
Compare models
Galaxy A05s Vs Galaxy S21 5G
- 1-year minimum warranty
- Free delivery on all items
- Free 30-day returns
Differences at a glance
The Samsung Galaxy A05s (2023) and the Samsung Galaxy S21 5G (2021) represent two different approaches to the smartphone experience. While the Galaxy A05s is a modern entry-level device focusing on essential features and a large display, the Galaxy S21 5G was originally a flagship model designed to offer high-end performance and advanced camera capabilities. Both run on the Android operating system, providing a familiar interface for Samsung users, but they cater to different priorities regarding size, connectivity, and overall speed.
Available Models
Colour
Storage (GB)
Scores
Durability
These devices differ significantly in their release dates and the level of long-term software support provided by the manufacturer over time.
- Software Longevity: The Galaxy S21 5G, despite its 2021 release, was part of a premium update programme, meaning it has already received several major Android versions and is approaching the final stages of its official software support cycle. In contrast, the Galaxy A05s was released in late 2023, offering a newer starting point for its lifecycle, though entry-level models typically receive fewer years of major updates than flagship series.
- Build and Repairability: The Galaxy S21 5G features a more robust construction with a metal frame, whereas the Galaxy A05s uses a full plastic body that is lightweight but may feel different in hand. Both devices are designed with standard components, making common repairs like screen or battery replacements manageable for professional technicians.
- Practical Lifespan: Users can expect the Galaxy A05s to remain relevant for basic tasks for several years due to its newer hardware, while the Galaxy S21 5G remains a capable performer but may see its security update frequency decrease sooner.
Year of Release
2023
2021
Compatible with latest Update
No
Yes
OS
Android
Android
Foldable
No
No
Performance
Performance differences between these two models are most noticeable when multitasking or running demanding applications in a professional or gaming context.
- System Responsiveness: The Galaxy S21 5G was built for high-speed tasks, allowing for smooth transitions between multiple open apps and a very responsive feel during intensive use like mobile gaming. In contrast, the Galaxy A05s is optimised for everyday activities such as browsing the web, checking emails, and using social media, where it maintains steady performance without excessive power draw.
- Battery and Charging: The Galaxy A05s carries a larger battery capacity, which often translates to longer intervals between charges for users who primarily use their phones for communication and light media. The Galaxy S21 5G has a smaller battery but supports more advanced charging features, including wireless charging, which is absent on the A05s.
- Storage and Memory: Both devices offer various storage configurations to hold photos and apps, but the Galaxy S21 5G typically includes more internal memory (RAM), which helps the system handle many background processes without slowing down.
Screen quality
The viewing experience varies between these models based on the display technology used and the physical size of the screen for media consumption.
- Display Technology: The Galaxy S21 5G utilises an AMOLED screen, which provides deep blacks and high contrast, making it well-suited for watching high-definition videos. The Galaxy A05s uses an LCD panel, which offers natural colour reproduction and is very clear for reading text and general navigation, though it does not achieve the same level of contrast as the flagship display.
- Smoothness and Refresh Rate: Both phones offer higher-than-standard refresh rates, but the Galaxy S21 5G provides a more fluid visual experience during scrolling and animations. The Galaxy A05s also offers a smooth experience that is a significant step up from basic screens, though it operates at a slightly lower frequency than the flagship model.
- Screen Size: For users who prefer a larger canvas, the Galaxy A05s features a 6.7-inch display, providing ample space for video calls and reading. The Galaxy S21 5G is more compact at 6.2 inches, making it easier to operate with one hand while still maintaining high clarity.
Resolution
1080 x 2400
1080 x 2400
Screen type
PLS LCD
Dynamic AMOLED 2X
Audiovisual
Photography capabilities are a major point of distinction, with one device focusing on simplicity and the other on versatility for different environments.
- Versatility in Shooting: The Galaxy S21 5G features a triple-lens system, including a dedicated telephoto lens for zooming in on distant subjects without losing detail. The Galaxy A05s focuses on a high-resolution main sensor that captures clear images in well-lit environments, supported by secondary lenses for close-up shots and depth effects.
- Video and Low Light: Recording video is more advanced on the Galaxy S21 5G, which supports higher resolutions and better stabilisation for smooth footage while walking. It also handles low-light environments more effectively, producing brighter images with less visual noise compared to the Galaxy A05s.
- Audio and Media: The Galaxy S21 5G includes stereo speakers for a more immersive sound experience when watching movies. The Galaxy A05s provides a standard single-speaker setup but retains a traditional headphone jack, allowing users to connect wired headphones without an adapter.
Main camera
50 megapixels
12 megapixels
Front camera
13 megapixels
10 megapixels
Miscellaneous
Practical features like connectivity and physical design play a significant role in daily convenience and how the device fits into your lifestyle.
- Connectivity Standards: The Galaxy S21 5G supports 5G networks, enabling faster mobile data speeds in areas with coverage. The Galaxy A05s is a 4G device, which is perfectly adequate for standard streaming and browsing but does not access the latest high-speed network bands.
- Security and Sensors: For unlocking the device, the Galaxy S21 5G uses an advanced sensor hidden under the display, while the Galaxy A05s integrates a reliable fingerprint reader into the power button on the side. Both methods offer secure and quick access to the phone.
- Portability and Build: The Galaxy A05s is larger and heavier due to its screen size, which may be a consideration for users with smaller hands. The Galaxy S21 5G is notably slimmer and lighter, fitting more easily into pockets and offering a more compact feel during extended use.
Weight
194 g
169 g
Screen size (in)
6.7
6.2
Mobile network
4G
5G
SIM card
Dual Physical SIM
Dual Physical SIM + eSIM
Carrier compatibility
Unlocked
Unlocked
What the community thinks
The choice between the Galaxy A05s and the Galaxy S21 5G depends largely on whether a user prioritises modern essentials or legacy flagship features. Based on user feedback from various tech communities, the Galaxy S21 5G is often praised for its compact size, vibrant screen, and powerful performance that still holds up well today. However, some users note that its battery life can be shorter during heavy use compared to newer models. The Galaxy A05s receives positive mentions for its impressive battery endurance and the inclusion of a headphone jack, though some users find it less suited for high-end gaming or professional-grade photography.
Users who prioritise a large screen for media consumption and a battery that reliably lasts through a full day of use may find the Galaxy A05s to be a practical choice. On the other hand, users who prefer a more compact device with a high-quality camera and 5G connectivity will likely lean toward the Galaxy S21 5G. Choosing a quality-assured refurbished option for either of these models is a sustainable choice that helps reduce electronic waste while providing a reliable device. Ultimately, both smartphones offer a solid Samsung experience, with the A05s serving as a dependable modern entry point and the S21 5G remaining a versatile, high-performance alternative as an eco-friendly alternative to buying new. This comparison highlights that the right device depends on individual needs for speed, photography, and physical size.











