Test Oppo Reno Z: a balanced smartphone in the face of tough competition

Presentation

Petit little by little, Oppo moved to France. Arrived last summer with the expensive Find X, the Chinese giant takes his time and distils smartphones. This summer, the world's number 5 launches the Reno Z, the Reno's little brother and lighter version that retains some of the brand's flagship technologies, such as the quick charge and the fingerprint sensor under the screen. All this for €349. At that price, it faces theMi 9T from Xiaomi, thePixel 3ade from Google, but also theView 20 from Huawei.

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Oppo Reno Z and its 6.4 inch slab.

Ergonomics and design

Oppo has accustomed us to quality finishes and Reno Z is no exception. Its plastic back shows a blue to purple gradation that is rather aesthetic while the small ball protecting the photo module from rubbing (by raising it) is back. The 6.4-inch slab, with its discreet teardrop notch, occupies 85.7% of the façade. No retractable photo module here, as the technology is still reserved for the original Reno.

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plastic back of the Oppo Reno Z.

In in terms of handling, this Reno Z is convincing. The side buttons fall naturally under the finger, whether you are left- or right-handed. The fingerprint sensor under the display is rather responsive and fast. However, this beautiful picture is spoiled by the lack of waterproofness and microSD port. You'll have to make do with the 128 GB of internal memory, 18 GB of which are used by the operating system.

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La good handling of the Oppo Reno Z.

Audio

Sur At its lower edge, the Reno Z houses a 3.5 mm mini-jack connector that shows great performance. Distortion is minimal, crosstalk is well contained, and the dynamic range is wide. Unfortunately, the plug lacks power and that is its only defect. It is thus exposed to be eaten by headphones that are a bit energy consuming. The loudspeaker, on the other hand, is medium, with a powerful but saturated sound.

Screen

For his Reno Z, Oppo offers us a quality slab, flirting with the five stars. It is successful enough to allow us to watch videos in very good conditions. Oled and displaying in 2,340 x 1,080 px for a resolution of 403 dpi, the screen has a diagonal of 6.4 inches, more than the Galaxy Note 10 so, with a notch like a water drop. It proves to be quite well calibrated, but as often, it is necessary to make a check mark by the parameters in order to make the most of the slate. The best being to go to the screen settings and "warm up" the colorimetry to the maximum.

Par At this little trick, the slate displays an exemplary color temperature (6,799 K), not very far from the expected value of the video standard (6,500 K). The delta E is also rather good, since it is measured at 3.9. These values show that the color reproduction is quite good, but not perfect. Thanks to the Oled, the contrast ratio is almost infinite, ensuring deep blacks in the image. Thanks to an honest reflectance (50.2%) and a good maximum brightness (437 cd/m²), the Reno Z screen manages to remain readable even in direct sunlight. Conversely, the tile is unobtrusive in the dark, with a well-contained minimum brightness (2.1 cd/m²). Finally, the tactile delay of the slab is average (75 ms).

Performances

Épaulé with 4 GB of RAM, the Reno Z features Mediatek's Helio P90 chip. If it is sufficient to run Android in a fluid way and allows to juggle between the different applications without too many problems, it ensures quite correct performances. In our multitasking performance test (memory + CPU), it came out with a score of 93.5. A score quite close to that of OnePlus 7 Pro, the best smartphone with this protocol.

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Reno Z after filming for 10 minutes in FHD.

C It's when you're about to launch a game that things get complicated. In this field, the PowerVR GM9446 chip is much less efficient. It thus achieves one of the worst scores (25.05), bringing it closer to an entry-levelRedmi 7A (23.74) than theMi 9T (73.49), which is sold at the same price.

Photo

Du Beside the photo, the Reno Z carries the same equipment as its big brother the Reno premier. On the back is a Sony IMX 586 sensor delivering 48 Mpx shots. It is supported by a secondary module of 5 Mpx dedicated to depth and portrait mode. No wide-angle or 10x zoom here. At the front, it is a module composed of a 32 Mpx sensor that operates as a selfie machine.

Module main: 48 Mpx, 27 mm, f/1.7

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By day, the Reno Z shows rather good results in pictures. The details are there as well as the contrasts, while the smoothing remains contained. Unfortunately, it still doesn't do as well as Pixel 3a. This is due to a loss of detail in the periphery and a slightly yellowed rendering that spoils the colors.

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Et as always, it's at night that things get complicated. While Reno Z manages to provide a legible scene, it fails to reproduce colors and details. The latter tend to fade away behind an overly present smoothness.

Mode portrait, front sensor and vidéo

À In the front, the 32 MP sensor produces good quality images. Its backlight management is rather good, while image processing can be reduced to a minimum. So it's up to you to choose how much you want to be embellished by the photo application. The portrait mode is also interesting, with a fairly good artificial bokeh. The cutout on curly hair is a bit random, but it remains consistent overall.finally, on the video side, the smartphone is able to run in 4K.

Autonomy

Reno Z comes with a 4,035 mAh battery. Combined with a Helio P90 chip, it forms a rather convincing combo. On our SmartViser autonomy test, simulating normal smartphone use, the terminal lasted 18 h 05 min. A five-star score, corresponding to 2 and a half days of real use. Comfortable. However, this is less than what the direct competition has to offer.

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Il takes just over two hours to recharge the Reno Z with the fourn

block.