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- Samsung Galaxy M31 vs Samsung Galaxy M21
Samsung Galaxy M31 vs Samsung Galaxy M21
Samsung Galaxy M31
Samsung Galaxy M31 android/smartphone comes with 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio), Super AMOLED capacitive touchscreen, 16M colors display, and resolution 1080 x 2340 pixels, 19.5:9 ratio (~411 ppi density). Galaxy M31 performing Octa-core (4×2.3 GHz Cortex-A73 & 4×1.7 GHz Cortex-A53), Exynos 9611 (10nm) processor. It has 6 GB of RAM and 64/128 GB internal storage, which can be expanded microSDXC (dedicated slot) external storage. This stylish device has 64 MP, 8 MP, 5 MP, 5 MP camera in the back, and 32 MP camera on the front side. It was powered by a standard 6000 mAh Li-po battery.
Samsung Galaxy M21
Samsung Galaxy M21 smartphone/android comes with 6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio), Super AMOLED capacitive touchscreen, 16M colors display, and resolution 1080 x 2340 pixels. Galaxy M21 is equipped with a 2.3 GHz dual-core processor and an Octa-core (4×2.3 GHz Cortex-A73 & 4×1.7 GHz Cortex-A53) processor, both are seated on the Exynos 9611 (10nm) chipset. Samsung Galaxy M21 has an internal memory of 64/128 GB, which can keep a lot of files and data of the user. There is an expandable memory slot that can keep up to microSDXC (dedicated slot) with the help of a microSD card. This stylish device has a 48 MP, 8 MP, 5 MP camera in the back, and a 20 MP camera on the front side. It was powered by a standard 6000 mAh Li-polymer battery.
Prices
| Official Official prices and mobile phones are available only in authorized shops. The device comes with an official warranty and the device is listed on the BTRC database in Bangladesh. | 8GB 128GB ৳23,999 6GB 128GB ৳18,999 |
| Unofficial Unofficial prices and phones are available only non authorized shops. The device does not come with an official warranty in Bangladesh. | 6GB 64GB ৳18,000 / 6GB 128GB ৳20,000 4GB 64GB ৳19,000 / 6GB 128GB ৳21,000 |
Launch
| Announced | 2020, February 25 2020, March 18 |
| Status | Available. Released 2020, March 5 Available. Released 2020, March 23 |
Network
| Technology | GSM / CDMA / HSPA / LTE GSM / CDMA / HSPA / LTE |
| 2G bands It’s the 2nd generation mobile data communication technology. | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G bands It is the 3rd generation mobile data communication technology. | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands It is the 4th generation mobile data communication technology. | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100) LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Speed | HSPA, LTE-A HSPA, LTE-A |
| GPRS GPRS (General Packet Radio Service) is a packet-oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications (GSM), Generally, GPRS is used for the purpose of wireless data transfer, such as sharing pictures and videos or browsing the Internet via a mobile phone connection. | Yes Yes |
| EDGE EDGE (Enhanced Data GSM Environment) is a wireless network technology generally considered the next step in the 2G network offers data transfer rates up to four times faster than ordinary GSM networks, Generally, EDGE is used for the purpose of wireless data transfer, such as sharing pictures and videos or browsing the Internet via a mobile phone connection. | Yes Yes |
Body
| Dimensions It's the size of the phone in format (H x L x W) and the volume of the phone where available. | 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) 159 x 75.1 x 8.9 mm (6.26 x 2.96 x 0.35 in) |
| Weight | 191 g (6.74 oz) 188 g (6.63 oz) |
| Build Describes the construction materials, methods and finishes used by the manufacturer when building a phone. | Glass front (Gorilla Glass 3), plastic back, plastic frame Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM SIM (Subscriber Identity Module) is a small card that contains a mobile network subscriber's account information. This allows the phone to use the card to attach to a mobile network. The SIM card is most commonly associated with GSM and UMTS mobile networks. Moving a SIM card from one phone to another allows a subscriber to switch mobile phones without having to contact their mobile network carrier. SIM cards can also be used by a phone to store limited amounts of data, such as phone numbers and text messages. | Dual SIM (Nano-SIM, dual stand-by) Dual SIM (Nano-SIM, dual stand-by) |
Display
| Type A number of display technologies and types used in mobile phones TFT (Thin Film Transistor), IPS (In-Place Switching), OLED (Organic Light Emitting Diode), AMOLED (Active-Matrix Organic Light-Emitting Diode), Super AMOLED (an even advanced version of AMOLED), Resistive Touchscreen (Resistive touchscreens contain two-layer of conductive material with a very small gap between them which acts as a resistance), Capacitive Touchscreen (Capacitive touchscreen technology consists of a layer of glass coated with a transparent conductor) | Super AMOLED capacitive touchscreen, 16M colors Super AMOLED capacitive touchscreen, 16M colors |
| Size The industry-standard way of representing display sizes is publishing their length in inches. The screen-to-body ratio is a measure that relates to the size of the screen bezels. The bigger the ratio, the smaller the bezels are, meaning the display takes up a larger area on the device's front. | 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio) 6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio) |
| Resolution Display Resolution is the measuring way of how much pixels does a display contains. A higher resolution means more pixels and more pixels provide the ability to display more visual information (resulting in greater clarity and more detail). | 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) |
| Protection | Corning Gorilla Glass 3 Corning Gorilla Glass 3 420 nits max brightness (advertised) |
Platform
| OS Every Mobile Phone system runs on a base software called Operating System (OS). Operating System controls all basic operations of the Mobile (such as smartphones, PDAs, tablet computers, and other handheld devices). The Operating System allows the user to install and run third party applications (apps), apps are used to add new functionality to the device. | Android 10.0; One UI 2.0 Android 10.0; One UI 2 |
| Chipset It is a group of integrated circuits designed to perform one or more dedicated functions, often with real-time computing constraints, Popular smartphones are equipped with more advanced embedded chipsets that can do many different tasks depending on their programming. | Exynos 9611 (10nm) Exynos 9611 (10nm) |
| CPU CPU (Central Processing Unit) mostly known as processors, CPU processes instructions in order to carry out certain functions that make your device operate properly. Processors are often described as the brain of computers, smartphones and tablets, Smartphones and tablets rely on processors to carry out their every task, Processors are an incredibly important factor in selecting any type of computing device, including your smartphone. | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| GPU GPU (Graphics Processing Unit) is a single-chip processor designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display, This includes things such as lighting effects, object transformations, and 3D motion. | Mali-G72 MP3 Mali-G72 MP3 |
Memory
| Card slot A special slot for inserting a memory card for expanding your storage. It is a special slot for inserting a memory card. Memory cards allow you to expand the phone's built-in memory, A memory card (sometimes called a flash memory card or a storage card) is a small storage medium used to store data such as text, pictures, audio, and video, for use on small, portable or remote computing devices such as mobile phones, mp3 players, digital cameras. | microSDXC (dedicated slot) microSDXC (dedicated slot) |
| Internal Internal memory is the memory available onboard (chip or motherboard) which is given while manufacturing at the factory. is a data storage space (flash memory) mostly used in smartphones, tablets, and other electronic devices where operating system, apps, music, photos, videos, files, and other user data Is stored. | 64/128 GB UFS 2.1 64/128 GB UFS 2.1 |
| RAM RAM (Random Access Memory) is a type of mobile, computer memory that can be accessed randomly, any byte of memory can be accessed without touching the preceding bytes that allow information to be stored and accessed quickly from random locations. RAM is the most common type of memory found in computer systems, smartphones, tablets, and other electronic devices. | 6 GB 4/6 GB |
Main camera
| Triple | 48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, (depth) |
| Quad | 64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF
8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm
5 MP, f/2.2, 25mm (macro), 1/5.0", 1.12µm
5 MP, f/2.2, (depth) |
| Features | LED flash, panorama, HDR LED flash, panorama, HDR |
| Video | 2160p@30fps, 1080p@30fps, gyro-EIS 2160p@30fps, 1080p@30fps |
Selfie camera
| Single | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 20 MP, f/2.0, 26mm (wide) |
| Features | HDR HDR |
| Video | 1080p@30fps 1080p@30fps |
Sound
| Alert types | Vibration, MP3, Ringtones Vibration, MP3, Ringtones |
| Loudspeaker Loudspeaker is a small sound driver fitted within a mobile phone, which is used to produce sound. | Yes Yes |
| 3.5mm jack A common connector for plugging in audio output or input. | Yes Yes |
Connectivity
| WLAN Wireless Local Area Network (WLAN) is a method of distributing data wirelessly to a local area network practically to the internet. It is a popular wireless networking technology using radio waves to provide high-speed network connections that allow devices to communicate without cords or cables, Wi-Fi is increasingly becoming the preferred mode of internet connectivity all over the world. | Wi-Fi 800.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices. It is a wireless communications technology for exchanging data between mobile phones, headsets, computers, and other network devices over short distances without wires, Bluetooth technology was primarily designed to support simple wireless networking of personal consumer devices. | 5.0, A2DP, LE 5.0, A2DP, LE |
| GPS GPS (Global Positioning System) originally Navstar GPS, is a satellite-based radio navigation system. It is a satellite-based radio navigation system, GPS permits users to determine their position, velocity, and the time 24 hours a day, in all weather, anywhere in the world, In order to locate your position, your device or GPS receiver must have a clear view of the sky. | Yes, with A-GPS, GLONASS, BDS Yes, with A-GPS, GLONASS, BDS |
| NFC NFC (Near Field Communication) is a shorter range of high-frequency data transferring technology. It is a set of standards for smartphones and similar devices to establish peer-to-peer radio communications with each other by touching them together or bringing them into proximity, usually no more than a few inches. | No No |
| FM radio FM broadcasting is a method of radio broadcasting using frequency modulation technology. | Yes Yes |
| USB USB is a standard for a wired connection between two electronic devices, including a mobile phone and a desktop computer. | 2.0, Type-C 1.0 reversible connector 2.0, Type-C 1.0 reversible connector |
| Infrared port IrDA (Infrared Data Association) is an old data sharing technology in the means of Infrared Port. It uses a beam of infrared light to transmit information and so requires a direct line of sight and operates only at close range. | |
Features
| Sensors A sensor is a device, module, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics. The specific input could be light, heat, motion, moisture, pressure, and location, The output is generally a signal that is converted to use in computing systems, a location sensor, such as a GPS receiver is able to detect the current location of your electronic device. | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Messaging SMS (short message service) is a text messaging service component of most telephone, internet, and mobile-device systems. | SMS(threaded view), MMS, Email, IM SMS(threaded view), MMS, Email, IM |
| Browser A web browser is a software application for accessing information on the world wide web. | HTML5 HTML5 |
| Java JAVA is a Runtime Environment or platform of application where particular apps can run it. | No No |
Battery
| Type Cell phones run on various kinds of batteries depending on the manufacturer, phone size or shape, and features. There are basically four types of cell phone batteries Lithium Polymer (Li-Po), Lithium-Ion (Li-Ion), Nickel Metal Hydride, and Nickel Cadmium. | Non-removable Li-Po Non-removable Li-Po |
| Capacity The unit of capacity is milliamp-hours (mAh), which means 3000mAh can be put on the battery to discharge it in one hour. The battery capacity represents the maximum amount of energy that can be extracted from the battery under certain conditions. | 6000 mAh 6000 mAh |
More
| Made by | Korea Korea |
| Color | Ocean Blue, Space Black, Red Midnight Blue, Raven Black |
| Other Features | Fast battery charging 15W Fast charging 15W
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