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Realme C51s
Specifications
Price in Bangladesh
| Expected Price | 15,000 |
General
| Device Type | Smartphone |
| Model | RMX3765 |
| Announced | March, 2025 |
| Released | March, 2025 |
| Status | Available |
Hardware & Software
| 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 |
| OS Version | v13 |
| User Interface UI or user interface of a device is the look and feel of the on-screen menu system. How it works, its color scheme, how it responds to button presses, all of these things are part of the user interface. | Realme UI |
| 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. | Unisoc T612 |
| 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 (1.8 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55) |
| CPU Cores | 8 Cores |
| Architecture | 64 bit |
| Fabrication | 12 nm |
| 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-G57 |
| RAM (Memory) RAM (Random Access Memory) is a type of computer memory that can be accessed randomly, any byte of memory can be accessed without touching the preceding bytes that allows 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 |
Design
| Dimensions | 167.2 x 76.7 x 7.5 mm (6.58 x 3.02 x 0.30 in) |
| Weight | 182 g (6.42 oz) |
| Colors |
Shiny Green, Mighty Black |
| Build Material | Glass front, plastic frame, plastic back |
Display
| 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) | IPS LCD |
| Size | 6.74 inches (17.12 cm) |
| Resolution | 720x1600 px (HD+) |
| Aspect Ratio | 20:9 |
| 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. | 260 ppi |
| Screen to Body Ratio | 85.52 % |
| Touch Screen | Capacitive Touchscreen, Multi-touch |
| Brightness | 560 nits |
| Refresh Rate | 90 Hz |
| HDR 10 / HDR+ support |
Rear Camera
| Camera Setup | Dual |
| Main Camera | 50 MP |
| Second Camera | 0.08 MP |
| Autofocus | Phase Detection autofocus |
| OIS | |
| Flash Flash Light => There is commonly two types of flash lights are used in camera mobile phones, LED Flash (LED flash offers lower power consumption with drive circuitry that takes up very little room, LEDs can be strobed faster than any other light source), Xenon Flash (xenon flash produces an extremely intense full-spectrum white light for a very short duration) | LED Flash |
| Image | 8150 x 6150 Pixels |
| Settings | Exposure compensation, ISO control |
| Zoom | Digital Zoom |
| Shooting Modes | Continuous Shooting, High Dynamic Range mode (HDR) |
| Aperture | Aperture f/1.8 |
| Camera Features |
Auto Flash, Face detection, Filters, Touch to focus |
| Video | 1080p@30fps |
| Video Recording Features | 1920x1080, 1280x720 |
| Video FPS | 30 fps |
Front Camera
| Camera Setup | Single |
| Secondary |
5 MP, f/2.2, 28mm (wide), 1/5.0", 1.12µm |
| Flash Flash Light => There is commonly two types of flash lights are used in camera mobile phones, LED Flash (LED flash offers lower power consumption with drive circuitry that takes up very little room, LEDs can be strobed faster than any other light source), Xenon Flash (xenon flash produces an extremely intense full-spectrum white light for a very short duration) | Screen flash |
| Aperture | f/2.2 |
| Camera Features |
Fixed Focus |
| Video | 720p@30fps |
| Video FPS | 30 fps |
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) |
| Placement | Non-removable |
| 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. | 5000 mAh |
| Quick Charging | Super VOOC, 33W: 50 % in 28 minutes |
| USB Type-C | Yes |
Storage
| Storage Type | eMMC 5.1 |
| Storage Capacity | 128 GB |
| USB OTG |
Network
| 2G Network |
GSM 850 / 900 / 1800 / 1900 |
| 3G Network |
HSDPA 900 / 2100 |
| 4G Network |
1, 3, 5, 8, 38, 40 |
| 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. | Standard SIM |
Data
| 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. | |
| 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. | |
| Speed | HSPA, LTE |
| Web Browser Web Browser => a web browser is a software application used to locate, retrieve and display content on the World Wide Web, including Web pages, images, video and other files, The primary function of a web browser is to render HTML, the code used to design or markup webpages. | HTML5 |
Messaging
| SMS SMS (Short Messaging Service) is a text messaging service component of phone, Web, or mobile communication systems. It uses standardized communications protocols to allow mobile phone devices to exchange short text messages over the networks. | Yes |
| MMS MMS (Multimedia Messaging Service) is a standard way to send messages that include multimedia content (audio clips, video clips and images) to and from mobile phones over wireless networks using the WAP protocol. | |
| Email Email (Electronic Mail) is a system for receiving, sending, and storing electronic messages, Similar to a letter, email is text messages that may contain files, images, or other attachments sent via the internet to a recipient by using applications and software prograps. An email address is required to receive email, and that address is unique to the user. | Yes |
| IM IM (Instant Messaging) is an exchange of text messages through a software application, it enable you to create a kind of private chat room with another individual in order to communicate in real time over the Internet. | Yes |
Connectivity
| 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. | v5.0 |
| Wi-fi Hotspot | |
| Infrared Infrared connectivity is an old wireless technology used to connect two electronic devices. It uses a beam of infrared light to transmit information and so requires direct line of sight and operates only at close range. | |
| USB | Mass storage device, USB charging |
| GPS GPS The Global Positioning System 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 |
| 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. |
Media
| FM Radio | Unspecified |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
Sensors & Security
| Fingerprint Sensor | |
| Fingerprint Sensor Position | Side-mounted |
| Light Sensor | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope |
| Face Unlock | Yes |
More
| Made By | China |
Performance Tests
Realme C51s Price in Bangladesh
The Realme C51s is priced at ৳15,000 in Bangladesh for the 6GB RAM and 128GB storage variant. This budget-friendly smartphone packs a punch with its solid performance, large display, and efficient battery life—making it an excellent choice for value-conscious buyers.
Released in March 2025, the Realme C51s brings a clean, modern design with a 6.74-inch 90Hz display, a capable 50MP rear camera, and a powerful Unisoc T612 chipset for everyday use and casual gaming. Running on Android 13 with Realme UI, this phone is targeted squarely at the budget segment but stands out thanks to its 33W fast charging, side-mounted fingerprint sensor, and vibrant design options. It’s an ideal choice for users looking for an affordable smartphone that doesn’t compromise on essentials.
Realme C51s Specifications
Display and Design
The Realme C51s sports a 6.74-inch IPS LCD display with a resolution of 720×1600 pixels (HD+) and a refresh rate of 90Hz. With a brightness peak of 560 nits, the screen remains visible even under bright lighting conditions. Its 20:9 aspect ratio and 85.52% screen-to-body ratio offer an immersive viewing experience—perfect for streaming, browsing, or casual gaming.
Design-wise, the phone features a glass front with a plastic frame and back, which keeps the weight to just 182g. At 7.5mm thin, the C51s is sleek and comfortable to hold. It’s available in two stylish colors: Shiny Green and Mighty Black—both adding a trendy touch to your tech game.
Performance and Processor
Under the hood, the Realme C51s is powered by the Unisoc T612 chipset, built on a 12nm architecture. It houses an octa-core CPU (2x Cortex-A75 at 1.8 GHz + 6x Cortex-A55 at 1.8 GHz), paired with a Mali-G57 GPU—delivering decent performance for multitasking, video streaming, and entry-level gaming.
The device comes with 6GB RAM and 128GB of internal storage, expandable via microSD using a dedicated slot. Whether you’re juggling multiple apps or diving into light gaming, the C51s maintains a smooth, responsive experience for everyday users.
Camera and Video
The Realme C51s features a dual-camera setup on the back, led by a 50MP primary sensor with f/1.8 aperture for bright and detailed shots. The secondary 0.08MP depth sensor assists in portrait shots. Camera features include PDAF (Phase Detection Auto Focus), HDR, digital zoom, touch to focus, and AI enhancements that optimize shots based on lighting and scenes.
For video recording, the rear camera supports up to 1080p@30fps, offering decent clarity for social media content or casual vlogging. On the front, there’s a 5MP selfie camera with an f/2.2 aperture that supports 720p video recording and features screen flash for brighter selfies in low-light conditions.
Battery and Charging
Powering the Realme C51s is a massive 5000mAh battery, ensuring all-day usage without frequent top-ups. When it’s time to recharge, the phone supports 33W SuperVOOC fast charging, capable of charging 50% in just 28 minutes. Whether you’re a student, traveler, or busy professional, the C51s won’t leave you hanging.
Connectivity and 5G Support
While the Realme C51s doesn’t support 5G, it covers a wide range of 2G, 3G, and 4G LTE bands—making it compatible with all major carriers in Bangladesh. It includes:
- Dual SIM support (Standard SIM)
- Bluetooth v5.0
- Wi-Fi with hotspot support
- GPS with A-GPS and Glonass
- USB Type-C port
- OTG support
This ensures reliable connectivity whether you’re browsing, calling, or navigating.
Additional Features
The Realme C51s runs on Android 13 with Realme UI, offering a clean and customizable user experience. It’s equipped with a side-mounted fingerprint sensor, Face Unlock, and essential sensors like a light sensor, proximity sensor, gyroscope, accelerometer, and compass.
Other key features include:
- 3.5mm headphone jack
- FM Radio support (unspecified but likely present)
- Loudspeaker
- USB mass storage and charging
Reason to Buy
Here are some of the top reasons why the Realme C51s is a smart purchase:
- Affordable price tag for a phone with great specs
- Large 6.74-inch 90Hz display for smoother scrolling
- 50MP main camera for high-quality photos
- Long-lasting 5000mAh battery with 33W fast charging
- Expandable storage up to 1TB (via microSD)
- Modern design and slim build for easy handling
- Android 13 with Realme UI for a user-friendly experience
Verdict
The Realme C51s is a budget smartphone that goes above and beyond expectations. With its stylish design, large 90Hz display, reliable performance, and excellent battery life, it stands out as a solid contender in its price range. While it doesn’t offer 5G, the phone delivers where it matters most—making it a great option for students, first-time smartphone users, or anyone seeking a dependable everyday device without breaking the bank.
FAQ
Q: What is the price of Realme C51s in Bangladesh?
A: The Realme C51s is priced at ৳15,000 for the 6GB + 128GB variant.
Q: Does the Realme C51s support 5G?
A: No, the Realme C51s supports up to 4G LTE only.
Q: How fast is the charging on Realme C51s?
A: It supports 33W SuperVOOC fast charging, reaching 50% in about 28 minutes.
Q: Is the storage expandable?
A: Yes, the phone includes a dedicated microSD card slot for expandable storage.
Q: What version of Android does it run?
A: The Realme C51s runs on Android 13 with Realme UI.
Q: Does the Realme C51s have a fingerprint sensor?
A: Yes, it has a side-mounted fingerprint sensor for quick and secure unlocking.
Q: Is Realme C51s good for gaming?
A: It performs well in light to moderate gaming, thanks to the Unisoc T612 chipset and Mali-G57 GPU.
Reviews
Disclaimer Note
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