Labo – Samsung Galaxy Z Fold 4 : zoom sur l’écran recouvrant son capteur pour selfies

4

Samsung claims to have increased the pixel density of the panel that covers the photosensor “under the screen” of its Galaxy Z Fold 4. Before the publication of our test, expand this detail that represents a real technical challenge for the manufacturer.

Samsung Galaxy Z Fold 4

Introductory price €1,799


Samsung Galaxy Z Fold 4

  • The Galaxy Z Flip4 5G, 256GB, from Samsung, graphite, with sound 6.7-inch folding screen slips into your pocket, a Dynamic AMOLED folding interior screen, 120 Hz . You “/>

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    1,169.00

  • discountdiscount

    1,787.19

  • fnac.comfnac.com

    1,799.00

  • baker.combaker.com

    1,799.00

  • darty.comdarty.com

    1,799.00

  • CrossingCrossing

    1,799.00

  • SamsungSamsung

    1,799.00

  • LDLCLDLC

    1,806.90

  • material.netmaterial.net

    1,807.90

  • SFRSFR

    1,809.00

  • The Galaxy Z Flip4 5G, 256GB, from Samsung, graphite, with sound 6.7-inch folding screen slips into your pocket, a Dynamic AMOLED folding interior screen, 120 Hz . You “/>

    UbaldiUbaldi

    1,169.00

  • discountdiscount

    1,787.19

  • fnac.comfnac.com

    1,799.00

  • baker.combaker.com

    1,799.00

  • darty.comdarty.com

    1,799.00

  • CrossingCrossing

    1,799.00

  • SamsungSamsung

    1,799.00

  • LDLCLDLC

    1,806.90

  • material.netmaterial.net

    1,807.90

  • SFRSFR

    1,809.00

  • The Galaxy Z Flip4 5G, 256GB, from Samsung, blue, with sound 6.7-inch folding screen slips into your pocket, a Dynamic AMOLED folding interior screen, 120 Hz . you did it all”/>

    UbaldiUbaldi

    1,169.00

  • discountdiscount

    1,887.19

  • fnac.comfnac.com

    1,919.00

  • baker.combaker.com

    1,919.00

  • darty.comdarty.com

    1,919.00

  • SamsungSamsung

    1,919.00

  • LDLCLDLC

    1,926.90

  • material.netmaterial.net

    1,927.90

  • SFRSFR

    1,929.00

How the pricing table works

Samsung Galaxy Z Fold 3


Samsung Galaxy Z Fold 3
we tried we liked

Note Digital

Editor rating: 4 out of 5

Rating: 3 out of 5

(1)

  • amazon warehouseamazon warehouse

    1,162.69

  • AmazonAmazon

    1,299.00

  • RakutenRakuten

    1,319.00

  • darts marketdarts market

    1,319.99

  • discount marketdiscount market

    1,328.99

  • SFR REDSFR RED

    1,499.00

  • amazon marketplaceamazon marketplace

    1,549.99

  • CrossingCrossing

    1,699.00

  • darty.comdarty.com

    1,799.00

  • SamsungSamsung

    1,799.00

  • Second hand market of Fnac.comSecond hand market of Fnac.com

    1,843.11

How the pricing table works

Samsung inaugurated last year, in its Galaxy Z Fold 3, a feature still rare in smartphones: a photographic module located under the main screen of its folding model. The sensor, displaying 4 megapixels, was covered by the slab, whose pixel density, however, had been reduced to let in enough light for the resulting shots to be usable.

The Samsung Galaxy ZFold 4

The Korean is proceeding in the same way this year, but with a pixel density that promises increased over its photographic module, whose definition remains fixed at 4 megapixels. The idea is, therefore, that it be even more discreet inside the screen of the Galaxy Z Fold 4, lighting up more pixels when in use.

But to these statements, Samsung does not associate any figure. A tour of our laboratory, and now we see it more clearly.

More (new) pixels

The Galaxy Z Fold 4 sports the Amoled “Diamond Pixel” display used last year in the Galaxy Z Fold 3, which displays green, red, and blue sub-pixels of different sizes and arranged diagonally, and which Samsung has been using for almost ten years. years. on your Galaxy S.

Samsung Galaxy Z Fold 3

The Galaxy Z Fold 3 and its photosensor under the screen.

The part that covers its front photographic module adopts another sub-pixel structure. On the Galaxy Z Fold 3, these were arranged as square blocks that included two lines, each with a blue sub-pixel and a red sub-pixel, flanking four green sub-pixels. These pixels were arranged as perpendicular grids, in a 14 x 14 pixel square.

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Samsung Galaxy Z Fold 4 Selfie Camera

The part of the screen that covers the 4-megapixel photo sensor of the Samsung Galaxy Z Fold 4.

©Digital

Change of course in the Galaxy Z Fold 4. Two elements differ. First, the structure of the pixels: this time they have a sub-pixel of each color, leaving the largest green. They are probably smaller, since they fit in a 20 x 20 pixel square, and are mostly staggered. This results in a diagonal alignment that increases their number: while we note the presence of 172 pixels on the screen that covers the photographic module of the Galaxy Z Fold 3, there are 308 above the Galaxy Z Fold 4.



Samsung Galaxy Z Fold 4


Samsung Galaxy Z Fold 3

It should also be noted that this new arrangement of pixels allows Samsung to offer a slightly more inconspicuous area of ​​the screen, since the “grid” effect visible last year is less, and also offers smoother contours: this space is already it is not a square with beveled edges, but a circle. And since the pixels have to be spaced apart to let light through, the demarcation isn’t invisible yet…

Photos affected by this new part of the screen?

With a higher pixel density and probably less light to collect, are the images taken by the Galaxy Z Fold 4’s camera of lower quality? Remember here that Samsung does not consider this module as a full-fledged camera, but as a sensor that allows occasional video conferences; the 10-megapixel photo module hidden in a punch on its front screen is much more suitable for selfies. However, to find out what it is, we have made some indicative images in our laboratory. Those of the Galaxy Z Fold 3 were made at the same time, with an updated smartphone.



  • Samsung Galaxy Z Fold 4 – daytime photo | ©Digital

4 photos

Nice surprise: if the sharpness is too low for these photos to be truly usable as they are, it’s clear that the Galaxy Z Fold 4’s shots are better exposed than those of its predecessor and a bit more detailed. The software processing applied by Samsung, compensating for a lower light supply, is certainly there in large part. In short, the “under-screen photo module” technology, although it still looks like a gadget, gains in discretion and gradually improves its photographic results, which are already good.

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