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Operating system
Android 12
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Screen size
7.6 in
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Processor frequency
3.19 GHz
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$459.00
Best price -
$564.99
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$566.00
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Our opinion
Samsung continues its high-end tradition of folding phones with the Z Fold 4, which in turn perfects the Korean manufacturer's recipe.
It's a real improvement, since there are few differences from version 3, with the dimensions of the outer screen (6.2") and inner screen (7.6") remaining identical. However, there are a few small details, such as a very slight reduction in weight, a slightly thinner hinge and more resistant protective glass for the screens. The best point remains the water resistance (so beware of dust) with Ipx8 certification, even if you have to be careful with a folding smartphone about gaps and folds.
It's important to distinguish between the inner screen and the front. For the inner screen, the definition remains close to that of the Z Fold 3, and reaches 1812 by 2176 pixels, for a resolution fine enough for reading use. As always with Samsung, there's nothing to complain about in terms of the panel's characteristics, with its beautiful colors that will just have to be tempered in the settings for better fidelity. As for the rest, brightness is perfect, the adaptive refresh rate is a real pleasure and reflections are a thing of the past. There's nothing to fault about the exterior panel either: a quick turn in the settings and the colors are faithful, and as for the rest, brightness, contrast and definition make for an excellent display.
As for the processor, Samsung has used a very recent chip, which does an excellent job for classic smartphone multi-tasking, switching from one application to another without a hitch. The real progress lies in the gaming experience, which is much smoother, even if there is a slight drop in performance when the smartphone heats up.
For this smartphone, Samsung has opted for a combination of three complementary photo sensors, different from version 3 of the Z Fold and more similar to those found on the Korean brand's "classic" top-of-the-range models. The main sensor, with a combined 50 million pixels, takes images by default with 12 million pixels. While colors are vivid and details well rendered, the result lacks a touch of sharpness, but remains flattering and doesn't deteriorate too much in the dark, with a little marked smoothing. The 50-megapixel mode doesn't offer much, except for possible cropping. The ultra-wide-angle module does its best to limit image noise, at the cost of a little pronounced smoothing and a slight lack of sharpness, although colors are well respected. For the telephoto module, Samsung has opted for a lower sensor resolution on this Z Fold 4, and this comes at the price of a lower quality of sharpness, but this does not prevent shots from enjoying vivid colors and well-marked details. For self-portraits, there's a choice between the mediocre sensor inside the smartphone, and the good sensor outside with its 10 million pixels, but as the phone lends itself to this, you might as well use the main module and make use of the cover screen for optimum quality. Video capture is possible up to 8K, at the cost of very large files, but optical stabilization requires Full HD resolution, which is often sufficient.
Autonomy will largely depend on whether the screens are used indoors or outdoors. Overall, the figures obtained are just within the norm, i.e. around one day before needing to recharge, for which no charger is supplied.
Review of the Samsung Galaxy Z Fold4 done by Julien Hany the 2023/05/25
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Key points
Capacity
4400 mAh
Video resolution
1080 p
Photo resolution
50 MP
Thickness
6.3 in
Screen size
7.6 in
Processor frequency
3.19 GHz
Rugged
Yes
CDMA
Yes
Barometer
Yes
Qi wireless charging
Yes
Internal storage (Version 512GB 12GB RAM, Dual Sim)
512 GB
RAM
12288 MB
Weak points
SAR
1.301 W/kg
Weight
263 oz
Removable storage
No
Audio
No
