The aperture (f-stop number) indicates the size of the lens diaphragm opening, which controls the amount of light reaching the image sensor. The lower the f-stop number, the larger the diaphragm opening is, hence, the more light reaches the sensor. Usually, the f-stop number specified is the one that corresponds to the maximum possible diaphragm opening. Specific Absorption Rate (SAR) The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg. Head SAR (EU)

Information about the number of pixels per centimeter (ppcm) or per inch (ppi) of the display. The higher the pixel density, the more detailed and clearer is the information displayed on the screen. Information about the process technology used in manufacturing the chip. The value in nanometers represents half the distance between elements that make up the CPU. This SAR rating shows the maximum level of exposure to electromagnetic radiation taken when the device is placed next to the ear. The applicable limit for the US is 1.6 W/kg per 1 g of tissue. In the US the FCC tests and sets the SAR limits for all mobile devices, which are controlled by the CTIA. Information about additional software and hardware features of the rear camera which improve its overall performance.The fingerprint sensor in the Galaxy S23 Ultra is one of the easiest and most secure ways to protect your smartphone. By incorporating a proximity sensor, the Galaxy S23 Ultra smartphone offers enhanced usability and convenience, automatically adapting its behavior based on the user's proximity to the device. A notable feature of the Samsung Galaxy S23 Ultra smartphone is its inclusion of an ambient light sensor, allowing the device to adapt the screen brightness in real-time, delivering optimal readability and power efficiency throughout the day. Information about the sensor type of the camera. Some of the most widely used types of image sensors on mobile devices are CMOS, BSI, ISOCELL, etc.

One of the main characteristics of the cameras is their image resolution. It states the number of pixels on the horizontal and vertical dimensions of the image, which can also be shown in megapixels that indicate the approximate number of pixels in millions. This SAR rating shows the highest level of exposure to electromagnetic radiation measured when the device is placed at the hip level. The top SAR value for mobile devices used in Europe is limited to 2 W/kg per 10 g of tissue. This standard follows the ICNIRP Guidelines 1998 as well as the IEC standards and is determined by the CENELEC. The display resolution shows the number of pixels on the horizontal and vertical side of the screen. The higher the resolution is, the greater the detail of the displayed content. GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 UMTS stands for Universal Mobile Telecommunications System. Based on the GSM standard, it is deemed as a 3G mobile network standard. It has been developed by the 3GPP and its major advantage is the provision of greater bandwidth and spectral efficiency, due to the W-CDMA technology.Front camera Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc. Sensor type GHz ARM Cortex-X3, 2x 2.8 GHz ARM Cortex-A715, 2x 2.8 GHz ARM Cortex-A710, 3x 2.0 GHz ARM Cortex-A710 Display The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc. Type/technology

In photography, the Field of view (FoV) depends not only on the focal length of the lens but also on the sensor size. It is derived from the lens's angle of view and the sensor's crop factor. The lens's angle of view is a measure of the angle between the two farthest separated points within the frame measured diagonally. Simply put, this is how much of a scene in front of the camera will be captured by the camera's sensor. Focal length is the distance in millimeters from the focal point of the image sensor to the optical center of the lens. The 35 mm equivalent indicates the focal length at which a full-frame camera will achieve an angle of view that's the same as the one of the camera of the mobile device. It is measured by multiplying the native focal length of the camera by the crop factor of the sensor. The crop factor itself can be determined as the ratio between the diagonal distances of the image sensor in the 35 mm camera and a given sensor.This phone has Dual SIM capability, which means that you can insert two different SIM cards and use them both from one phone. The Galaxy S23 Ultra's IP68 certification guarantees protection against dust particles and water immersion up to a certain depth. Experience the convenience of fast charging with the Galaxy S23 Ultra smartphone, ensuring that you spend less time tethered to an outlet and more time enjoying your device's features. The Samsung Galaxy S23 Ultra runs on Android OS v13.0 out of the box, but the Galaxy S23 Ultra's firmware can be upgraded to a newer version of OS. Android offers extensive customization options, allowing users to personalize their devices with different wallpapers, themes, and launchers. Users can also configure various settings to tailor the device's behavior to their preferences. The Samsung Galaxy S23 Ultra comes with Qualcomm Snapdragon 8 Gen2 chipset, accompanied by 8 GB of RAM and 128 GB of internal storage.