Samsung Galaxy A21s Review: Price Insights, Full Features, Performance & Alternatives

Introduction: Samsung Galaxy A21s - A Reliable Budget All-Rounder in Bangladesh

Samsung Galaxy A21s, which was launched officially in mid-2025 and remains a viable option on the Bangladeshi Market in 2025 because of its balance specs and Samsung's reliability. This budget phone is designed for those who want a reliable brand and solid performance. It's powered by an Exynos chipset with a large PLS TFT 6.5" display. The quad-camera system, One UI, and multitasking abilities make this a good choice for casual users and students. This review will cover the Samsung Galaxy A21s' price in Bangladesh as well as its specifications, performance of the camera, actual-world use, and whether or not it is still a good buy on today's budget smartphone market.

Unboxing and first impressions: classic Samsung simplicity with practical inclusions

The Samsung Galaxy A21s is easy to unbox. In the box with the Samsung logo, the Samsung Galaxy A21s is packaged along with a USB Type C cable, 15W charger, SIM ejector, standard documentation, and a USB Type C cable. The phone does not come with a silicone cover or earphones, as you would expect at this price.

It feels sturdy and weighty, thanks to its 5000mAh power source, and the glossy back and curved sides provide a comfortable grip. With its minimal bezels and large display area, the 6.5-inch Infinity-O screen immediately attracts your attention.

Samsung One UI Core 2.50 interface is clean and intuitive. Face unlocking and fingerprint registration is quick and easy. For budget-conscious Bangladeshi buyers, the A21s makes a strong first impression--delivering that signature Samsung polish and practicality right from the box.

Samsung's sleek design and build quality combines durability with stylish styling

Samsung Galaxy A21s combines a modern design and a durable plastic construction that is suitable for daily Bangladeshi usage. Its polycarbonate rear panel has a gradient glossy finish, with light reflections. This gives it an elegant look. It is available in Black, Red, White and Blue.

The phone is 8.9mm in thickness and weighs 192g. It feels solid but not heavy. It is comfortable to use, even for extended periods of time. The well-balanced back design and the curved surface make this possible. It is easy and fast to use the side-mounted finger print scanner, which is integrated with the power switch. The physical volume buttons are located on the right.

The four-camera module has been arranged into a rectangle frame which is flush with the surface to prevent wobble. The build is solid, even though it's made of plastic. It can withstand the daily wear and tear that Bangladeshi users are used to.

Samsung prioritizes durability and comfort in its design, which makes the A21s an excellent option for the price range below . Although it may not be a premium phone, the A21s is a great option for those who want style as well as reliability.

Display Large, Bright and Optimized For Multimedia Everyday Use

Samsung Galaxy A21s has a PLS TFT panel measuring 6.5 inches with a resolution of 720 by 1600 pixels (270 PPI). While it's not AMOLED, the PLS technology--Samsung's in-house alternative to IPS--offers decent color reproduction and improved brightness over standard LCDs, which is a plus for Bangladeshi users using their phone outdoors or under strong lighting.

This display has a 20 to 9 aspect ratio. It provides a large, immersive experience for viewing video, browsing social media and other content. Infinity-O's design with its selfie camera hidden in the corner maximizes screen space without sacrificing usability.

Colors appear slightly muted in real life, but they are still pleasant and consistent. The viewing angles are good, with minimal color shifts from the side. The brightness levels (480 nits) are sufficient for outdoor viewing.

The lack of Full HD may be apparent when you are viewing content in high resolution or when reading small text. For a smartphone at this price, the compromises are acceptable.

The A21s displays are ideal for Bangladeshi users who want to watch YouTube videos, Facebook Videos, or browse the web. They're large, bright, and suitable for prolonged use without causing eye fatigue.

Performance: Efficient and conservative for daily use, but powerful for power tasks

Samsung Galaxy A21s powered by Exynos 850, a chipset built in 8nm, with an octa-core Cortex-A55 processor clocked to 2.0 GHz. The Samsung Galaxy A21s is equipped with either 3GB/4GB/6GB RAM and 32GB/64GB/128GB eMMC storage. The chip is more focused on performance than raw power but still manages to handle daily tasks for Bangladeshi users.

The phone is smooth in everyday use, including calls, messages, browsing the web, using social media and YouTube. The One UI Core has been optimized to work with lower-end hardware. This ensures a smooth experience, even on 4GB/64GB models or above. Performance begins to suffer when running multiple apps, especially those that require multitasking and background processing, such as Facebook Lite Messenger or TikTok.

AnTuTu scores the A21s at around 115,000, which is less than some of its newer alternatives, such as Helio G88 and Snapdragon 680. It is best for lighter games like Free Fire and Clash Royale but has frame drop issues in PUBG Mobile, Call of Duty Mobile, or Asphalt Nitro on high or medium settings.

This architecture is designed to conserve energy and keep the device cool, even when used for extended periods. It's a great advantage in Bangladesh because of its high ambient temperature.

Although the eMMC is slower than UFS competitors, this storage option will still be sufficient to launch apps and manage files on a daily basis.

The Galaxy A21s is a great phone for Bangladeshi users, but not for gamers or multitaskers.

Operating System and User Interface: A Single Core UI Focused On Simplicity And Efficiency

Samsung Galaxy A21s is powered by One UI Core 3.1, based on Android 11 and can be upgraded from Android 10. This "Core Edition" of One UI is streamlined to be more efficient on budget phones, and therefore, it's responsiveness. The layout is familiar to Bangladeshi users who are switching from Samsung older phones.

Some high-end features, such as Bixby or DeX, are not included. The animations of the apps are fluid, and UI changes remain smooth even with casual use, particularly on 4GB/64GB, or 6GB/128GB models.

Samsung offers regular updates to its A21s devices, but major Android upgrades will be restricted due to their age. Users still receive security updates via OTA.

One UI Core is a reliable option for Bangladeshi users looking for a simple, ad free interface that includes smart, essential features. This is a great option for seniors, students or working professionals who want simplicity, without excessive complexity or bloat. The A21s is designed to be easy-to-use and safe, even by 2025.

The Camera Quad Lens Set: Versatile and Delivering in the Good Light

Samsung Galaxy A21s has a quad camera setup at the back, including a 48MP sensor, an 8MP wide-angle lens (f/2.2), 2MP macro and 2MP depth sensors. It has a front-facing 13MP camera that is embedded into a hole-punch cutout.

The 48MP sensor is able to capture good details in bright sunlight conditions with a decent dynamic range. Samsung's Color Science produces photos that are social media ready. The colors appear natural, not too saturated. The autofocus works well, and the shutter speed allows for casual photos of food, people and cities.

Edge distortion and details loss are visible with the 8MP Ultra-wide Lens. In well-lit situations, the macro camera can be used but it struggles to focus and maintain sharpness. In portrait mode, the depth sensor creates a nice bokeh effect. However, edge detection may sometimes cause uneven blurring of hairlines and backgrounds.

The main camera is noisy and has reduced clarity at night or when the light level is low. The camera does not have a dedicated night mode. Users must make manual adjustments to get the best results.

In natural light, the 13MP camera produces well-balanced photos with accurate skin tone. The default beauty enhancement is very subtle, but it can be changed. Both front and back cameras can record video at 1080p@30fps, but there is no stabilization.

The Galaxy A21s is a good option for Bangladeshi users that prioritize group photos, social sharing and daylight photography. Night photography and video stabilization are its weaknesses. For less than Rs20,000 it is one of the most versatile and reliable cameras in this segment.

Batteries and charging: a reliable powerhouse for fast charging

Samsung Galaxy A21s comes with a powerful 5000mAh lithium-ion battery. This is a feature which ensures a long life for users of the device in Bangladesh. The device can easily run for a day and half with moderate use, including social media, YouTube and browsing. The phone will last two days for light users such as students and elderly people.

The 8nm Exynos 850 is designed for efficiency. One UI Core has been optimized to minimize background activity. This further increases battery life. The A21s can handle all your mobile data needs, whether you are commuting to work, taking online classes or watching TV series.

Samsung has included a 15W USB Type-C fast charger with the device. The charging time from zero to 100 percent is around two hours. This is acceptable but not as fast as newer midrange phones that have 25W or even 33W speeds.

Its reliable battery backup, despite the fact that it does not support reverse charging or wireless chargers, makes it an ideal choice for Bangladeshi users looking to prioritize durability. Even in 2025, the A21s will still be among the most energy-efficient smartphones of its class.

Connection and network: reliable 4G support with essential features

Samsung Galaxy A21s provides comprehensive connectivity tailored to Bangladeshi users. The Samsung Galaxy A21s supports dual Nano SIMs and 4G LTE, which ensures seamless data use across major Bangladeshi providers. It is compatible with all bands including 2G,3G and 4G in Bangladesh, as well as LTE band 3, 5 and 8.

The A21s has Wi-Fi 802.11a/b/g/n/ac, which is dual-band capable. This allows for stable wireless connections in both the 2.4GHz network and 5GHz network. Bluetooth 5.0 allows for efficient pairing of accessories such as wireless earbuds or smartwatches. GPS, GLONASS and BDS are all included in Bluetooth 5.0, which allows for accurate tracking of location. This is beneficial to navigation apps and location based services.

Users who want wired audio can connect to the device via a 3.5mm jack. The USB Type-C port is also available for data and charging. The A21s also includes NFC, which allows for contactless payments as well as quick pairing of compatible devices.

The Galaxy A21s is a good choice for Bangladeshi users because it offers a wide range of features that ensure reliable performance in everyday tasks like browsing, streaming and communication.

Storage Options: Flexible Configurations and Expandable Memory

Samsung Galaxy A21s comes in a range of configurations for storage to meet the needs of different users. The Samsung Galaxy A21s offers a variety of storage configurations to meet the needs of different users in Bangladesh. The eMMC 5.1 memory is used in all variants, and provides enough performance to handle everyday tasks.

The A21s has a microSD slot for users who need more space. This card can be expanded up to 512GB. It is ideal for large files such as media, documents, or apps without impacting the performance of your device.

The 64GB/4GB variant of the Samsung Galaxy S4 is widely available in Bangladesh and offers a good balance between price and storage. In Bangladesh, for those who want a more powerful performance with greater storage capacity, the 128GB/6GB model can be purchased through various retailers.

The Galaxy A21s is a flexible choice for its segment, offering storage options that can be tailored to the needs of casual users as well as those who have more specific storage requirements.

The sound quality is good enough for daily use, but best with headphones

Samsung Galaxy A21s has a bottom-firing single speaker which delivers mediocre audio quality. The Samsung Galaxy A21s has a single bottom-firing speaker that delivers average audio performance.

The A21s offers Dolby atmos for a more immersive audio experience. This feature is available with either Bluetooth or wired headphones. The A21s offers an immersive audio experience that is ideal for playing video games or watching movies.

This 3.5mm headphone port is an excellent addition that allows users to use their favorite wired headphones directly without adapters. It is especially beneficial to users from Bangladesh, who rely heavily on audio accessories.

In summary, while the built-in speaker of the Galaxy A21s is sufficient for basic tasks like calls and casual media consumption, utilizing headphones--especially with Dolby Atmos enabled--provides a significantly better audio experience.

Unique Features: Practical Enhancements for Everyday Use

Samsung Galaxy A21s has several features to enhance everyday usability for Bangladeshi customers who are looking for reliability and convenience.

• Samsung Knox Security: Offers multi-layered security, protecting personal data against malware and unauthorised access.

• Face Recognition and Rear Fingerprint sensor: Allows for quick, secure unlocking of the device in various scenarios.

• Dolby Support Atmos: Improves the audio quality of music and video when listening with headphones.

• One UI Core Interface : Provides a user-friendly, clean interface that is optimized for performance. This ensures smooth operation on even modest hardware.

• MicroSD slot: Supports up to 512GB of storage, allowing for extensive applications and media libraries.

• Infinity-O display: A 6.5-inch touchscreen with a camera designed as a hole-punch, which maximizes viewing space for a more engaging visual experience.

The Galaxy A21s is a great choice in Bangladesh because it balances essential functionality with enhancements that are user-friendly.

Comparison & Competition: Samsung Galaxy A21s vs Rivals in Bangladesh (2025)

Here's a detailed comparison of the Samsung Galaxy A21s with its top competitors in the Bangladeshi market. This section highlights key specifications, performance, and pricing to help you choose the best option for your needs.

1. Samsung Galaxy A21s vs Xiaomi Redmi Note 10

Price in Bangladesh:

• Galaxy A21s: ৳16,999 (Official)

• Redmi Note 10: ৳17,999 (Official)

Key Differences:

• Display: Galaxy A21s has a 6.5" PLS TFT LCD, while Redmi Note 10 offers a 6.43" Super AMOLED.

• Processor: Galaxy A21s is powered by Exynos 850; Redmi Note 10 uses Snapdragon 678.

• Camera: Both have 48MP main sensors, but Redmi Note 10 includes additional features like a 2MP macro lens.

• Battery: Both devices have a 5000mAh battery with 15W fast charging.

 Winner: Redmi Note 10 – Superior display and processor.

2. Samsung Galaxy A21s vs Realme Narzo 50A

Price in Bangladesh:

• Galaxy A21s: ৳16,999 (Official)

• Narzo 50A: ৳14,999 (Official)

Key Differences:

• Display: Galaxy A21s features a 6.5" PLS TFT LCD; Narzo 50A has a 6.5" IPS LCD.

• Processor: Galaxy A21s uses Exynos 850; Narzo 50A is equipped with MediaTek Helio G85.

• Camera: Galaxy A21s offers a quad-camera setup with a 48MP main sensor; Narzo 50A has a triple-camera setup with a 50MP main sensor.

• Battery: Galaxy A21s has a 5000mAh battery; Narzo 50A offers a larger 6000mAh battery.

 Winner: Realme Narzo 50A – Better performance and battery life at a lower price.

3. Samsung Galaxy A21s vs Infinix Note 10

Price in Bangladesh:

• Galaxy A21s: ৳16,999 (Official)

• Infinix Note 10: ৳15,990 (Official)

Key Differences:

• Display: Galaxy A21s has a 6.5" PLS TFT LCD; Infinix Note 10 offers a larger 6.95" IPS LCD.

• Processor: Galaxy A21s is powered by Exynos 850; Infinix Note 10 uses MediaTek Helio G85.

• Camera: Both have 48MP main sensors, but Infinix Note 10 includes a 2MP depth sensor.

• Battery: Both devices have a 5000mAh battery with 18W fast charging.

 Winner: Infinix Note 10 – Larger display and better performance at a lower price.

4. Samsung Galaxy A21s vs Samsung Galaxy A12

Price in Bangladesh:

• Samsung Galaxy A21s: ৳16,999 (Official)

• Samsung Galaxy A12: ৳14,999 (Official)

Key Differences:

• Display: Both have a 6.5" PLS TFT LCD.

• Processor: Galaxy A21s uses Exynos 850; Galaxy A12 is equipped with MediaTek Helio P35.

• Camera: Both feature a quad-camera setup with a 48MP main sensor.

• Battery: Both devices have a 5000mAh battery with 15W fast charging.

🏆 Winner: Galaxy A21s – Slightly better performance.

5. Samsung Galaxy A21s vs Xiaomi Redmi 10C

Price in Bangladesh:

• Galaxy A21s: ৳16,999 (Official)

• Redmi 10C: ৳13,999 (Official)

Key Differences:

• Display: Galaxy A21s has a 6.5" PLS TFT LCD; Redmi 10C offers a 6.71" IPS LCD.

• Processor: Galaxy A21s is powered by Exynos 850; Redmi 10C uses Snapdragon 680.

• Camera: Galaxy A21s features a 48MP main sensor; Redmi 10C has a 50MP main sensor.

• Battery: Both devices have a 5000mAh battery with 18W fast charging.

Winner: Redmi 10C – Better performance and camera at a lower price.

6. Samsung Galaxy A21s vs Realme C25s

Price in Bangladesh:

• Galaxy A21s: ৳16,999 (Official)

• Realme C25s: ৳14,990 (Official)

Key Differences:

• Display: Galaxy A21s features a 6.5" PLS TFT LCD; Realme C25s has a 6.5" IPS LCD.

• Processor: Galaxy A21s uses Exynos 850; Realme C25s is equipped with MediaTek Helio G85.

• Camera: Galaxy A21s offers a quad-camera setup with a 48MP main sensor; Realme C25s has a triple-camera setup with a 13MP main sensor.

• Battery: Galaxy A21s has a 5000mAh battery; Realme C25s offers a larger 6000mAh battery.

 Winner: Realme C25s – Better performance and battery life at a lower price.

Verdict: A Reliable Daily Driver With Exceptional Battery life

Samsung Galaxy A21s is a reliable smartphone for Bangladeshi consumers looking for a low-cost option. The 5000mAh capacity battery is its most notable feature, as it allows for extended use without the need to charge frequently. Quad-cameras provide versatility in everyday photography and the large 6.5-inch screen offers plenty of space to consume media. While the Exynos 850 processor handles daily tasks adequately, it may lag behind competitors in performance-intensive applications. One UI Core provides a friendly interface for the device, but it does not have some of the features that are found on higher-end devices. The Galaxy A21s offers a good choice to users who prioritize battery life, reliability and performance on the Bangladeshi Market.

Prices and Value: A Balanced Offer for Budget-Conscious Customers

Officially, the Samsung Galaxy A21s with 4GB RAM and a 64GB internal storage is priced at Rs16999 in Bangladesh. The Samsung Galaxy A21s is priced at Rs16,999 in Bangladesh for the 4GB RAM and 64GB storage variant.

The 6.5-inch PLS display is one of the highlights, as are a quad-camera system with 48MP sensor and a powerful 5000mAh battery that supports 15W charging. The Exynos 850 is a powerful processor that can handle routine tasks but may not be able to satisfy gamers who are looking for high-end capabilities.

On the Bangladeshi Market, Redmi Note 10 or Realme Narzo 50A are alternatives that offer more powerful processors and AMOLED screens at comparable price points. The Galaxy A21s is distinguished by Samsung's One UI interface, which has a user-friendly and up to date software update.

The Galaxy A21s is a great value for users who prioritize battery life, versatility of the camera, and brand trust. This is a good choice for professionals, students and regular users who are looking for a reliable smartphone that doesn't stretch their budget.

Target Audience: Practical Bangladeshi users

Samsung Galaxy A21s suits Bangladeshi users perfectly who require a long-lasting, reliable smartphone to use on a daily basis. This is the perfect smartphone for seniors, students and working professionals who value battery life and smooth user interface over power.

The phone's quad camera system and 5000mAh power battery make it a great choice for online courses, social media and YouTube. The A21s is well-suited for those who are interested in mobile banking, light gaming, or messaging apps.

It may not be a good choice for power users or gamers who need high-refresh rate displays and powerful chipsets. Models like the Redmi Note 10 and Infinix Note 30 are likely to better suit this segment.

The A21s offers a good balance between simplicity, reliability, and brand support over the long term.

Availability and After-Sales Support: Accessible Options with Robust Service Network

Samsung Galaxy A21s is still available in Bangladesh via unofficial channels despite the fact that it has been discontinued by official retailers. Bikroy.com, an online marketplace, lists a variety of used and refurbished devices, priced between Rs6,000 and Rs13,000 depending on their condition and specification. These options are affordable, but they lack warranties and may not offer after-sales service.

Samsung Bangladesh has 42 service centers in Bangladesh that are authorized by the company. These service centres employ trained technicians who use genuine parts. The centers offer comprehensive service, such as software support and repairs, to ensure users' peace of mind. Samsung also offers multiple support channels such as an toll-free number (08000 300300), WhatsApp assistance and email support. This allows for prompt and efficient customer service.

Samsung has a vast after-sales network that allows users to maintain and repair the Galaxy A21s, even though it is not available in official channels.

Conclusion: A Long-Lasting Budget Device Still Worth Considering in 2025

Even in 2025, the Samsung Galaxy A21s remains a good option for Bangladeshi users who are on a budget. The phone is a great choice for basic daily tasks thanks to its 5000mAh large battery, dependable four-camera set-up, and Samsung One UI. This phone is ideal for casual users and students who want a strong brand with a smooth UI.

The A21s is still a top choice for battery life, screen size and durability, even though newer models have faster processors. The A21s is a practical and affordable choice, thanks to its presence on the secondary market.

The Galaxy A21s is a good buy if you are looking for longevity, simplicity, and Samsung service.