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Samsung Galaxy S21 5G
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Battery: Li-Ion 4000 mAh
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RAM: 8GB, 8GB
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Storage: 128GB, 256GB
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Display: Dynamic AMOLED 2X, 6.2 inches
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Camera: Rear 12 MP+64 MP+12 MP, and Front 10 MP
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OS: Android 11, upgradable to Android 14, One UI 6
Full Specifications
General
| Model | Samsung Galaxy S21 5G |
| Announced | 2021, January 14 |
| Released | 2021, January 29 |
| Status | Available |
Price
| Official | 63499 BDT 8GB/128GB Approx. |
| Unofficial | 52999 TK |
| Used | 20999-25999 BDT/256GB (2026 update) |
| Used Green line | 11000-15000 BDT (2026 update) |
Design
| Dimensions | 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in) |
| Weight | 169 g (Sub6), 171 g (mmWave) (5.96 oz) |
| SIM SIM (Subscriber Identity Module) is a small card that contains mobile network subscriber's account information. This allows the phone using 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. |
Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by) IP68 dust/water resistant (up to 1.5m for 30 min) |
| Colors |
Phantom Gray, Phantom White, Phantom Violet, Phantom Pink |
Display Specification
| Display Type Display Technology => 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 Touchsceen (Capacitive touchscreen technology consists of a layer of glass coated with a transparent conductor) | Dynamic AMOLED 2X |
| Size | 6.2 inches, 94.1 cm2 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio |
| Refresh Rate | 120Hz |
| Pixel Density Pixel Density (PPI) is refers to the concentration of pixels on a particular display, measured in pixels per inch (ppi). Pixel density is calculated by dividing the diagonal pixel resolution of a display by its diagonal size, higher pixel density better display quality. | 421 ppi density |
| Display Protection Display Protection => Gorilla Glass is a special alkali-aluminosilicate glass shield with exceptional damage resistance that helps protect mobile displays from scratches, drops, and bumps of everyday use, It is always better to go for a smartphone with Gorilla Glass for that added protection and peace of mind. | Corning Gorilla Glass Victus |
| Features |
HDR10+, 1300 nits (peak) 87.2% screen-to-body ratio Always-on display |
Storage
| Card Slot Memory Card Slot 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. | No |
| Internal Storage Internal Storage 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. |
128GB 8GB RAM, 256GB 8GB RAM UFS 3.1 |
Main Camera
| Camera Setup | Triple |
| Resolution |
12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS 64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video |
| Features |
LED flash, auto-HDR, panorama |
| Video | 8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS |
Selfie Camera
| Camera Setup | Single |
| Resolution |
10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF |
| Video | 4K@30/60fps, 1080p@30fps |
| Features |
Dual video call, Auto-HDR |
Platform
| Operating System OS => Every computer system run on a base software called Operating System (OS). Operating System controls all basic operations of the computer (such as smartphone, 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 11, upgradable to Android 14, One UI 6 |
| Chipset Chipset is a group of integrated circuits designed to perform one or a 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 2100 (5 nm) - International; Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China |
| 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 (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International; Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China |
| 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-G78 MP14 - International; Adreno 660 - USA/China |
Battery
| Battery Type 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, Lithium Ion, Nickel Metal Hydride and Nickel Cadmium. | Li-Ion (Lithium Ion) |
| Capacity Battery Capacity is a measure (typically in Amp-hr) of the charge stored by the battery, and is determined by the mass of active material contained in the battery. The battery capacity represents the maximum amount of energy that can be extracted from the battery under certain conditions. | 4000 mAh |
| Removable | No |
| Charging |
25W wired, PD3.0 15W wireless (Qi/PMA) 4.5W reverse wireless |
| Wireless Charging Wireless Charging (Inductive Charging) uses an electromagnetic field to transfer energy between two objects. This is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device. | Yes |
Multimedia
| Loudspeaker | Yes, with stereo speakers |
| Audio Jack | No |
| Audio Features |
32-bit/384kHz audio Tuned by AKG |
Sensors
| Fingerprint | Yes (under display, ultrasonic) |
| Other Sensors | accelerometer, gyro, proximity, compass, barometer |
Network & Connectivity
| Technology | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| Speed | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL) |
| Wi-fi Wi-Fi is a popular wireless networking technology using radio waves to provide high-speed network connections that allows devices to communicate without cords or cables, Wi-Fi is increasingly becoming the preferred mode of internet connectivity all over the world. | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Bluetooth Bluetooth 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 |
| NFC NFC (Near field communication) 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. | Yes |
| Positioning |
GPS, GLONASS, BDS, GALILEO |
| FM Radio | Yes |
| USB | USB Type-C 3.2, OTG |
| 2G Network |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model only) CDMA 800 / 1900 & TD-SCDMA |
| 3G Network |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO |
| 4G Network |
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G991B |
| 5G Network |
2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B |
PROS
- Compact and lightweight design
- Bright and smooth 120Hz AMOLED display
- Flagship-grade performance with top-tier processor
- Great camera system with excellent zoom and video capabilities
- IP68 water and dust resistance
- Wireless and reverse wireless charging support
CONS
- No microSD card slot
- No charger in the box
- Battery life is average for heavy users
- Plastic back (while frame is aluminum) feels less premium
- No S Pen support
About the Samsung Galaxy S21 5G Price in Bangladesh
Samsung Galaxy S21 5G-এর ২০২6 সালে বাংলাদেশে নতুন সেটের আনঅফিশিয়াল দাম সাধারণত প্রায় ৬৩,০০০–৬৬,০০০ টাকার মতো, আর ইউজড সেট সাধারণত প্রায় ১৩,০০০–২৬,০০০ টাকার মধ্যে ওঠানামা করছে, কন্ডিশন ও ভ্যারিয়েন্ট অনুযায়ী।
নতুন (New) Samsung S21 5G দাম ২০২৬
- 01.অনেক সাইটে এখনো S21 5G-কে নতুন/আনঅফিশিয়াল হিসেবে ৬৩–৬৬ হাজার টাকার রেঞ্জে দেখাচ্ছে (৮/১২৮ বা ৮/২৫৬ ভ্যারিয়েন্ট)।
- 02.উদাহরণ: কিছু প্রাইস পোর্টালে ২০২৫–২০২৬ আপডেট অনুযায়ী ৮/১২৮ ভ্যারিয়েন্টের প্রাইস প্রায় ৬৩,৫০০–৬৬,০০০ টাকা বলা আছে।
- 03.অনেকে “প্রি-অনড কিন্তু ব্র্যান্ড নিউ কন্ডিশন” টাইপ হিসেবে বিক্রি করে প্রায় ২৫,৯৯৯ টাকা (৮/২৫৬) এর আশেপাশে রাখছে, যেটা প্র্যাক্টিক্যালি ইউজড/রিফার্বিশড সেগমেন্টে পড়ে।
রেফারেন্স প্রাইস (New / Like-New)
| ভ্যারিয়েন্ট | অবস্থা | আনুমানিক দাম (BDT) | সোর্স |
|---|---|---|---|
| 8/128 GB | আনঅফিশিয়াল নতুন | ~৬৩,৫০০–৬৬,০০০ | Basundhara City shopping mall |
| 8/256 GB | প্রি-অনড/লাইক-নিউ | ~২৫,৯৯৯ | Bikroy |
মার্কেট রিয়েল কেসে ২০২৬-এ একদম সিল্ড অফিশিয়াল নতুন সেট পাওয়া কঠিন, বেশিরভাগই আনঅফিশিয়াল/স্টক-ওল্ড বা প্রি-অনড।
ইউজড (Used / রিকন্ডিশন্ড) দাম ২০২৬
- Bikroy-তে সাম্প্রতিক লিস্টিং অনুযায়ী, S21/S21 5G ইউজড সেট ৯,৫০০–২৬,০০০ টাকার রেঞ্জে ঘোরাফেরা করছে, গড়ে ১৩,০০০–২২,০০০ এর মধ্যে সবচেয়ে বেশি দেখা যায়।
- কিছু ভ্যারিয়েন্ট ৮/২৫৬ বা ভালো কন্ডিশনে ২১,০০০–২৬,০০০ পর্যন্ত যাচ্ছে, আবার কিছু পুরনো/সমস্যাযুক্ত সেট (যেমন পার্শিয়াল ড্যামেজ) ১০–১৫ হাজারের কাছেও পাওয়া যাচ্ছে।
- ব্যবহৃত ফোন শপগুলোর সাইটে (যেমন Gadget Man, NextHand) S21 সিরিজের প্রি-অনড শুরু হচ্ছে সাধারণত প্রায় ২৫,৯৯৯ টাকার কাছাকাছি থেকে, ভাল কন্ডিশন ও ওয়ারেন্টি সহ।
রেফারেন্স প্রাইস (Used)
আপনি কেনার আগে কী ধরলে ভালো হবে
- ইমপোর্ট/স্টক ভ্যারিয়েশন: আনঅফিশিয়াল নতুন দামের সাথে অনেক ক্ষেত্রে ভাল প্রি-অনড সেটের প্রাইস ওভারল্যাপ করে, তাই ভ্যালু ফর মানি হিসেবে “শপ ওয়ারেন্টি সহ প্রি-অনড” প্রায়ই বেশি লাভজনক।
- গ্রিন লাইন / ডিসপ্লে ইস্যু: ১৩–১৫ হাজারে যে অনেক অফার দেখছেন, সেগুলোর বেশিরভাগেই ডিসপ্লে গ্রিন লাইন/বর্ণ আউট ইস্যু থাকে, তাই রিসেল ভ্যালু এবং রিপেয়ার কস্ট কনসিডার করতে হবে।
- প্রাইস চেক সোর্স: প্র্যাকটিক্যালি Bikroy, NextHand, আর কিছু ফেসবুক পেজ/শপ (যেমন Unique Point, Gadget Man) একসাথে দেখে গড় প্রাইস ধরলে বেশি রিয়ালিস্টিক ফিগার পাবেন।
See Another Model:
FAQs about Samsung Galaxy S21 5G
Q: Does the Galaxy S21 support 5G?
A: Yes, the Galaxy S21 5G supports all major 5G bands.
Q: Can I expand the storage with a microSD card?
A: No, the Galaxy S21 5G does not have a microSD card slot.
Q: Does it have a glass or plastic back?
A: The back is made of plastic, but it has a high-quality matte finish.
Q: Is the display Full HD or QHD?
A: The S21 5G has a Full HD+ resolution (2400 x 1080 pixels).
Q: How is the battery life?
A: The 4000mAh battery provides decent battery life for daily use but may need charging by evening for heavy users.
Q: Is the phone waterproof?
A: Yes, it has an IP68 rating for water and dust resistance.
Q: Does it come with a charger in the box?
A: No, Samsung does not include a charger in the box.
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