Samsung Galaxy S21 5G Dual SIM 128GB 8GB RAM SM-G991B/DS Phantom White

Product Information

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. Pixels are usually measured in microns (μm). Larger ones are capable of recording more light, hence, will offer better low light shooting and wider dynamic range compared to the smaller pixels. On the other hand, smaller pixels allow for increasing the resolution while preserving the same sensor size. admin (18 January 2021). "Galaxy S21 Slow Motion Feature is Retained!". Hi Speed Cameras . Retrieved 18 January 2021. The "Fan Edition" follow-up was unveiled at Samsung's CES 2022 event on 3 January 2022. The S21 FE serves as the successor to the S20 FE, a series of mid-range variants of their corresponding Galaxy S lineup upon launch. The Fan Edition maintains the majority of the specifications and design of the S21, with slight discrepancies to meet its lower price value. [8] The phone was originally planned to be released in October 2021 but was delayed due to the 2020–present global chip shortage. The S21 FE was released on 11 January 2022. [9] Lineup [ edit ] The Samsung Galaxy S21 5G SM-G991B is an Android Smartphone from Samsung’s Galaxy S series. Its dimensions are 71.2 x 151.7 x 7.9mm, and it weighs 169g. This Samsung Smartphone is powered by Exynos 2100 CPU and Mali-G78 MP14 GPU (Octa-Core processor) And runs Android 11 (One UI 3.1) as Operating System.

a b "Samsung Galaxy S21 5G". GSMArena. Archived from the original on 17 January 2021 . Retrieved 14 January 2021.Despite the 4000mAh battery being fairly sizeable and the screen actually being a lower resolution than previous Samsung S-series phones — Full HD+’s 2400×1080 — Samsung struggles to hit a full day of battery life. Samsung's Galaxy S21 series updated to One UI 4 with new Android 12 features". Engadget . Retrieved 15 November 2021. Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert Megapixel - wide-angle lens - 3x optical zoom - f/1.8 - focus: automatic laser auto focus: - laser focus

One of the main characteristics of the display is its type/technology, on which depends its performance. The S21 and S21+ have similar camera setups to their predecessors but benefit from improved software and image processing. Both have a 12 MP wide sensor, a 64 MP telephoto sensor with 3x hybrid zoom, and a 12 MP ultrawide sensor. The S21 FE also has a similar camera setup to its predecessor but benefits from improved software and image processing. It has a 12 MP wide sensor, an 8 MP telephoto sensor with 3x optical zoom, and a 12 MP ultrawide sensor. The S21 Ultra has a new HM3 108 MP sensor with several enhancements over the previous HM1 108 MP sensor, including 12-bit HDR. It also has two 10 MP telephoto sensors with 3x and 10x optical zoom and a 12 MP ultrawide sensor. [19] The front-facing camera uses a 10 MP sensor on the S21 and S21+, 32 MP sensor on the S21 FE, and a 40 MP sensor on the S21 Ultra. 4K@60 recording is supported on the ultrawide camera on the S21, S21+, and S21 FE and all cameras on the S21 Ultra. All cameras are Samsung except 12MP Ultra Wide on S21 Ultra and 10MP front on S21 and S21+, which are both made by Sony, and the 8MP Telephoto on the S21 FE which is made by SK Hynix.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 model Information about the dimensions of the image sensor used in the device. Usually cameras with larger sensors and less pixel density tend to provide better image quality despite the lower resolution. Hoyle, Andrew (14 January 2021). "Samsung Galaxy S21: What to know about battery life and battery sizes". CNET . Retrieved 17 January 2021.

Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped. The S21 series feature "Dynamic AMOLED 2X" displays with HDR10+ support and "dynamic tone mapping" technology. All models except the S21 FE utilize a second-generation ultrasonic in-screen fingerprint sensor with the latter opting for an optical in-screen system instead. The S21 Ultra is also now able to use 120Hz at 1440p unlike its predecessor (which was limited to 120Hz at only 1080p). [14] ModelAs for the camera specs, The front camera (or Selfie Camera) has 10 megapixels of resolution and a (64MP Telephoto + 12MP Wide + 12MP Ultra Wide) Triple rear camera (Main Camera) with Flash and Auto Focus features. 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. Memory size - User memory is less than the total memory due to storage of the operating system and software used to operate the smartphone features.

Schoon, Ben (14 January 2021). "Galaxy S21 unboxing and first impressions: No charger, but a whole lot of phone [Video]". 9to5Google . Retrieved 17 January 2021.Overall, Samsung’s S21 offers a decent camera system with notable improvements, though also with its own kinks and bugs. FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3700, TDD TD 3500, TDD 2300 Chin, Monica (14 January 2021). "Samsung's Galaxy S21 phones don't include microSD card support". The Verge. Archived from the original on 14 January 2021 . Retrieved 15 January 2021. At night, the low-light capability of the S21 is good, too, but not the best. Owners of the S21 won’t have a whole lot to complain about, for sure, but the moment they go comparing their images to what Apple’s iPhone 12 sensors can do, that may change. The fact of the matter is that Apple does a better job with low-light, and indeed with portrait shots on the “Pro” range of phones, which use a light and distant measurement technology — LiDAR — something Samsung’s Galaxy S21 totally misses out on. One of the re-creatable tests we found was to jump into the camera’s “Director’s View”, which thanks to a new feature in the Exynos 2100 chip allows you to view all three cameras at once plus the front-facing selfie camera, and then jump between them. No doubt, it’s a process that would exhaust most chips, but Samsung’s latest and greatest should be able to handle it. After all, Samsung put this feature here, so it’s not like we’re testing something new isn’t foreseen. Director’s View causes the Exynos 2100 to heat up big time, while focus doesn’t work remarkably well, at least in comparison to regular video modes.