Samsung Galaxy A21s

A 6.5 inches (16.51 cm)PLS TFT LCD display with 720 x 1600 pixels resolution graces the Samsung Galaxy A21s. The display has a 270 ppi pixel density. Under the hood, the device is powered by a 64 bitOcta core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)Samsung Exynos 8 Octa 850 CPU and . Samsung Galaxy A21s is powered by a 5000 mAhLi-ion battery . The smartphone has 4 GB of RAM and 64 GB of internal storage. In terms of software, the Samsung Galaxy A21s comes preloaded with Android v10 (Q) and the Samsung One UI overlay. The smartphone has an 48 MP + 8 MP + 2 MP + 2 MP in terms of optics. The phone has a 13 MP camera for a selfie. For further security, the gadget has a fingerprint sensor on the Rear.Samsung Galaxy A21s has 4G VoLTE, Wi-Fi 802.11, ac/b/g/n/n 5GHz, Bluetooth v5.0, GPS with A-GPS, Glonass, a 3.5mm audio connector and a USB Type-C port are among the device's connectivity features.

Highlights of Samsung Galaxy A21s:

  • Display Size: 6.5 inches (16.51 cm)
  • Screen Resolution: 720 x 1600 pixels
  • CPU: Samsung Exynos 8 Octa 850
  • RAM/ROM: 4 GB/ 64 GB
  • Battery: 5000 mAh Li-ion
  • OS: Android v10 (Q) with Samsung One UI
  • Camera: 48 MP + 8 MP + 2 MP + 2 MP
  • Network Support: 4G, 3G, 2G

Samsung Galaxy A21s Performance

Mobile performance is a term that refers to the speed and responsiveness of a mobile device. It is used to measure how well the device responds to user input and how quickly it can complete tasks. There are many factors that can affect the performance of a mobile device, but most of them relate to hardware.

Under the hood, the Samsung Galaxy A21s boasts a Samsung Exynos 8 Octa 850 chipset, offering a 64 bit architecture. Samsung Galaxy A21s is powered by Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55) processor. Samsung Galaxy A21s graphics is powered by and it has 4 GB of RAM and 64 GB GB of ROM.

  • Chipset: Samsung Exynos 8 Octa 850
  • Architecture: 64 bit
  • Processor: Octa core (2 GHz, Quad core, Cortex A55 + 2 GHz, Quad core, Cortex A55)
  • Graphics:
  • RAM: 4 GB
  • ROM: 64 GB
Samsung Galaxy A21s Design

Mobile phones are getting bigger and bigger each year.

Now, the average size of a mobile phone is 6.5 inches tall, 3.4 inches wide and 0.33 inches thick. It weighs around 5 ounces and has a display with a resolution of 1080 x 2160 pixels or more. These are the most common sizes for smartphones today.

Most people prefer larger screens because they can see more content on it, but there are some who prefer smaller screens because they don't want to carry around such a heavy device in their pockets or bags all day long.

The Samsung Galaxy A21s showcases a sleek and compact design. It stands at a height of 163.7 mm, with a width of 75.3 mm and a thickness of 8.9 mm. The device weighs 192 grams, making it lightweight and comfortable to hold. It comes with color options: Black, Blue, White, adding a touch of elegance to its overall appearance.

  • Height: 163.7 mm
  • Width: 75.3 mm
  • Thickness: 8.9 mm
  • Weight: 192 grams
  • Colours: Black, Blue, White
Samsung Galaxy A21s Display

Display of mobile devices is one of the most important factors in selecting a device. The screen size, resolution, pixel density, display type, refresh rate and touch screen are some of the factors that need to be considered before buying a device.

The display is the screen which can be either an actual physical screen or a virtual one like in smartphones and tablets. Display size is measured by length and width in inches. Screen resolution is how many pixels are on the display (the higher the number of pixels on the display, the sharper your image will look). Pixel density is how many pixels per inch there are on your display (the higher your pixel density number, the sharper your image will look).

The Samsung Galaxy A21s features an immersive display experience. With a screen size of 6.5 inches (16.51 cm), it offers ample viewing space. The screen resolution is set at 720 x 1600 pixels, ensuring crisp and clear visuals. With a pixel density of 270 ppi, images and text appear sharp and detailed. The display type is PLS TFT LCD, providing vibrant colors and excellent brightness levels. The device also incorporates a smooth refresh rate, resulting in smoother animations and fluid scrolling. It is equipped with a capacitive touchscreen that supports multi-touch functionality, allowing for intuitive and responsive interactions.

  • Screen Size: 6.5 inches (16.51 cm)
  • Screen Resolution: 720 x 1600 pixels
  • Pixel Density: 270 ppi
  • Display Type: PLS TFT LCD
  • Refresh Rate:
  • Touch Screen: Yes Capacitive Touchscreen, Multi-touch
Samsung Galaxy A21s Camera

Mobile cameras are more popular because they are cheaper, more portable and the quality of their images have increased significantly in recent years.

A camera consists of three main parts: the lens, the shutter and the sensor. The lens focuses light from the subject onto the sensor which converts it into an electric signal which is then processed by a computer inside the camera to create photo files on a memory card or hard drive.

The shutter controls how long light can enter through the lens and hit the sensor, while aperture controls how much light goes through at any given time and ISO controls how sensitive to light is.

The Samsung Galaxy A21s is equipped with a capable camera setup to capture memorable moments. The primary camera boasts a resolution of 13 MP f/2.2 Primary Camera. For low-light situations, the device is equipped with an LED flash to provide adequate illumination. The camera supports video recording capabilities, allowing you to capture your favorite moments in motion. The image resolution goes up to 8000 x 6000 Pixels, enabling large and high-resolution captures. Various camera settings such as Exposure compensation, ISO control are available for fine-tuning your shots. The camera offers shooting modes like Continuous Shooting, High Dynamic Range mode (HDR) mode for more creative possibilities. Additional features include 8 x Digital Zoom, Auto Flash, Face detection, Touch to focus. On the front, there is an for capturing selfies and video calls.

  • Camera Setup: Single
  • Auto Focus: No
  • Resolution: 13 MP f/2.2 Primary Camera
  • Flash: No
  • Video Recording: 1920x1080 @ 30 fps
  • Image Resolution: 8000 x 6000 Pixels
  • Settings: Exposure compensation, ISO control
  • Shooting Modes: Continuous Shooting, High Dynamic Range mode (HDR)
  • Camera Features: 8 x Digital Zoom, Auto Flash, Face detection, Touch to focus
  • Front Camera Resolution:
Samsung Galaxy A21s Battery

Batteries are one of the most important parts of a mobile device. They provide power for the device and make it possible to use it for a long time without having to recharge. Batteries can be divided into two main types - Lithium Ion and Nickel Metal Hydride.

Lithium Ion batteries are popular because they have a higher capacity than Nickel Metal Hydride batteries, meaning they can last longer on a single charge. They also have more advantages in terms of safety, weight and volume. The downside is that they take longer to charge than Nickel Metal Hydride batteries, which is why many devices come with quick charging technology that allows them to be charged up to 80% in 30 minutes or less.

Quick charging is one of the most common features on modern smartphones, allowing one to charge their phone in less than an hour.

The Realme C55 is equipped with 5000 mAh battery, ensuring long-lasting power. The battery type is Li-ion, known for its reliability and efficiency. The device also supports fast charging technology, Yes Fast, 15W. The Samsung Galaxy A21s is equipped with a convenient USB Type-C port for charging and data transfer.

  • Capacity: 5000 mAh
  • Type: Li-ion
  • Fast Charging: Yes Fast, 15W
  • USB Type-C: Yes
Samsung Galaxy A21s Connection

The main features of a mobile phone are the size of the SIM card, the network support, and whether it has VoLTE or not. eSIM is gaining popularity over the physical SIM and lots of network providers are supporting eSIM now. Network support is what kind of network you can use with your phone - GSM, CDMA, 3G, LTE, or 5G. VoLTE and VoWiFi is a new feature that allows you to make calls while on a call over Wifi and other networks instead of just through the cellular network.

Bluetooth is another important feature that allows you to connect to other devices wirelessly like keyboards or speakers. You can also use it to exchange files with other devices without having to plug them.

The Samsung Galaxy A21s offers versatile connectivity options to keep you connected wherever you go. It supports SIM1: Nano, SIM2: Nano. The device is compatible with 4G, 3G, 2G networks, ensuring broad network support for seamless communication. It also supports VoLTE for high-quality voice calls over 4G networks. For wireless connectivity, the Samsung Galaxy A21s is equipped with Bluetooth v5.0, enabling fast and stable connections with compatible devices.

The Samsung Galaxy A21s supports Wi-Fi Wi-Fi 802.11, ac/b/g/n/n 5GHz at both 2.4 GHz and 5 GHz frequencies, allowing for fast and reliable wireless internet connections. The device also features Wi-Fi Direct, Mobile Hotspot functionality, enabling you to share your internet connection with other devices.

For navigation purposes, the device comes with GPS support, including A-GPS and Glonass, ensuring accurate positioning and location services.

In terms of wired connectivity, the Samsung Galaxy A21s supports USB connectivity for both mass storage device usage and USB charging.

  • Sim Size: SIM1: Nano, SIM2: Nano
  • Network Support: 4G, 3G, 2G
  • VoLTE: Yes
  • Bluetooth: v5.0
  • SIM 1: 4G Bands:TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 850(band 5) / 800(band 20)3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS:Available EDGE:Available
  • SIM 2: 4G Bands: TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 850(band 5) / 800(band 20)3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS:Available EDGE:Available
  • WiFi: Wi-Fi 802.11, ac/b/g/n/n 5GHz
  • WiFi Features: Wi-Fi Direct, Mobile Hotspot
  • GPS: with A-GPS, Glonass
  • USB Connectivity: Mass storage device, USB charging
Samsung Galaxy A21s Multimedia

Smart phones have become an integral part of our lives. They are used for a lot more than just making phone calls.

Audio Jack: The audio jack is a physical interface for sound input and output. It is typically a 3.5mm audio plug, Type-C or Lightening port.

Loud Speaker: Loudspeakers are designed to convert electrical signals into audible sound waves, which may be transmitted to listeners in a room or space via a sound reinforcement system.

Audio Features: Audio features are the different ways that an app can handle audio information and provide it to the user through their device’s speakers or headphones.

The Samsung Galaxy A21s offers a convenient multimedia experience with its audio capabilities. It comes equipped with a loudspeaker, allowing you to enjoy audio content without the need for headphones. Additionally, the device features a 3.5 mm audio jack, enabling you to connect your favorite headphones or external speakers for a more personalized audio experience.

  • Loudspeaker: Yes
  • Audio Jack: 3.5 mm
Samsung Galaxy A21s Special Features

Mobile phones are the new technological revolution. They have progressed from simply being a phone to becoming a complete tool for entertainment, communication and navigation.

Some of the special features that phones have nowadays are fingerprint sensors, barometer, three-axis gyro, accelerometer and proximity sensor.

The fingerprint sensor is used to unlock the phone instantly with just one touch of your finger. The barometer is used to measure air pressure which can be helpful in forecasting weather conditions. The three-axis gyro is used to measure angular velocity which can be helpful in video stabilization and augmented reality games. The accelerometer measures linear acceleration which can be helpful in motion detection or game control while the proximity sensor detects objects that are near the phone and turns off screen when you put it close to your ear while talking.

The Samsung Galaxy A21s offers a range of special features to enhance your smartphone experience. It is equipped with a fingerprint sensor for secure and convenient unlocking of your device. The fingerprint sensor is positioned on the Rear of the device, ensuring easy access with your thumb or finger.

In addition to the fingerprint sensor, the Samsung Galaxy A21s incorporates several other sensors. Samsung Galaxy A21s sensors includes Light sensor, Proximity sensor, Accelerometer, Gyroscope.

  • Fingerprint Sensor: Yes
  • Fingerprint Sensor Position: Rear
  • Other Sensors: Light sensor, Proximity sensor, Accelerometer, Gyroscope

Variants

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When buying or selling aything, always consider safety precautions.

  • Use the same precautions online as you would offline. When meeting someone for the first time.
  • Insist on a high traffic, well-lit, public meeting place like a cafe. Never meet in a secluded area.
  • Never agree to move to a secondary location. This is a red flag.
  • Never invite a stranger into your home or go to a stranger’s home at any time during the transaction.
  • Use extra precautions, especially when buying/selling high value items.
  • Always tell a friend or family member where you're going and when you should be back.
  • Check-in when you get there and check-in when you are finished and leaving.
  • Always have a friend go with you. There is safety in numbers.
  • Arrive early at the predetermined location and observe what is happening around you. Trust your instincts. If something does not feel right, STOP, do not proceed. Abandon the deal.
  • Protect personal and financial information from disclosure.
  • Post photos without Geotag information.
  • Don't be so desperate to sell something that you are willing to sell away your safety.
  • Use proxy email addresses and not your true address.
  • Consider using secondary phone number instead of giving out your primary phone number.
  • Deal locally, face-to-face.
  • Only extent payment after you have safety met in person using the above mentioned precautions.
  • There is a higher risk for fraud with deals that involve shipping. The best deals are with those you can meet safely in person.
  • Never wire funds (e.g. eSewa, Khalti,..., etc). A request for you to wire funds should be a warning sign that the transaction is probably a scam.
  • Even cashier/certified checks or money orders can be fake. If you deposit or cash a fake check, the bank will hold you responsible.
  • Only get involved in transactions with the seller, no third parties.
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