
The Samsung Galaxy A40 is a fantastic smartphone that's packed with impressive features. It has a 5.9-inch Super AMOLED display, which is perfect for watching videos or browsing the web.
The Galaxy A40 is available in four different colors: black, white, blue, and coral. You can choose the one that suits your style the most.
This phone is powered by an Octa-core processor, which ensures smooth performance and efficient battery life. With up to 4GB of RAM, you can multitask with ease and run multiple apps simultaneously.
Hardware and Design
The Samsung Galaxy A40 has a 5.9-inch Super AMOLED 'Infinity-U' display with an 85.5% screen-to-body ratio. This is an impressive display, and it's one of the reasons why the Galaxy A40 is so easy to use.
The device measures 144.4 mm by 69.2 mm by 7.9 mm, making it one of the smallest and lightest phones in its class. It's a great size for one-handed use, and you can easily slip it into a pocket or purse.
The Galaxy A40 is available in three colors: blue, coral (pink), and white. It's a sleek and stylish phone that's sure to turn heads.
Hardware
The Samsung Galaxy A40 has a 5.9-inch Super AMOLED 'Infinity-U' display with an 85.5% screen-to-body ratio. This display is a notable feature of the device.
Its dimensions are 144.4 mm by 69.2 mm by 7.9 mm, making it a compact smartphone.
The Exynos 7904 chipset powers the Galaxy A40, providing a smooth performance.
The device has a 3100 mAh battery, which is a significant capacity for a smartphone.
It comes with a microSIM and dual nano SIM slot, supporting VoLTE.
You can only get the Galaxy A40 with 64GB of storage and 4GB of RAM.
However, you can expand the storage to up to 512GB via the microSD card slot.
Design and Display
The Samsung Galaxy A40 has a 5.9-inch Super AMOLED display with a screen-to-body ratio of 85.5%.
This display is surrounded by a sleek design that makes it easy to hold in one hand. The Galaxy A40 measures 144.3 x 69.0 x 7.9mm, making it the shortest and narrowest of Samsung's new A series line-up.

The device is available in three colors: blue, coral (pink), and white. Its lightweight frame and glass and plastic combo give it a premium look and feel.
Round the back, you'll find a centralized fingerprint scanner, power and volume keys on the right side, and a 3.5mm headphone jack, USB-C port, and single speaker at the base.
The Galaxy A40 has a small, camera-sized notch in the middle of the screen, known as the Infinity-U display.
Here are the display specifications:
- Size: 149.2mm (5.9" full rectangle) / 144.7mm (5.7" rounded corners)
- Resolution: 2340 x 1080 (FHD+)
- Technology: Super AMOLED
- Colour Depth: 16M
Variants
The Samsung Galaxy A40 comes in various variants, each with its own unique features and availability. All variants are dual-SIM, which means you can use two different SIM cards at the same time.
The SM-A405FD variant is unknown, while the SM-A405FM is exclusive to Russia. The SM-A405FN, on the other hand, is manufactured in Vietnam and available in Europe, Ukraine, Caucasus, Kazakhstan, and Uzbekistan. The SM-A405S is only available in South Korea, specifically for SK Telecom.
Here's a breakdown of the different variants:
Note that some variants may end with "/DS", indicating that they are dual-SIM variants.
Camera and Performance
The Samsung Galaxy A40 has a dual rear camera arrangement with a 16 megapixel, f/1.7 aperture sensor as the main camera and a 5 megapixels camera lens with an f/2.2 aperture as the second camera. The front camera is 25 megapixels.
The rear-mounted LED flash and video recording capabilities are also worth mentioning. You can record video at a maximum resolution of 2336x1080 pixels in full mode.
The camera quality will not be impacted during the refurbishment process, and the phone features two rear cameras that use a main 16MP sensor and a 5MP depth sensor for blurring backgrounds to create a portrait effect.
The phone uses a 3,100mAh battery that’s fast charging and has an overall battery endurance rating of 73 hours. You can expect great performance from the Galaxy A40, with 4GB of RAM and an Octa-core Exynos 7885 processor.
Here are the key specs:
- 4GB of RAM
- Octa-core Exynos 7885 processor
- 64GB of storage (microSD up to 512GB)
- 3,100mAh battery with fast charging
Camera
The Galaxy A40 has a dual rear camera arrangement with a 16 megapixel, f/1.7 aperture sensor as the main camera and an ultra-wide 5 megapixels camera lens with an f/2.2 aperture as the second camera.
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The front camera is a 25 megapixels sensor, which is perfect for taking clear selfies.
The A40 has a rear-mounted LED flash as well as video recording capabilities.
Maximum video recording resolution is 2336x1080 pixels in Full mode, and you can even record stereo audio with the internal microphones.
Audio recording with external USB microphones is supported, but it's mixed to mono.
The camera quality of a Galaxy A40 is not impacted during the refurbishment process, thanks to a 70-point diagnostic check that ensures excellent camera quality.
If a fault with the camera is detected, it's replaced and retested to ensure perfect working condition.
The Galaxy A40 features two rear cameras that use a main 16MP sensor and a 5MP depth sensor for blurring backgrounds to create a portrait effect.
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Video Performance
The Samsung Galaxy A40 can record Full HD video at 30fps and 1080p.
The camera is capable of capturing high-quality video, but it's worth noting that it's not able to optically stabilise video recordings.
This means that you may notice a bit more shaky footage, especially when recording in low-light conditions or when you're moving around.
However, the Galaxy A40's video performance is still impressive, and you'll be able to capture some great moments with it.
Performance

The Samsung Galaxy A40 is a powerhouse of a phone, and its performance is top-notch. You can expect great performance from this device, thanks to its 4GB of RAM and Octa-core Exynos 7885 processor.
The A40's processor is a key factor in its impressive performance. The Exynos 7885 processor is a capable and efficient chip that can handle demanding tasks with ease.
One of the standout features of the A40 is its storage capacity. With 64GB of internal storage, you'll have plenty of room for your apps, photos, and music. And if that's not enough, you can expand your storage up to 512GB with a microSD card.
Here are the key specs that make the A40's performance so impressive:
- 4GB of RAM
- Octa-core Exynos 7885 processor
- 64GB of storage (microSD up to 512GB)
Overall, the A40's performance is one of its strongest features. Whether you're gaming, browsing, or just using your phone for everyday tasks, you can expect a smooth and responsive experience.
Software and Features
The Samsung Galaxy A40 was launched with Android 9.0 "Pie" and the One UI skin. It's eligible for two major Android OS upgrades.
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The device received its first major upgrade to Android 10 with One UI 2.0 in April 2020. This update brought significant improvements to the user experience.
In late March 2021, Samsung released One UI 3.1 with Android 11, which marked the final major Android OS upgrade for the 2019 Galaxy A series. The Galaxy A40 reached its end of life in June 2023 with the May 2023 security patch.
The Galaxy A40 features a Full HD+ display with a 'Super AMOLED' panel, resulting in precise and bright visuals.
Software
The Galaxy A40 originally shipped with One UI skin based on Android 9.0 "Pie". This device is eligible for two major Android OS upgrades.
Samsung has released One UI 2.0 with Android 10 for Galaxy A40 in April 2020. This upgrade brought new features and improvements to the device.
The final major Android OS upgrade for the Galaxy A40 was One UI 3.1 with Android 11, released in late March 2021. This marked the end of major upgrades for the device.
The Galaxy A40 reached its end of life in June 2023, with the May 2023 security patch being the last update for the device.
Key Features

The Samsung Galaxy A40 is a solid choice for those looking for a mid-range device with impressive tech. It features a 149.86 mm (5.9 inches) screen size with a resolution of 1080 x 2340 pixels at 437 ppi.
The display is a Full HD+ panel with a 'Super AMOLED' panel that delivers precise and bright visuals. This is a notable feature considering the device's price point.
The Galaxy A40 has a 85.5% screen-to-body ratio, which means a significant portion of the device is dedicated to the screen. This is a great aspect for users who want a immersive viewing experience.
It's worth noting that the Galaxy A40 is slightly smaller and lighter than the Galaxy A50, with dimensions of 144.4 mm (5.68 inches) in height and 69.2 mm (2.72 inches) in width.
Storage and Battery
The Samsung Galaxy A40 has a decent storage capacity, with 64GB of internal storage that can be expanded up to 512GB with a microSD card. This is a great option for those who want to store a lot of photos, videos, and apps without running out of space.
The battery life is also a strong point of the A40, with a 3,100mAh battery that can last up to 73 hours on a single charge. This is made even more convenient with 15W fast charging capabilities, allowing you to quickly top up your battery when you're on the go.
Here are some key battery stats to keep in mind:
- Internet Usage Time(3G) (Hours): Up to 9
- Internet Usage Time(LTE) (Hours): Up to 11
- Internet Usage Time(Wi-Fi) (Hours): Up to 11
- Video Playback Time (Hours): Up to 14
- Battery Capacity (mAh, Typical): 3100
- Removable: No
- Audio Playback Time (Hours): Up to 62
- Talk Time (3G WCDMA) (Hours): Up to 18
Storage/Memory
The Samsung Galaxy A40 has 64GB of storage, which is a good amount for most users. You can also expand it by up to 512GB with a microSD card.
The A40 comes with 4GB of RAM, which is enough to keep Android 9 ticking along without any issues. This is thanks to the 1.8GHz octa-core chipset.
You'll get around 49.4GB of available storage out of the box, which is a decent amount to start with. However, if you're someone who takes a lot of photos or videos, you may need to expand it further.
The good news is that the A40 supports external storage, so you can add a microSD card to increase your storage capacity. This is a great feature to have, especially if you want to store a lot of media files.
Here's a quick rundown of the A40's storage specs:
- Memory (GB): 4
- Storage (GB): 64
- Available Storage (GB): 49.4
- External Storage Support: MicroSD (Up to 512GB)
Battery
The battery life of a Samsung Galaxy A40 is a crucial aspect to consider, especially for heavy users. The phone comes with a 3,100mAh battery, which is a decent capacity for a mid-range device.
This battery capacity allows for up to 73 hours of overall battery endurance, according to the manufacturer's stats. In terms of real-world usage, you can expect up to 9 hours of internet usage time on 3G, up to 11 hours on LTE, and up to 11 hours on Wi-Fi.
The phone also supports 15W fast charging, which can quickly top up the battery. However, it's worth noting that the battery is not removable, so you'll need to rely on the phone's charging capabilities.
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Here's a breakdown of the Samsung Galaxy A40's battery life:
Overall, the Samsung Galaxy A40's battery life is decent, but it may not last a full day with heavy usage. However, the fast charging capabilities and option to expand storage with a microSD card make it a viable option for those who need a reliable device.
Additional Features
The Samsung Galaxy A40 is a feature-packed device that's hard to ignore. It has a 85.5% screen-to-body ratio, which is impressive considering its compact size.
The device features a fingerprint scanner for secure biometric authentication. This adds an extra layer of security to your phone, so you don't have to worry about your personal data being compromised.
You can also enjoy your favorite tunes through the 3.5mm headphone jack, which is a convenient feature for music lovers.
Device Charger Included
Our refurbished devices arrive complete with a USB charging lead.
This means you won't need to worry about sourcing a matching charger online.
Each device comes with a 3 Pin UK mains plug, so you can charge your smartphone as soon as it arrives.
You'll be up and running in no time, with no extra costs or hassle.
Does Device Support Wireless Charging?
If you're looking for wireless charging on your device, you're out of luck with the Samsung Galaxy A40, which doesn't come with this feature as standard.
For some devices, like the Samsung Galaxy A40, you can purchase wireless charging adaptors and cases online to open up this feature.
The Samsung Galaxy A40's lack of wireless charging means you'll need to rely on traditional charging methods.
Is it waterproof?
The Samsung Galaxy A40 is not waterproof. It was designed this way from the start, and refurbishing it won't change that.
The Galaxy A40 doesn't have an IP rating, which is a measure of a device's water and dust resistance. This means it's not designed to withstand exposure to water.
If you accidentally drop your Galaxy A40 in the pool or a bathtub, you shouldn't expect it to survive. The lack of water resistance is a key thing to keep in mind when using this device.
It's worth noting that the Galaxy A40 was released in 2019 without any water-resistant features. This is still the case today, even if you've had it refurbished.
Specifications
The Samsung Galaxy A40 is a compact device that measures 144.3 x 69.0 x 7.9mm, making it the shortest and narrowest of the A series at launch.
Its small size comes with a benefit - it's also very light, weighing in at 140g, which is actually lighter than its successor, the Galaxy A50.
The A40 has a 3,100mAh battery, which is paired with 15W fast charging capabilities, so you can quickly top up your device when you need to.
You'll also get a 1.8GHz octa-core chipset and 4GB of RAM, which is more than enough power to keep Android 9 ticking along without any issues.
Here are the key specs of the Samsung Galaxy A40:
- Dimension (HxWxD, mm): 144.3 x 69.0 x 7.9
- Weight (g): 140
- RAM: 4GB
- Battery: 3,100mAh
- Fast Charging: 15W
Cost and Availability
You can pick up a Samsung Galaxy A40 from just £99.95 for a standard model in good condition. This is a huge saving compared to the initial RRP of £220.
The price of a refurbished Samsung Galaxy A40 will depend on its overall cosmetic condition and age, with devices in pristine condition available from £129.95.
Our refurbished Samsung A40s will be thoroughly tested, battery drain tested, cleaned and polished, and come with a 12 month warranty and no hassle 14 day returns.
Cost

You can pick up a Samsung Galaxy A40 for as low as £99.95 for a standard model in good condition.
The price of a refurbished Samsung Galaxy A40 will depend on its overall cosmetic condition and age, with a pristine condition model costing £129.95.
This is a huge saving compared to the initial RRP of £220, and the advanced features of the A40 make it a great value for the price.
Devices with slightly more cosmetic wear will be available at lower prices, but all refurbished Samsung A40s will be thoroughly tested and restored to at least a cosmetically fair condition.
Refurbished Samsung devices are available in fair, good, excellent, or pristine condition, each with a different price bracket.
The refurbishment process includes data wiping, thorough testing, battery drain testing, cleaning, and polishing to ensure a high-quality device.
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Where to Buy
If you're looking to buy a Samsung Galaxy A40, you have options, but it's essential to choose a trusted provider to ensure you get a fully functioning device.

At WeBuyTek, customers can rest assured that they use a Samsung refurbishment process that is extensive and meticulous. This process ensures that refurbished devices are thoroughly inspected and meet the latest technology standards.
Refurbished devices are a great alternative to brand new ones, offering a slightly cheaper option without compromising on quality. Refurbished smartphones follow a very comprehensive quality check process, so you can trust that you're getting a reliable device.
To avoid buying a used device that may not have been properly checked, stick to trusted providers like WeBuyTek. All products come with a 12 month warranty and no hassle 14 day returns, giving you peace of mind.
A refurbished device will have gone through a rigorous refurbishment process that assesses the condition of all areas within the device, including aesthetic and performance criteria.
Pros and Cons
The Samsung Galaxy A40 has its pros and cons. One of the major advantages is its small size and weight, making it extremely comfortable to use with one hand and easy to fit in a pocket.
Another plus is the phone's ability to support dual SIM and a microSD card, which is a feature that some other phones don't have.
One of the drawbacks is the battery life, which drains faster than expected due to a battery capacity of 2940mAh, not the advertised 3100mAh.
The assembly quality of the phone has also been reported to be odd, with some users experiencing a rattling or shaking sound when holding the phone.
Here's a summary of the pros and cons:
- Small size and weight
- Dual SIM and microSD card support
- Faster battery draining due to 2940mAh battery
- Odd assembly quality
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