Samsung Galaxy A40 Review: Simple and Compact

Plenty of Samsung mid-rangers out for grabs. The A-Series is proving to be a really fantastic choice for those looking for a decent mid-range phone that doesn’t cost much.

Among the A-Series is the A40. It is more like the S10E when you compare it to other phones in the A-Series. Due to its compact form, you may find it really tiny (if you have big hands) or okay to hold if you have tiny hands.

Personally, I don’t feel good with tiny phones, screen size matters a lot. But that’s just my preference. If you are into small phones, that’s totally okay.

We had a look at the A50 recently, the only major problem on that phone was the fingerprint scanner, it is inaccurate and quite slow. The A40 covers for that with its physical fingerprint scanner.

This is Shaibu and today, I will be giving you a review of the Samsung Galaxy A40.

samsung galaxy a 40 4

This review is based on research. I don’t own the product. Everything you will be reading here comes from so many sources I have looked at.

I’d like to thank Root Nation for the photos you’ll be seeing in this review, you can check them out for all the latest tech news and gadget reviews. With that being said, let’s get to it.

Key Features

  • Android 9.0 (Pie), OneUI
  • 5.9-inch 1080 x 2340 Super AMOLED capacitive touchscreen
  • Octa-core (2×1.77 GHz Cortex-A73 & 6×1.59 GHz Cortex-A53) CPU
  • Mali-G71 MP2 GPU
  • 4GB RAM
  • 64GB Internal Storage
  • 25MP Front Camera
  • 16MP / 5MP Rear Cameras
  • 3100mAh non-removable battery
  • Dual Nano SIM


Yeah, it’s a pretty small phone when you look at it, the good thing about that is, in today’s world, phones are just getting larger, most of the time, you will need two hands to handle most of them.

But with the A40, I strongly believe one hand should be enough to navigate this phone without any problem, unless you have really small hands.

The back of the phone also has that build you get on the A50, it’s made out of plastic. It sorts of looks like Glass but it actually is Plastic, Samsung is calling this design “Glastic”.

The A40 comes in colors such as Black, Blue, Coral and White. They are all really nice, but the A40 also has that Rainbow-like color you get on the A50 when you look at the phone from different angles. Sometimes it gets hard to tell what the primary color actually is.

samsung galaxy a 40 3

Turning over to the front, you get a Gorilla Glass 3 protected screen here. This keeps your phone safe from scratches. It also protects your phone’s screen from breaking after a short drop.

While the phone already comes protected, it’s recommended to give it a little more protection by getting a case for it. Due to its build, it is going to be easy for the phone to slide off surfaces. A case should keep it stable.

The simplicity of the A40 is quite nice when it comes to the design. You’ll find the volume and power buttons on the right side of the phone. On the left side are the SIM and microSD card slots.

At the bottom of the phone, you will find the 3.5mm Headphone Jack, a USB Type-C port and a speaker.

samsung galaxy a 40

The cameras can be found on the front and the back. The selfie camera sits in the waterdrop notch on the screen while a dual camera setup is placed at the back of the phone. It also has an LED flash.

The fingerprint scanner can be seen on the back, on the A40. You don’t get an under display fingerprint scanner but a physical one.

No troubles here, because the fingerprint scanner is quite fast and accurate, compared to the one on the A50.

Don’t think about taking this phone for a swim either, it is not a water resistant device.


Fitting an AMOLED panel on this phone truly is a plus. What you’re getting here on the A40 is a 5.9-inch screen, not bad for a phone its size right?

And the screen gets all those deep blacks AMOLED panels have. With its 1080 x 2340-pixel Resolution, content comes out really sharp and colors are mostly accurate.

Although the A40 has an AMOLED panel, there is no “Always on Display” feature here. You’ll just have to wake the device up if you ever need to check the time or notifications. The plus here is that it is good for saving battery.

The screen has a Waterdrop Notch, where the selfie camera stays. Although the Notch is not that intrusive, you can still hide it with a black bar.

Outdoor usability is quite impressive, the phone gets really bright under direct sunlight. You won’t have any problems with using the phone outdoors.

Overall, the A40 has a really nice flat screen, the bezels here aren’t thick. It’s a really good screen for all your movie watching. Not too sure about it being a great screen for gaming, but it gets the job done.


Unlike the A50 that has 3 cameras, on the A40, you’re getting 2 cameras. But they are really good ones (in terms of diversity). The A40 comes with a 16 Megapixel Main camera and a 5 Megapixel Ultrawide shooter.

I believe this is a really good combination for a phone like this because you can have different perspectives on both cameras.

samsung galaxy a40

With the main camera, if you give it enough light, you will be able to take really detailed and accurate photos. Colors are also very vibrant and lively.

You get a Scene Optimizer feature on this phone, from what I’ve found out, sometimes it works and sometimes, you won’t even notice if your photos come out optimized, it’s just something you may have to play around with.

You can take Portrait Shots with the A40. Only the main camera is used here, this is where a depth sensor would have been really useful.

Well, all the background blurring on the A40 is done through software. You won’t get over the top results if you have used some phones with a depth sensor for these kind of photos.

However, if you’re new to Portrait shots, well, you will find the results satisfying.

Moving over to the Ultrawide camera, it does its best to give you a wider field of view, but detail and accuracy isn’t going to blow you away.

The good part here is you don’t get barrel distortions here, so don’t expect to see buildings bending in corners of your pictures.

For shooting videos, the main camera will give you a better result compared to the ultrawide camera. You can shoot up to 1080p videos with Image Stabilization. It’s worth knowing that you can shoot 4K videos as well if you use a different camera app.

The results from the main camera a great, videos come out sharp and detailed. There are accurate colors and nice balance in terms of light.

Using the ultrawide lens, videos lose a lot of detail, but you still get that wider field of view.

On the front of the phone is a 25 Megapixel Selfie camera, by default, the phone takes 12 Megapixel shots, but you can use the whole 25 Megapixels to take selfies if you want.

To do that, you’ll have to change the aspect ratio to 4:3H. Pictures taken here are quite good, there’s a lot of detail and accurate colors.

samsung galaxy a 40 2

You can also use this camera for your Face Recognition features, but note that it’s not going to be very secure since the selfie camera alone is being used. For the best security you can get, it’s best to stick to the fingerprint scanner or use a pattern.

To sum it up, the A40 has a really good camera combination, considering that this is a midrange phone, the cameras are really impressive.

Performance and Features

This is not the best phone for heavy gamers, it comes with Samsung’s Exynos 7885 chipset. It has an Octa-core (2×1.77 GHz Cortex-A73 & 6×1.59 GHz Cortex-A53) CPU and a Mali-G71 MP2 GPU.

The phone is fast enough to handle your day to day tasks but on the long run, it’s going to be really slow.

And for gamers out there, you will be able to play most games on this phone, but heavy games are going to lag. So if you’re a heavy gamer, you can go for something that packs more punch. I’ve talked about phones like the Realme 3 and the Pocophone F1, those are some really good midrange phones that can do a lot of gaming.

samsung galaxy a40 1

If Samsung is the only product you want to use, then maybe check out the review I wrote for the A50. The phone is good enough to handle all you gaming needs.

The User Interface on the A40 is Samsung One UI, based on Android 9.0 (Pie). It is quite clean and comes with a lot of Samsung apps.

You get Samsung Gesture Navigation here. When activated, swiping up from the bottom-right will take you “Back”, swiping up from the bottom-center will take you “Home” and swiping up from the bottom-left will show you your “Recent Apps.”

With One UI, you will find it easy to use the A40. A lot of customization can be done, but if you only care about the basics, the phone will treat you just fine.

RAM and Internal Storage

The A40 comes with 4GB of RAM, this is like the minimum requirement for phones these days. That being said, you’ll have to realize that 4GB of RAM isn’t going to be good enough after a while. If you plan to use this phone for a very long time, my advice for you is look elsewhere.

If you’re the type that changes phones all the time, well good, you can try this phone out and see how you like it for as long as you have it.

With 4GB of RAM, sure the phone can handle multitasking, but not a lot. If you open too many apps, be rest assured the phone is either going to slow down a bit or terminate some apps just to so it doesn’t slow down.

The RAM on the A40 is not mind blowing but at the same time, it is currently not a bad one for a midrange phone.

For storage, you get 64GB of internal storage space. That may not be a whole lot, but considering that this is a midrange device, it is quite good.

To make that even better, you can increase your storage space with a microSD card of up to 1 Terabyte. The best part is you don’t even have to give up any of your SIM slots to do that.

Overall, although you don’t get the best RAM or the biggest room to keep all your files, it is worth mentioning that 4GB of RAM is currently good enough to handle multitasking and expanding storage is going to help keep that 64GB a bit free.

You may have to move a lot of files around, though.


This may be one of the reasons why the A40 isn’t going to be the best phone out there, it comes with a 3100mAh battery. Not a great battery for heavy users as they will be finding themselves charging the phone most of the time.

Really light users should be able to use the phone for a while without needing to charge.

The phone does support fast charging, though. With its 15W charger, expect to be back in action in no time.

The A40 doesn’t necessarily have a bad battery, but if you push the phone a lot, you won’t enjoy using it. I think it’s now safe to say that this phone isn’t built for really heavy phone users, from its overall design (although some really heavy phone users like small phones), to its chipset, RAM and now, battery.

Simple users that just need a phone that can do what it’s supposed to do like make phone calls, take pictures, text people from time to time won’t have any issues with the battery on this phone.


For internet, you get 4G, 3G, 2G and WiFi.

You also get an FM Radio, Bluetooth V5.0, NFC, GPS, USB 3.1 Type-C, etc.


This phone costs around $300.

Click here to get current Amazon Price.

*Please note that prices vary from time to time.


Although the A40 is a really nice phone, I wouldn’t recommend it to heavy users. So, if you’re the type that is always on their phone want a phone that won’t slow you down even after a long time of using it, don’t invest in this one.

On the other hand, if you’re a really busy person that doesn’t really have time for their phone, go ahead, this phone is a great choice.

I don’t really see it getting frustrating for you.

samsung galaxy a40 2

Okay guys, that’s it for now, make sure you share, comment and like if you enjoyed the review.

Do follow me on Facebook, Instagram and Twitter for more updates.

Until next time, this is Shaibu saying thank you for stopping by and I’ll see you on the next phone. Stay awesome.

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