Galaxy A21s vs Galaxy A40
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Galaxy A21s
Starting at
£60.24£219.00 new
Galaxy A40
Starting at
£71.42£229.00 newWhat's the difference between the Galaxy A21s and Galaxy A40?
Galaxy A21s vs A40 comes down to the chipset, RAM and battery. Refurbished, the Galaxy A21s starts at £60.24, £11.18 less than the Galaxy A40. The Galaxy A21s is the newer model, released in 2020.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Exynos 850 on the Galaxy A21s, Exynos 7904 on the Galaxy A40.
- The Galaxy A40 has more RAM: 4 GB vs 3 GB.
- The Galaxy A21s has a bigger battery: 5000 mAh vs 3100 mAh.
Galaxy A21s vs Galaxy A40 specs
The Galaxy A21s and Galaxy A40 each suit different needs based on their strengths. The Galaxy A21s offers a larger battery and a bigger screen, suitable for longer use between charges and more viewing space. The Galaxy A40 has a higher screen resolution, more RAM, and a sharper front camera, benefiting those who prefer a sharper display and smoother multitasking. The Galaxy A21s also carries a higher resolution main camera for detailed photos, while the Galaxy A40 is lighter and more compact, fitting comfortably in pockets. Storage options differ slightly, with the Galaxy A21s available in 32GB and 64GB, and the Galaxy A40 stocked in 64GB. Both run Android and support 4G networks.
Galaxy A21s vs Galaxy A40 price
Colour
Galaxy A21s vs Galaxy A40 battery life and software updates
Durability covers battery size and software support. These affect how long the phone lasts on a charge and how long it can keep up with system updates.
Battery Capacity
The Galaxy A21s has a 5000 mAh battery, which is well suited for longer daily use without needing a charge. This makes it a good choice if you often use your phone for extended periods away from power. The Galaxy A40's 3100 mAh battery is smaller, which suits users who charge more frequently or use their phone less intensively.
Software Updates
Both run on Android but will not receive the newest system features or security patches.
Battery
Fast charging
Foldable
Software updates
Year of release
Galaxy A21s vs Galaxy A40 performance
Performance depends on the processor, memory, and storage options. These affect how well the phone handles apps and multitasking.
Processor and RAM
The Galaxy A21s uses the Exynos 850 chipset with 3 GB of RAM, making it suitable for everyday tasks and basic app use. The Galaxy A40 uses the Exynos 7904 with 4 GB of RAM, which offers extra memory to keep more apps open and run multitasking more smoothly.
Storage Options
The Galaxy A21s is stocked in 32GB and 64GB versions, providing a choice if you want a lower priced or larger storage model. The Galaxy A40 is available in a 64GB version, offering a single storage size that suits users wanting more space for apps and files.
Chipset
RAM
Galaxy A21s vs Galaxy A40 screen
Screen quality affects how images and text look, and the amount of space you have for viewing content.
Screen Size
The Galaxy A21s has a larger 6.5 inch screen, which is better for watching videos and browsing where more space is useful. The Galaxy A40 has a smaller 5.9 inch display, which suits those who prefer a phone that is easier to hold one-handed.
Resolution and Screen Type
The Galaxy A40 features a higher resolution of 1080 x 2340 pixels and a Super AMOLED screen type, delivering sharper and more vibrant images. This makes it a good choice if you want crisp visuals and deeper colours. The Galaxy A21s has a 720 x 1600 resolution with a PLS LCD screen, which is clear for everyday use but less detailed than the A40.
Resolution
Screen size
Screen type
Galaxy A21s vs Galaxy A40 camera
Audiovisual features focus on camera quality, affecting how detailed your photos and selfies can be.
Main Camera
The Galaxy A21s offers a 48 megapixel main camera, which captures photos with high detail. This suits users who prioritise detailed rear photos for everyday photography.
Front Camera
The Galaxy A40 has a 25 megapixel front camera, making it well suited for clear, detailed selfies and video calls. The Galaxy A21s has a 13 megapixel front camera, suitable for standard selfie and video needs.
Camera type
Front camera
Main camera
Galaxy A21s vs Galaxy A40 size and design
Other practical differences include size, weight, SIM options, and expandable storage which affect comfort, connectivity, and flexibility.
Physical Size and Weight
The Galaxy A21s is larger and heavier, measuring 163.7 mm by 75.3 mm and weighing 192 g, which fits users who prefer a bigger phone. The Galaxy A40 is smaller and lighter at 144.4 mm height, 69.2 mm width, and 140 g weight, making it easier to carry and use one-handed.
SIM Card Options
The Galaxy A21s supports a single physical SIM card, while the Galaxy A40 has dual physical SIM slots. The dual SIM option suits users who want to use two phone numbers or plans on one device.
Expandable Storage
Both phones support microSDXC cards, allowing you to add extra storage if you need more space for media and apps.
Network Compatibility
Both devices work on 4G networks and come unlocked, giving flexibility to choose your mobile carrier.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy A21s or Galaxy A40: which should you buy?
Buy the Galaxy A21s if
- you want to spend less: it starts at £60.24, £11.18 less than the Galaxy A40
- you want a bigger battery (5000 mAh vs 3100 mAh)
- you want a bigger screen (6.5 inch vs 5.9 inch)
Buy the Galaxy A40 if
- you want more RAM (4 GB vs 3 GB)
- you want an OLED screen
- you want a higher-resolution front camera (25 megapixels vs 13 megapixels)
What our customers say
Customers of the Galaxy A21s often praise the phone's condition and quality, describing it as looking like new and performing well after some initial setup. Many highlight the excellent service and reliability of the handset, with several mentioning they have bought multiple phones for family members. The larger size and battery suit users who want longer usage times, while some note minor frustrations with out-of-the-box performance. Overall, users appreciate the phone's value for everyday use.
Reviews for the Galaxy A40 focus on its compact size and good condition, with many customers happy with the phone fitting easily in pockets and feeling lighter. The higher screen resolution and camera quality appeal to those wanting a sharper display and detailed selfies. Some users, especially older buyers, find the size comfortable. The phone is described as working well and meeting expectations for a refurbished device.
The Galaxy A21s suits users who want a bigger screen and longer battery life, while the Galaxy A40 fits those looking for a sharper display and lighter, smaller design.
Galaxy A21s vs Galaxy A40 FAQs
Galaxy A21s vs A40 comes down to the chipset, RAM and battery. Chipset: Exynos 850 on the Galaxy A21s, Exynos 7904 on the Galaxy A40. The Galaxy A40 has more RAM: 4 GB vs 3 GB.
The Galaxy A21s is cheaper refurbished, from £60.24 compared with £71.42 for the Galaxy A40.
The Galaxy A21s has a bigger battery: 5000 mAh vs 3100 mAh.
The Galaxy A21s has a higher-resolution main camera: 48 megapixels vs 16 megapixels.
The Galaxy A21s no longer gets updates. The Galaxy A40 no longer gets updates.
The Galaxy A21s adds a bigger battery (5000 mAh vs 3100 mAh), a bigger screen (6.5 inch vs 5.9 inch) and a higher-resolution main camera (48 megapixels vs 16 megapixels). Refurbished, it costs £11.18 less (from £60.24 vs £71.42).
Refurbished, the Galaxy A21s comes in 32GB and 64GB, and the Galaxy A40 in 64GB.








