Review UMIDIGI S2: Bezel-Less Phone with 6-inch Display, Big Battery and Dual...

Review UMIDIGI S2: Bezel-Less Phone with 6-inch Display, Big Battery and Dual Camera

Review UMIDIGI S2: Bezel-Less Phone with 6-inch Display, Big Battery and Dual Camera

Following the new trend bezel-less design, many smartphone manufacturers do not pay enough attention to battery life of their devices. Perhaps with the release of UMIDIGI S2, the situation will change.

UMIDIGI presented 6-inch smartphone, with a minimal bezels and a capacious battery of 5100 mAh. In addition, the smartphone supports quick charging via USB-C. It is equipped with a dual main camera, a fast fingerprint scanner, a fairly efficient chipset and quite large amounts of memory.

UMIDIGI S2: Packaging

The smartphone comes in a rectangular, strong, black package that opens like a notepad. The smartphone is additionally placed in individual small boxes of cardboard, which are evenly folded inside the main package.


Contents of delivery:

  • USB-C cable;
  • Power Supply;
  • adapter for connecting 3.5 mm standard headphones;
  • protective case on the back panel;
  • protective film on the screen;
  • tool for removing the SIM tray;
  • User’s manual in English.

UMIDIGI S2: Design

The smartphone received an all-metal case. You can choose black or red color options. In the red version Umidigi S2 looks more impressive and attractive, however, on the black version the antenna inserts are less noticeable.


The front panel is covered with Gorilla Glass 4 curved around the edges, which has an increased degree of protection from scratches.


The manufacturer focuses on the factor that the body of 6-inch UMIDIGI S2 is almost the same as 5.5-inch smartphones. In addition, despite the rather high capacity of the built-in battery, the thickness of device is only 8.8 mm.


The power and volume control buttons on right side edge. On the left side there is a tray that can simultaneously hold two SIM cards, or an external drive in combination with one SIM. A standard headphone jack is not provided. You can use a symmetrical universal USB Type-C 2.0 connector located on the bottom edge to connect the headphones. Also, there is main speaker and talking microphone.


On the back side is dual camera. You can find an additional microphone for noise cancellation system. Under the flash LED is a sensor fingerprint sensor, which supports the technology of Live Fingerprint Detection. This technology uses predefined templates. It also involves methods of machine learning, so the sensor is able to easily distinguish fake prints from real ones.

UMIDIGI S2: Display

The smartphone received a 6-inch TDDI In-cell displayproduced by SHARP, with a resolution of 1440 x 720. It occupies 90% of the entire front panel area. The display has rounded corners and an aspect ratio of 18:9, which became the standard for the top flagships of 2017, such as Samsung S8, iPhone X and LG V30.

The quality of display is at the highest level, and this is not surprising, since SHARP produces some of the best screens on the market.


UMIDIGI S2: Performance and memory

The smartphone is equipped with 64-bit chipset MediaTek Helio P20, the maximum frequency of 8 cores of which can reach 2.3 GHz. The integrated graphics chip Mali-T880MP2 is responsible for graphics processing, with a maximum frequency of 900 MHz. In short, Helio P20 is a fairly powerful and energy-efficient chipset. Its performance is enough to play 4k-video, run resource-intensive games (for example, World of Tanks Blitz). In AnTuTu test, the smartphone is gaining about 63000 points. In Geekbench 4, the device receives 889 and 3828 points, respectively, in a single-core and multi-core testing mode.

Thanks to a fast 4 GB RAM operating in dual-channel mode, Umidigi S2 provides high speed and excellent multitasking performance. The amount of internal memory is 64 GB. This is more than enough for most users of mobile devices. In addition, if necessary, the storage capacity can be expanded by installing an external microSD memory card up to 256 GB.

UMIDIGI S2: Camera

UMIDIGI S2 has a dual camera setup, which is supplemented by a flash and phase PDAF autofocus. The main sensor is the same as in Xiaomi Redmi Note 4X and OnePlus X. It is 13 megapixel Sony IMX258 with aperture f/2.0. The secondary sensor with a resolution of 5 MP allows to take photos with the bokeh effect, an. The main camera is capable of recording FullHD and 4K video. For shooting selfie, as well as for making video calls, a front 5-megapixel module is provided.

Camera app Umidigi S2 resembles the camera interface in smartphones with MIUI . In addition to the various settings, modes and filters, you can detect Pro mode with advanced menu of manual settings.

In the daytime the white balance is correctly determined, and the images are bright, with a sufficient level of sharpness.


Also worth noting is a good detail, even those objects that are on the distant plans.


With the help of this smartphone you can count on getting high-quality landscape and portrait photos.


During the subject survey, the camera quickly focuses and shows good results.


In conditions of artificial lighting, for example, indoors, it is desirable to take care of fixing the smartphone, in order to avoid blurry frames.


In addition, in photos obtained with insufficient lighting, you can observe what is typical of the camera in any inexpensive smartphone: loss of detail of objects, as well as the presence of noise.


However, given the price category of UMidigi S2, the quality of photos and videos can be considered very good.

UMIDIGI S2: Battery

At the time of the release of smartphone, among bezel-less competitors with the identical aspect ratio of 6-inch screen, the UMIDIGI S2 became the owner of the largest battery – 5100 mAh. And no less important, it is without damaging the design: the thickness of the body is only 8.8 mm.

The battery life is impressive: on singlt charge the smartphone works up to 10 hours in game mode, or 34 hours in Full HD video viewing mode. During both tests, any network connections were deactivated, and the brightness of the backlight did not exceed the minimum level necessary to ensure comfortable visibility in the room. In the moderate mode of operation the built-in battery provides about 2 days.


The smartphone supports fast charging technology Pump Express + 2.0, with the help of a powerful complete power supply. Even a short morning recharge for 30 minutes is enough to ensure that the user can stay in touch all day. It takes about 2.5 hours to fully charge the battery.

UMIDIGI S2: Оperating system

UMIDIGI S2 runs on UMI OS based on Android 6.0. Later the model will receive an update, and as the basis for the new firmware version will be used Android 7.0. It supports multi-window mode, which allows you to split the screen into two applications, and change the size of these windows.

Wireless Interfaces

Like most modern smartphones, UMIDIGI S2 can work with 2 Nano SIM cards simultaneously. The device is compatible with mobile networks 2G, 3G and 4G. The list of supported FDD-LTE frequency bands is 800/1800/2100/2600 (B20, B3, B1, B7).

For a wireless connection, there are interfaces such as Bluetooth 4.0 and Wi-Fi (802.11 b / g / n). UMIDIGI S2 can act as a mobile navigator, thanks to the support of satellite navigation systems GPS (A-GPS), GLONASS, and the presence of a built-in digital compass.

UMIDIGI S2: Advantages and disadvantages

Main advantages:

  • Compact body, as for the 6-inch smartphone;
  • Nice modern design with minimal bezels;
  • High quality materials and good assembly;
  • High performance, quite powerful processor;
  • RAM and built-in memory;
  • High-quality display with a large diagonal;
  • A capacious battery and excellent battery life;
  • Support for fast charging.


  • There is no NFC module;
  • The manufacturer has removed the standard 3.5 mm headphone jack.

Conclusion review UMIDIGI S2

UMIDIGI S2 is a device for those who are looking for a stylish modern smartphone with a large display and minimal bezels. Also, you do not have to carry a Power Bank or a charger.

Thanks to a 6-inch display, a 5100 mAh battery, and a fairly powerful hardware 8-core Helio P20 chipset with 4 GB of RAM and a 64 GB storage,  UMIDIGI S2 will be an excellent option for games, multimedia content and active web surfing. In addition, an affordable price in combination with the broad capabilities of the device is another weighty argument in favor of this model.

Now both black and red UMIDIGI S2 can be bought for only $218 – an excellent price for an excellent smartphone.

Umidigi S2 Review Video