obtained by a telephone gives an indication of its ability to receive the network well.

The final result gives you an unscientific indication of the reception quality of each phone. These results could be different on another network or under different conditions. To fully understand the signal value, a signal of dBm indicates average reception while a signal of dBm indicates a very good signal. Umidigi F1 Average signal : We see here that on average the Redmi Note 7 is worse than the other devices measured but this result must be weighted because I have performed much more measurements on this phone than the others and I have therefore potentially visited cells with a worse coverage.

To avoid this problem, I compared the results with the Redmi Note 5 with only the cells that both phones visited: The phone with the best reception is the one outside the graph. We can therefore see that the Redmi Note 5 In use I did not notice any problems but the figures are the figures, the Redmi Note 7 seems less good than its predecessor in terms of network capture. Download performance With Xiaomi I was used to getting amazing scores in terms of download speed, unfortunately this is not the case with Redmi Note 7 because in download I got about 80 Mbps and about half in upload.

These scores are not bad, they are just below what I usually get.

After some tests near the router and remotely, I measured a good download speed around Mbps with an upload speed limited by my provider around Mbps. These values are quite similar to what I have tested on other phones, they are almost identical to what I get with the Mi 8 Lite. This battery should allow you to last two to three days in normal use, I find the same autonomy as on the Redmi Note 5. The battery also supports 18W fast charging but the charger supplied with the phone does not support fast charging, so you will need to purchase an additional charger.

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For my type of use where I use a lot of data at least 2 hours a day , I can keep two days without having to recharge my device. This kind of performance is becoming quite common in this smartphone segment. On call I have not noticed any problems with the audio quality, the difference with Note 5 is mainly due to the size of the speaker for listening.

The opening of Note 5 is wider and the sound that comes out of it is therefore less muffled. It is a matter of habit to find the right ear position because the speaker of Note 7 is thinner and higher on the screen. Headphone output To test the sound quality at the phone's output, I use a test sound that scans all available frequencies. I play this sound on a reference device my PC and then I play the same sound on the phone and then measure it according to objective criteria rather than based on subjective listening. The Redmi Note 7 has a powerful sound with an average of more than 90 dBA, it ranks above the average in terms of sound power.

However, it is slightly lower than the Redmi Note 5 and the difference with the Mi 8 Lite is greater, the latter is one of the most powerful devices in this price range. The dynamic range of the Redmi Note 7 is slightly lower than that of the Redmi Note 5 and Mi 8 Lite but the difference is small. In terms of frequency coverage, Redmi Note 7 and Redmi Note 5 offer good overall performance with little deviation from the standard on most frequencies. The Mi 8 Lite, on the other hand, loses ground in high frequencies.

You can therefore use the Redmi Note 7 to connect it to your audio system or car without any problems. The Redmi Note 7 is equipped with a Qualcomm Snapdragon processor and an Adreno graphics chipset where Note 5 offered a Snapdragon and an Adreno The performance gain is quite appreciable because we go from an Antutu score of about with Note 5 to with Note 7. The Redmi Note 7 shares the same configuration as the Xiaomi Mi 8 Lite, the performance is about the same. At the CPU level, the Honor 8x does a little better but it is much more expensive.

The Redmi Note 7 offers a level of gaming performance similar to the Xiaomi Mi 8 Lite because it uses the same graphics processor. The Redmi Note 7 is equipped with a dual Samsung sensor on the back capable of producing 48Mio pixel photos. Sony and Samsung are competing with each other through several smartphone brands and they released a 48 Mio pixels sensor at the same time.

Photo application The default photo application is the one found on other Xiaomis using the same version of Android. The photo part offers the following modes: photo, portrait, night, square, panorama and pro. In photo mode, the camera will take 12 Mio pixels pictures and you cannot change this value. If you want to use the 48 Mio pixels, you must use the pro mode and activate it manually.

The settings of the photo application are the same as for the other Xiaomis, the AI is also present to try to improve your photos. The goal is not to show that the reflex is better than the smartphone, I just wanted to highlight the differences, especially in terms of colors. So here is the reference image. And now here is the picture taken by Redmi Note 7 in automatic mode:. On the other hand, the first thing that strikes without looking at the details is the colour temperature.

The SLR makes no choice, it takes what it sees while the smartphone has changed the white balance to provide a warmer image. The grey background takes a slightly brownish hue. The rest of the colors are slightly more saturated than with the reflex, the green takes a different coloring.

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The sensor does a good job in terms of detail and depth of field. In the focusing area, the details are very sharp, you can easily see all the dust.

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With the manual mode, it is possible to modify the white balance but unfortunately the choices are predefined and you cannot choose the color temperature yourself. This option is available on the Mi 8 Lite but not on the Redmi note 7. Here is the same picture in manual mode and a colder color balance: The background is now more grey and the whole picture is closer to reality, the green remains a little behind.

This first test shows that the camera makes choices that are not always appropriate in terms of color, but as I often say, a studio test is not enough to get an idea of the quality of a camera. Outdoor photography sun I received my Redmi Note 7 a day before going on holiday in Stockholm, so I took the opportunity to test the photo part on a more attractive setting than what I see every day.

The weather was absolutely splendid with a cloudless blue sky. First photo on arrival on the tarmac of Bromma airport in the late afternoon I took this picture in automatic mode without changing the basic settings, the AI was activated.

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We see that the colours are quite strongly saturated, the yellows and blues are reinforced by the default software treatment. Overall the picture is pleasant to look at, the level of detail is good and the noise is non-existent. Second example where I mix sky, shadow and reflection. This time I compared the picture to a very similar picture taken with my Canon. If we only look at the image on the right, we could say that it is ok and that is partially true.

The level of detail is really good, you can see the details of the branches very well. The contrast between shadows and light is also good, the dynamics are good. Only the color of the sky does not seem very natural. If we compare this photo with the one on the left it is even more striking, we find here again a too pronounced saturation and the color of the sky has taken an unrealistic coloring. Here is a third example where the set is clearer and easier to capture for a camera. As for the two previous examples, the picture is generally ok but if we pay a little attention to the colors, I have again this feeling that something is wrong, the blue is much too present and the main building which is actually a little more orange is displayed in a lighter color.

At that point, I had not yet understood why these photos were so out of touch with reality, but I finally understood that it was a voluntary choice of the so-called AI artificial intelligence of the camera. This AI takes artistic liberties with photos and this does not always lead to the right choice.

As a result, I decided to deactivate the AI and never activate it again. Fourth example, without AI this time. The camera allows you to change the sharpness, saturation or contrast but I left everything in the default settings.

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You can always modify these values according to your tastes, I have not yet found this freedom on other brands for the moment. Outdoor photography night Night photography is the biggest weakness of cameras smartphone or regular camera. The most common problem is digital noise, which appears more or less quickly depending on the device. The Redmi Note 5 impressed me with its ability to take pictures of acceptable quality without special assistance. The noise was acceptable and it was possible to take pictures without a tripod. During my time in Stockholm, I took the opportunity to take many night shots and test what the Redmi Note 7 can offer in these conditions.

I took these pictures at intervals of a few seconds and without a tripod. I took the same picture with the different color balance configurations offered by the camera. I set the sensitivity to ISO I read everywhere that noise is a real problem for smartphones, but sometimes I really wonder why. Noise is especially a problem if you want to display the photo on a large screen or if you want to print it.

If you want to avoid noise, there is a very simple solution, just lower the ISOs and find a stable support to take the picture. Second example to demonstrate that Redmi Note 7 can take night shots without noise. I used the manual mode to force the camera to take a picture at ISO No noise at all! So yes, the photo is not taken in total darkness but the result is still really good. The difference is very visible and the result is quite good actually.

The camera reconstructs a picture from several shots as for HDR and this makes it possible to restore colors that had disappeared due to overexposure.