vivo X51 5G
Processor and memory
CPU: Qualcomm Snapdragon 765G
GPU: Adreno 620
RAM: 8GB (LPDDR4x)
Internal memory: 256GB (UFS2.1)
Memory extension: no
Display diagonal: 6.56 inches
Display resolution: 2376 × 1080 pixels
Display frequency: 90 Hz
Display Type: AMOLED
Screen Protector: Unknown
Multitouch: 10 fingers
Main camera: 48 MP Sony IMX598 (f / 1.6 aperture)
Ultra wide angle + macro: 8 MP Hynix HI-846 (120 ° ultra wide angle lens and f / 2.2 aperture)
Telecamera: 8MP Omnivision OV08A10 (f / 3.4 aperture, 5x optical - 60x digital)
Portrait camera: 8MP Samsung S5K3L6 (f / 2.46 aperture)
Front camera: 32 MP Samsung S5KGD1 (f / 2.45 aperture)
Dual SIM: Yes
SIM size: Nano SIM
GSM: 850 / 900 / 1800 / 1900 MHz
FDD LTE: B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B32/B66
TDD LTE: B38 / B39 / B40 / B41
WiFi: 802.11 a / b / g / n / ac
* Ambient light sensor
* Proximity Sensor
* Hall sensor
* Fingerprint Sensor
Battery: 4.315 mAh
Fast charge function: 33 Watt
Qi store: no
Operating system: Android 11 (FuntouchOS 11)
Audio: AK4377A Hi-Fi
Size: 158,46 × 72,80 × 8,04 mm
1x SIM needle
1x Type-C adapter
1x charging cable
1x charger (33 watts)
1x protective cover
1x user manual
Review: vivo X51 5G
The vivo X51 5G is the first smartphone that vivo brought to market in Europe. Although very few people know about the company in this country, it competes in other markets, especially in Asia, with big names such as Huawei, Xiaomi or OPPO.
Innovation plays an important role in vivo. The vivo X2012, the first smartphone with a hi-fi audio chip, appeared in 1. Two years later, the vivo X5Max followed, the thinnest smartphone on the market to date. The vivo NEX followed in 2018, the first smartphone with an in-display fingerprint scanner. With the vivo X51 5G, the company wants to set a new milestone and thus also win over European customers.
Gimbal camera system
Most of you are probably interested in the recording quality of the 48 MP main camera (Sony IMX598). After all, this is the focus of the vivo X51 5G. The decisive factor here is the special image stabilization technology in the form of a gimbal camera system, which declares war on shaky recordings and ensures particularly smooth videos. But even those who like to take pictures should get their money's worth, because the gimbal camera wants to score especially in the dark, where higher exposure times are necessary and the smallest movements lead to blurry images.
In contrast to the usual optical image stabilization (OIS), as known from most flagship smartphones, the stabilization module of the vivo X51 is based on a professional 3-axis gimbal. Camera pans, inclinations and tilting movements are compensated electromagnetically. The gimbal camera system is rounded off by AI support, which ensures more image and video sharpness even with fast movements. Special recording modes, such as Super Night Mode or Supermoon Mode, benefit from this new stabilization technology and ensure more variety when taking photos.
In addition to the main camera, the vivo X51 5G has three more cameras installed on the rear. A 13 megapixel portrait camera with 50mm focal length and optical 2x zoom ensures perfect depth of field. An 8 megapixel sensor with a 120 ° wide angle is able to capture a particularly large image area. At the same time, the sensor shares a macro function with a short 2.5cm recording distance. The fourth camera in the group has a resolution of 8 megapixels and enables an optical 5x zoom. Digitally even a 60x magnification (60x hyper zoom) is possible. The front camera has a resolution of 32 megapixels.
On a short photo tour, the vivo X51 5G accompanied me day and night through beautiful Saarbrücken. Here are the recordings:
Day / twilight
In terms of recording quality, the vivo X51 5G can keep up with other upper-class smartphones. The 48 megapixel main camera (Sony IMX598) delivers detailed images with crisp image sharpness right down to the edges of the image. Colors are displayed realistically and the dynamic range is pleasantly large. The camera AI recognizes different scenes precisely, even if the additional color adjustment does not suit everyone's taste. However, the AI scenario detection can be switched off in the settings of the camera app.
Night (left "normal" / right night mode)
The main camera delivers convincing results even in poor lighting conditions. Colors and image sharpness are retained and the image noise is low. The gimbal camera system, which effectively compensates for wobbles during longer exposure times, makes a major contribution to this. In night mode, the recording time can be up to 8 seconds.
The telescope camera of the vivo X51 5G enables 5x optical and 60x hybrid zoom. Compared to the main camera, the color of the images is a bit weaker, the dynamic range is also smaller and the image blurring decreases slightly towards the edges of the image. Details are captured very well up to 5x magnification. Usable zoom recordings can be made even with a 10x magnification. After that, details and sharpness decrease increasingly. With a steady hand and good lighting conditions, the 60x zoom can also provide surprises.
Super macro mode
The vivo X51 5G has earned the name “Super Macro”. The 8 MP sensor, shared by the macro and ultra wide-angle camera, is pleasantly sharp up to a short distance of 2.5 cm. Details and fine structures are very easy to see.
You can find all pictures in full resolution in our Dropbox (Link).
The vivo X51 5G records videos in a maximum of 4K at 30 frames per second. Just like the image quality, the video quality is also impressive, with strong colors and decent reproduction of details. Zooming is possible in video mode with a maximum of 10x magnification. A change to the ultra-wide-angle camera succeeds smoothly while the recording is in progress.
There are also special camera and film filters that can be activated before the recording is in progress. There is a separate cinematography mode with automatic object focusing for cinematic film recordings. Beauty filters are also available in video mode. You can take a look at the video quality in the following video.
The recordings are really smooth if you also activate the "Super Shake Protection". However, the resolution is then also reduced to 1080p at 60 frames per second. With a steady hand, however, it can also be filmed in 4K without any problems and purely via the gimbal stabilization.
The recording quality of the 32 MP front camera is also impressive. This convinces in terms of level of detail, color rendering and dynamic range. Numerous filters, scenes and effects (AI stickers, color filters, portrait lighting, etc.) enable varied selfies. The beauty filter, which corrects more than 15 parts of the face, is particularly extensive. It is up to the user to decide how much each area of the face is corrected.
In portrait mode, people are cut cleanly. The degree of fuzziness is pleasantly subtle, but you cannot determine it yourself.
If you want to record a video with the front camera, the maximum resolution is 1080p. In addition to the beauty filter, which corrects the areas of the face, there is also a body shape filter, which attacks shoulders, waist and legs, among other things.
Vivo calls the display "3D Curved Ultra O Screen". This is a 6.56 inch E3 Samsung AMOLED panel with 90 Hz refresh rate and 180 Hz sampling rate. The FHD + resolution specified by vivo corresponds to a high-resolution 2376 x 1080 pixels. According to the AMOLED display type, the representation is particularly colorful, with an almost infinite contrast. The maximum display brightness is sufficient to be able to read the display easily outdoors. Another advantage is the adaptive refresh rate, which automatically adapts to the content and ensures a visibly smoother display, but at the same time does not become a power hog.
The settings relating to the display are extensive. Among other things, there is a dark mode and adjustment options for color, color temperature and refresh rate. The date, time and notifications can be conveniently displayed on the always-on display without significantly reducing battery life. Themes ensure more variety. An in-display fingerprint sensor is hidden under the display to safely unlock the smartphone. This unlocks the smartphone reliably and quickly.
Thanks to the support of HDR10 +, the vivo X51 5G is also suitable for replaying HDR content. HDR10 + expands the contrast ratio and the color space, which in turn ensures a more realistic and natural picture. In addition, the Widevine L1 smartphone is certified so that content from streaming providers such as Netflix, Disney Plus or Prime Video can be played in full resolution.
The system-on-chip is the ARMv8-based Qualcomm Snapdragon 7G manufactured using the 765 nm process. In terms of performance, the SoC “only” ranks in the upper mid-range range, but the Snapdragon 765G is definitely not a bottleneck. The smartphone performs well in everyday life and the 8-core CPU can even handle computationally intensive tasks. A performance cluster, consisting of two Cortex-A76 cores, takes on particularly demanding tasks. Six economical Cortex-A55 cores form an energy-saving cluster that takes on undemanding tasks.
Belonging to the Qualcomm Gaming series, the SoC's Adreno 620 GPU offers enough performance even in current mobile games. The system is rounded off by an 8GB LPDDR4X main memory and a 256GB UFS2.1 data memory. Unfortunately, the smartphone only supports USB 2.0. This means that data transfers via USB are not quite as quick as with the faster USB 3.x standard.
When it comes to the operating system, vivo relies on the in-house FuntouchOS, which has now been updated to version 11. FuntouchOS 11 is based on Android 11 and is a tidy user interface that is largely based on stock Android. Vivo has avoided a flood of third-party apps.
The smartphone has already received a few system-improving updates in the past few months. Most recently, the status of the security patch was updated to March 2021. To what extent the vivo X51 5G will receive an update to Android 12 is not yet known. Assuming a common 2 year update policy, the vivo X51 5G would be a candidate for Android 12!
FuntouchOS 11 - New functions
With the update to FuntouchOS 11, vivo not only rolled out a version update to Android 11, but also revised and expanded the user interface of the vivo X51 5G. The following new features are included in the update (PD2005F_EX_A_36.7.11):
- Always-on-Display: The AoD has been improved and expanded with new designs. The user has more options to adapt the AoD to their own needs.
- Albums: Photos are even easier to manage. Intelligent algorithms help to sort photos according to location, time, event and other factors.
- iManager: Optimizes disk space cleanup, malware threat detection, traffic management, and app notifications.
- Ultra Game Mode: Increases game performance. Also includes a picture-in-picture mode for apps.
- Data protection: Optimization of the control over memory access. The "Always allow" option for location queries has been removed from the authorization request.
- System: A notification history has been added. Advanced control over media playback.
The vivo X51 5G also cuts a good figure in mobile communications. The connection in the 4G and 5G cellular network is stable and does not show any abnormalities. The 4G (1/3/7/8/20/28/32) and 5G (n1 / n28 / n77 / n78) bands common in Germany are all supported. However, there is no area-wide mmWave. For the 5G speed test, we were connected to the Vodafone network, where we were able to measure data rates of 454 Mbit / s down and 28 Mbit / s up.
Wireless connections to WLAN (dual AC) and via Bluetooth (5.1) also impress with their high connection stability and range. Looking ahead, the vivo X51 5G is unfortunately not WiFi 6 (802.11ax) compatible. NFC is available. Mobile payment via Google Pay works without any problems.
When navigating (GPS, Beidou, GLONASS and Galileo), the smartphone provides precise position data and shows the way accurately. The playback via the mono loudspeaker is understandable, clear and at high volume. The HiRes certified AK4377A audio chip processes high-resolution audio formats.
The battery has a capacity of 4.315 mAh and 1 to 2 1/2 days of running time can be tickled out of one charge. However, the runtime depends heavily on individual usage. Anyone who makes a call here and there, receives WhatsApp messages and surfs the web can easily reach 2 days and more. With always-on display and average use, I was able to tease out exactly 1 1/2 days of running time.
The 33 watt FlashCharge 2.0 fast charging function charges the battery to a good 30 percent in just 57 minutes and to 60 percent in 100 minutes. The prerequisite is a suitable quick charger, which vivo kindly included in the scope of delivery. Wireless charging is unfortunately not an option.