Review of the smartphone Vivo Y91 (Mediatek)

It is too early to talk about the popularity of Vivo in Russia, but many people know the company VVK, which produces various kinds of equipment. What is the connection here? It's simple: Vivo is a subsidiary of VVK, just like the other two more mainstream brands (OnePlus and Oppo).

Vivo did not make it to conquer the Western market, but they gained steady popularity in the Middle Kingdom and are already in the rankings (in the top five) of the largest suppliers of smart phones in the world.

In 2018, Vivo successfully participated as a sponsor in the Russian Football Championship, thereby making a profitable advertisement for themselves.

Vivo does not strive for superiority in sales of its smartphones in the market, but maintains its originality and quality. Most of all, the devices of this manufacturer will impress lovers of photography.

All smartphones of the manufacturer are divided into several lines:

• X - these are expensive devices with flagship "minced meat" inside;
• V - the average level with good equipment inside, but with prices noticeably lower relative to the premium X representatives;
• Y - budget segment with affordable prices and good quality.

In January 2019, a new brainchild from Vivo appeared, labeled as a budget device with the name Vivo Y91.

Design and specifications of the smartphone

The appearance of the device has nothing outstanding. This is a typical budget phone, fully consistent with the traditions of its manufacturer.

A comfortable size of 155.1 * 75.1 * 8.3 mm and a harmonious weight ratio of 163.5 g will allow the user to easily use the device for any purpose: from talking to flying in the online space. This size is convenient as a camera for those who like to capture everything around them.

The case is made of high-quality plastic with original gradient colors, which are available in two colors: Starry Black and Ocean Blue.Shades smoothly pass from top to bottom, changing from dark to light. I am very pleased with the brightness and unusualness, Vivo's characteristic departure from the classics attracts buyers.

The front bezels are very thin, so the front panel is entirely screen. A drop-shaped notch at the top is a place for the front camera and related sensors.

The back panel is just the main carrier of color. The upper left corner on the “back” is a legitimate and already traditional place for a dual main camera with flash. In the center is a fingerprint scanner.

The right side - on / off and volume, the left - slots for mini-SIMs and flash drives for additional memory.

In general, the appearance of the smartphone has nothing outstanding, everything corresponds to the budget line.

• Comfortable dimensions and weight;
• Thin frames that do not create discomfort in use;
• Original gradient coloring of unusual shades

• Plastic case;
• The choice of colors could be wider.

Display description

Standard IPS LCD capacitive touch screen with a wide range of color recognition (16 million). The diagonal is 6.22 inches. Based on the size of the device, the display occupies approximately 82.9% of the entire area of ​​the front panel.

Quite acceptable pixel resolution is 720 x 1520, density is about 270 ppi. The aspect ratio of the screen 19 to 9 is in harmony with other indicators of properties.

All parameters indicate that using a smartphone will not cause much eye strain. The color display is uniform over the entire plane without distortion in the corners.The graininess of the picture is not clearly visualized, that is, if you do not find fault, then the Vivo Y91 screen can be considered quite satisfactory and meets all the requirements of budget standards.

• The diagonal has a comfortable operation;
• Pixel resolution and aspect ratio does not bother the eyesight;
• No distortion of the picture at the corners of the screen;
• Perfectly recognizes colors and shades.

• The image may be affected by direct sunlight.

Device Platform and Memory Capabilities

The manufacturer took care of the quality upgrade of its budget line and equipped the Vivo Y91 smartphone with a new control platform from MediaTek - MediaTek Helio P22, which is highly characterized by energy efficiency and performance. It also enables HD+ resolution with an acceptable aspect ratio, striking a balance between sharpness and power efficiency. Here, the successful connection of the IMG PowerVR GE8320 processor responsible for the graphics and the powerful eight-core ARM Cortex-A53 processor works. The standout feature of this chipset is its intelligent capabilities (AI): a well-chosen set of tools enables the use of features such as face recognition, photo bokeh effects, smart album creation and much more.

Another MediaTek CorePilot technology provides planned power consumption, temperature management and UX monitoring, evenly distributing to the cores and selecting a harmonious frequency and voltage. At the same time, the performance of the device is fully consistent with the energy consumption, which creates additional comfort for the user.

Memory

The operating memory of the smartphone is 3 GB, which is more than enough for the processors used by the manufacturer. A sufficient amount of operating system also guarantees the speed of the device without freezing and braking.

Built-in memory (64 GB) is enough for both work and various entertainment applications, but, if necessary, the disadvantage can be filled with a memory card, which can be up to 256 GB.

• The used platform allows you to expand the capabilities of a budget segment smartphone;
• The "collaboration" of the IMG PowerVR GE8320 and ARM Cortex-A53 processors ensures image quality, complete with economical consumption of the device's energy resources;
• Expanded and updated AI (artificial intelligence) capabilities;
• An acceptable amount of RAM and internal memory, allowing the smartphone to maintain high performance when performing the necessary operations;
• Expanding the internal memory up to 256 GB ensures that the phone can be used for any purpose (work, entertainment, etc.)

• Due to the impossibility of a full test, no cons were found.

Vivo Y91 Camera Parameters and Capabilities

The device has in its arsenal a single 8 MP front camera and a dual rear camera with 13 MP, f/2.2, PDAF and 2 MP, f/2.4 parameters. The selfie camera is traditionally located at the top of the front panel in a rather neat teardrop-shaped notch. The main dual camera is located on the back panel in the upper left corner, a bright LED flash is slightly below it.

Thanks to the high-quality filling of MediaTek Helio P22, the smartphone has acquired updated photo and video capabilities. The MediaTek Imagiq package in the MediaTek Helio P22 supports the new hardware depth engine.MediaTek's Electronic Image Stabilization System (EIS) is enhanced with a new Roll Shutter Compensation (RSC) mechanism that combines, successfully softens distorted ("jelly") video when capturing fast action or panning.

The cameras feature incredible low-light performance, multi-frame noise reduction, and sharp image magnification technology. In addition, MediaTek's Imagiq capture package includes enhancements that automatically minimize aliasing, graininess, and provide methods for correcting defects or distortion.

Focusing is lightning fast and does not require any effort from the user. Macro shots are almost professional quality.

The intellectual abilities of the cameras have gained certain improvements and improvements. This applies to face recognition (Face Unlock), the function of "smart photo albums", bokeh for the main and front cameras, and much more.

Through the use of these technologies, the MediaTek Helio P22 chipset enables cameras to capture even the smallest details, create breathtaking effects, both in photography and in video, at any time of the day, when the user wants it.

• MediaTek Helio P22 has expanded the photo and video shooting capabilities of a smartphone;
• Photo and video quality close to professional due to additional focusing, stabilization and image debugging capabilities;
• It doesn't matter what time of day it is, because sensors and flashes do a great job of automatically adjusting for too little or too much light when shooting;
• Enhanced and enhanced camera intelligence.

• Not identified.

Battery and battery life of the device

The smartphone battery is non-removable Li-Po with a capacity of 4030 mAh. Given the energy-saving features of the platform used in the device, a full battery charge will last for 8-9 hours of uninterrupted operation in active mode. Video views are about 11-12 hours of autonomous use, audio files - up to 50 hours.

• High level energy density;
• Self-discharge is minimal;
• Compact battery that does not increase the size of the smartphone;
• Temperature endurance (-20+40).

• Fire hazard if the battery is overcharged or overheated;
• To extend the "life" of the battery, you must adhere to a certain scheme for charging.

Based on the consideration of the parameters and characteristics of the new smartphone Vivo Y91 (Mediatek), we can draw confident conclusions: the device fully complies with the norms and requirements of the budget line, in some parameters (camera capabilities, video and photo quality) there are enhanced features typical for more expensive smartphones. The predicted cost in the range of $155-200 will be fully justified.