Samsung Galaxy A8 (2018) Review


Update: You can now read our Galaxy A80 review!

The Galaxy A8 2018 is Samsung's newest upper mid-range phone, but with its similar glass-and-metal design and styling, we'll forgive you if you mistake it for the flagship Galaxy S8.

The list of similarities includes a tall, edge-to-edge Super AMOLED Infinity Display, a 3,000 mAh battery, and the familiar Samsung Experience interface. But on the inside, the A8 is a mid-ranger: with a different processor and a different camera. Its performance isn't the same either.

I have spent the past few days with a Galaxy A8 2018 in one pocket and a Galaxy S8 in the other to find out how good of a phone the A8 really is and how it compares to the flagship S8. Read on to learn more.

In the box:

  • Samsung Galaxy A8 2018 phone
  • User manual
  • Fast Adaptive Charge wall charger
  • USB-C to standard USB cable
  • In-ear headphones (white, with 3.5mm jack)
  • SIM card ejector tool


Premium materials and water-proofing are nice to have, but the phone does not look as futuristic and trend-setting as the flagship S8.

Even though the Galaxy A8 2018 looks similar to the Galaxy S8 from afar, the differences between them are easy to spot when you actually hold the two. The first thing you notice about the A8 is that it has much bigger bezels, ruining the impression of a true edge-to-edge, futuristic design. They don't look nearly as good as on the S8. The A8 also feels much bigger despite the fact that it is just a hair wider and very slightly thicker. What is not as slight is the difference in weight. The Galaxy A8 2018 tips the scales at 6.07 ounces (172 g), while the S8 is much lighter at 5.36 oz (152 g), and you can feel this difference.

In terms of materials, the A8 is made of glass and metal. The glass is Corning’s Gorilla Glass 5, the latest and most durable in the series, while the metal is 7000-series aluminum with a matte finish, unlike that on the glossy S8. Is glass a practical choice for a phone back? On one hand, it looks great when clean, and on the other, it is rarely clean as it picks up fingerprints so easily, so… it’s up to you to decide. Fortunately, they are not that noticeable on the gold model that we have. One thing to keep in mind with glass is that it does shatter, and we do strongly recommend carrying the phone in a case. One more thing we noticed: this glass back is not as slippery as many aluminum phones, so you have a better grip on your phone.

The buttons on the sides are made of metal and feel clicky and nice to press, while the loudspeaker is on the right side (just like on the Galaxy A series from last year). On the bottom, you have a USB-C port for charging and a headphone jack.

The A8 also has an IP68 water resistance rating, meaning that it will survive a short dive in water and those summer days by the pool. It’s officially rated to withstand up to 30 minutes of immersion in fresh water as deep as 5 feet.

Samsung Galaxy A8 (2018)

5.87 x 2.78 x 0.33 inches

149.2 x 70.6 x 8.4 mm


6.07 oz (172 g)

Samsung Galaxy S8

5.86 x 2.68 x 0.31 inches

148.9 x 68.1 x 8.0 mm


5.47 oz (155 g)

Samsung Galaxy A5 (2017)

5.75 x 2.81 x 0.31 inches

146.1 x 71.4 x 7.9 mm


5.61 oz (159 g)

OnePlus 5T

6.15 x 2.95 x 0.29 inches

156.1 x 75 x 7.3 mm


5.71 oz (162 g)

Samsung Galaxy A8 (2018)

5.87 x 2.78 x 0.33 inches

149.2 x 70.6 x 8.4 mm


6.07 oz (172 g)

Samsung Galaxy S8

5.86 x 2.68 x 0.31 inches

148.9 x 68.1 x 8.0 mm


5.47 oz (155 g)

Samsung Galaxy A5 (2017)

5.75 x 2.81 x 0.31 inches

146.1 x 71.4 x 7.9 mm


5.61 oz (159 g)

OnePlus 5T

6.15 x 2.95 x 0.29 inches

156.1 x 75 x 7.3 mm


5.71 oz (162 g)

Compare these and other phones using our Size Comparison tool.

Fingerprint scanner position

The big change on the back is the fingerprint reader placement. The weirdly positioned fingerprint scanner on the Galaxy S8 – way out of reach at the top and next to the rear camera – was one thing that everyone criticized Samsung for. Thankfully, the company has listened and it has moved the fingerprint reader on the A8 below the camera. The scanner is still a rounded rectangle, but it is now horizontal and much easier to reach. It is still not an ideal placement as it is too close to the camera – you can accidentally touch the camera lens and smudge it when you unlock your phone – but it is much, much better than on the S8.

It is not a fast fingerprint scanner, though. The fingerprint reader on the Galaxy S8 was a bit slow to react, and this one, too, is not as fast as on other phones like the Google Pixel 5 or OnePlus 5/5T.


A bright and vivid display, but the bigger bezels ruin a lot of its appeal.

The A8 features a 5.6-inch Super AMOLED display that looks great with its lush colors and deep blacks. Samsung calls this an “Infinity Display”, the marketing name for its taller and narrower displays with an 18.5:9 aspect ratio and edge-to-edge, almost bezel-less designs. This particular screen, however, is not curved like the one on the S8, and with a flat design, the bezels actually look much, much bigger than on the S8. It definitely ruins a lot of that futuristic look and feel.

In terms of specifications and performance, this display is very good. It reaches a peak brightness level on par with the Galaxy S8, so you can easily see it outdoors, under the bright sunlight, and it drops to the lowest level at night meaning that it is easier on the eyes for nightbirds.

Color representation is not quite as great as on the S8: you have slightly colder whites; colors overall are not perfectly balanced, but not too far off either. As with all Samsung AMOLED displays, you have the choice of different color modes in Settings > Display. The default Adaptive mode produces lively, lush, oversaturated colors, but if you don’t like this look you can tone it down to other modes. The basic mode is the one that gets closest to the sRGB standard that you might want to use if you want standard-accurate colors.

You also have the Always-on Display feature on the A8. It takes some additional battery power, so we recommend you set it up carefully. It would be a good idea to let it automatically turn itself off at night. You can do this in Settings easily.

Interface and Functionality

Samsung Experience feels smoother than before.

Every year with Samsung phones, we look at the Samsung Experience user interface and say the same thing: it looks good, but does not perform good enough! The TouchWiz curse carries on generation after generation, and Samsung phones always seem to work with a tiny bit of stutter: not so much as to ruin the experience, but definitely noticeable when you compare the experience to a Google Pixel or a OnePlus.

Well, here is one great thing: with Samsung Experience 8.5 on the Galaxy A8 2018, things have gotten better! Okay, to be perfectly honest, we saw a lot of improvement on the Galaxy Note 8, and the A8 2018 also seems better optimized in terms of software. In the daily grind, we noticed that it actually did many things faster than the Galaxy S8, which has a more powerful processor. We’re still not at Pixel level of smoothness, but we have an important improvement.

Apart from that, the Galaxy A8 2018 runs on Android 7 Nougat at its core, which is a shame for a phone selling in early 2018. An update to Android 8 Oreo, however, is in the plans and it should arrive in the first quarter of the year. Let’s see if Samsung sticks to this schedule.

For all else, Samsung Experience is a familiar user interface. The unmistakable colorful squircle icons, the swipe-up app drawer, the well segmented settings menu, the themes selection and customization options are all here.

Power user features like split-screen multitasking, KNOX security and Secure Folder are also present.

We like the universal search in Samsung’s interface that pulls detailed results from all over the system. It is actually very useful.

First-party apps have a polish to them that is among the best from a company outside of Google. The weather app is particularly nice, while others like the browser and mail apps are good enough, but still not on par with the ease of operation and power of syncing with the Google cloud. Samsung has done some important work on its own cloud solution, so you can easily sync photos in the gallery to the Samsung cloud and get them on any Samsung device you own, which is a nice, Google-like bonus feature.

Processor, Performance and Memory

A mid-range chip and only 32GB of on-board storage.

The Galaxy A8 2018 is powered by the Samsung Exynos 7885 chip. This is an upper mid-range chip that is a far cry from the Snapdragon 835 in terms of performance, but it’s also better than your typical mid-range chip like the Snapdragon 625. The Exynos 7885 is built on the modern 14nm LPP FinFET manufacturing process, which ensures it does not consume too much power. It consists of 2x powerful Cortex A73 CPU cores running at up to 2.2GHz and 6x efficient Cortex A53 cores running at up to 1.6GHz.

We have already mentioned the good performance you get with everyday tasks, but this chip does not break any benchmarking records. This is not a phone for die-hard gamers and those who will push the limits of a phone performance.

The A8 2018 we have ships with 4GB of RAM and 32GB of storage (there will be other models in different markets), and you have a microSD card slot to expand the on-board space. Just 32 gigs of storage on this phone, however, seem very little as many more affordable devices ship with 64GB. We wish Samsung did not cheap out here, especially when its software already takes up over 10GB out of the box.

AnTuTuHigher is better
Samsung Galaxy A8(2018)76303
Samsung Galaxy S8166646.66
Samsung Galaxy A5(2017)60678
OnePlus 5T180651
JetStreamHigher is better
Samsung Galaxy A8(2018)56.335
Samsung Galaxy S855.503
Samsung Galaxy A5(2017)31.472
OnePlus 5T66.048
GFXBench Car Chase on-screenHigher is better
Samsung Galaxy A8(2018)5.53
OnePlus 5T23
GFXBench Manhattan 3.1 on-screenHigher is better
Samsung Galaxy A8(2018)9.3
Samsung Galaxy S841
Samsung Galaxy A5(2017)9
OnePlus 5T37
Basemark OS IIHigher is better
Samsung Galaxy A8(2018)2014.66
Samsung Galaxy S83201.66
Samsung Galaxy A5(2017)1432
OnePlus 5T3749
Geekbench 4 single-coreHigher is better
Samsung Galaxy A8(2018)1517.66
Samsung Galaxy S82008.33
Samsung Galaxy A5(2017)766
OnePlus 5T1965
Geekbench 4 multi-coreHigher is better
Samsung Galaxy A8(2018)4408.66
Samsung Galaxy S86575
Samsung Galaxy A5(2017)3951
OnePlus 5T6638

Internet and Connectivity

Disclaimer: The Galaxy A8 2018 is not officially sold in the United States and may not be compatible fully with US 4G LTE bands.

The Galaxy A8 2018 has 4G LTE connectivity with support for a lot of bands, so you can travel most of the world while getting good LTE connection. Here is the full list of supported bands:

  • FDD LTE Bands: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 66
  • TDD LTE Bands: 38, 40, 41

In simple terms, these bands will cover practically all European carriers and many international ones. Check with your carrier to see if the A8 is fully LTE compatible.

The A8 2018 is a DUOS phone and it features true Dual SIM card support, meaning that you can use two SIM cards AND a microSD card at the same time (instead of the popular hybrid slot that you get these days).

Other connectivity options here include GPS, dual-channel Wi-Fi and Bluetooth 5.0, as well as support for NFC and Samsung Pay.


A far cry from the fantastic Galaxy S8 camera.

The Galaxy A8 2018 looks similar to the Galaxy S8 and costs just slightly less, but does it have the same fantastic camera as the flagship phone?

The short answer is “no, it doesn’t”. But we first have to start with the specs: the A8 features a 16-megapixel rear camera (no dual cameras on the back) with optical stabilization (OIS) and an f/1.7 lens, while on the front, there is a dual camera system consisting of a 16-megapixel and 8-megapixel that can blur the background on selfies for a cool, DSLR-like portrait effect.

The camera app is the familiar Samsung one. You can quickly launch it by double clicking the home button. You can swipe up and down on the viewfinder to switch between the front and rear cameras, while swiping left brings up filters and swiping right reveals shooting modes (you have a Pro mode with manual settings, Panorama, Hyperlapse, Night and Food modes, and you can download more). You can easily zoom in and out by dragging the white shutter button up and down, which is neat. The red button below the shutter instantly starts recording video, but the video is slightly cropped and there is no way to preview the composition in video.

Taking a picLower is betterTaking an HDR pic(sec)Lower is betterCamSpeed scoreHigher is betterCamSpeed score with flashHigher is better
Samsung Galaxy A8(2018)1.8
Samsung Galaxy S81.2
Samsung Galaxy A5(2017)1.8
No data
No data
OnePlus 5T1.23
No data

Image Quality

How do photos actually turn out? When you have plenty of light, the difference between the new A8 2018 and the Galaxy S8 is not that huge, but it is still noticeable.

It boils down to the dynamic range and overall brightness and balance of colors in photos. The A8 slightly overexposes the highlights, while the S8 consistently shoots slightly underexposed images. There is no one right approach, but we did notice that the A8 cannot capture the full range of a dynamic scene and burns the highlights, while the S8 retains the dynamics better:

If we look closer into details, we notice quite a bit of artificial oversharpening halos on the A8, while the Galaxy S8 is sharp, but without such glaring artifacts. The A8 also shoots slightly colder tones, with whites that appear pure, while the S8 goes for slightly warmer color and a bit yellow-to-greenish whites. Overall, as we've said, the two do not differ hugely in daylight.

Take a look at some photos between the two to see it all for yourselves:

Night-time photos

Unfortunately, the Galaxy A8 2018 cannot quite match up the fantastic image quality you get with the S8 at night. There's a big difference in image quality between the two. Photos from the A8 turn out blurry, often overexposed and lacking detail, while the S8 preserves detail and a balanced image even at night.

Selfies with... Portrait Mode!

When it comes to selfies, though, the Galaxy A8 2018 really shines. The "Live Focus" blurred background effect is awesome and makes selfies look epic and indeed memorable, portrait-like. You can adjust the level of background blur, detail is plentiful, and overall, this is definitely one of the better front cameras out there.


The A8 can only record 1080p video at 30 frames per second, while most rivals in the same price range can shoot 4K video with a lot more detail to it. This is definitely one of the weakest sides of its camera. 1080p video does not look bad, though, as it supports optical stabilization.

Video Thumbnail

Sound quality

You have a single loudspeaker on the A8 and it is positioned on the side. We saw this same position for a loudspeaker on the Galaxy A series last year, and while it is strange, it is also a place that does not get easily muffled.

The loudspeaker quality is just about average: neither too good, nor too bad. It lacks the depth of some amazing performers like the iPhone 8/X series, but it is also loud enough not to be disappointing.

Thankfully, there is a headphone jack on board as well, so you do not need to spend more than $100 on wireless headphones and you can just enjoy the sound with your existing headphones. The phone also supports Bluetooth 5.0, but lacks the AptX HD codec support that some higher-end recent phones have for high-resolution audio transmission via Bluetooth.

Headphones output power(Volts)Higher is better
Samsung Galaxy A8(2018)0.53
Samsung Galaxy S80.75
Samsung Galaxy A5(2017)0.53
OnePlus 5T0.47
Loudspeaker loudness(dB)Higher is better
Samsung Galaxy A8(2018)78
Samsung Galaxy S878
Samsung Galaxy A5(2017)75
OnePlus 5T77

Call Quality

Call quality is good on the Galaxy A8 2018. It’s easy to recognize the natural tonality of your caller’s voice in the earpiece and sound is of sufficient quality and loud enough. We have no complaints about microphone output on the other end of the line either.

Battery life

It will last you through a day, even a longer one.

The A8 2018 features a 3,000 mAh battery: the same size as on the Galaxy S8 and about average for a device this size.

We did not have any problems getting through a full day, even a longer one, but this is definitely not a phone that will get you through 2 days.

We ran our battery life test on the phone, and it scored 9 hours and 15 minutes: a result that beats the Galaxy S8 by about an hour and ranks as excellent in our charts. It’s not a record breaker, but still very good.

Another important aspect of the battery experience is charging times. Sometimes you need that extra battery boost during the day and you need it fast – during the lunch break, for instance. Good news is that the A8 features a fast charger in the box and it recharges fully in very little time.

Here is how fast it recharged using the charger included in the box:

  • 13% in 10 minutes
  • 38% in 30 minutes
  • 100% in 1 hour and 37 minutes

There is no support for wireless charging on the new A8.

Battery life(hours)Higher is better
Samsung Galaxy A8(2018)9h 15 min(Good)
Samsung Galaxy S88h 22 min(Average)
Samsung Galaxy A5(2017)11h 9 min(Excellent)
OnePlus 5T8h 51 min(Good)
Charging time(hours)Lower is better
Samsung Galaxy A8(2018)1h 37 min
Samsung Galaxy S81h 40 min
Samsung Galaxy A5(2017)1h 31 min
OnePlus 5T1h 33 min

Price and alternatives

The Samsung Galaxy A8 2018 is an upper mid-range with a price of around €500. In most markets, this is dangerously close to the €620 price of the Galaxy S8 flagship at the time of this writing.

*** Update March 2018: Just a couple of months after the launch, the price of the A8 2018 has dropped from €500 to the much more reasonable €375. At this cost, the new A8 is a much better value for the money. ***

For the price of the A8 2018, you have plenty of other options: the mainstream LG G6 and Huawei P10 are flagship devices with better specs and cameras than the A8, and cost the same. You also have phones like the HTC U11 – it costs just slightly more than the A8, but has a much better camera and smoother performance. The OnePlus 5T is another great option with a bigger display, beefier specs and better performance. Other, more affordable devices like the Honor 9 offer more features like 4K video recording.

Overall, it seems that the A8 2018 is a bit overpriced for what it is. Samsung has a history of quickly slashing prices of its mid-rangers, and we hope it cuts the price of this phone soon as well.


The Galaxy A8 is a phone selling at the same price as the OnePlus 5T, but it does not quite feel as well executed and it definitely feels overpriced.

While it technically has an “Infinity Display”, you can definitely see the bezels on the side and chins, and it does not quite have the futuristic, classy look of the S8. And while it has a cool dual front camera, the main camera is actually not great, especially at night, and it does not support 4K video recording. And then there is the performance: definitely improved in the daily grind, but technically you only get a mid-range chip, and heavy use will put its weight on the phone. And having just 32GB of storage when others ship with double the amount at a lower price is just shameful.

Yes, Samsung does have the Samsung Experience interface that has a lot of useful functions and visual polish, and the Super AMOLED screen on this phone has those coveted vivid colors, but in this fiercely competitive market, we are left thinking there are some better options lurking out there.

Update: You can now read our Galaxy A80 review!


  • Lush Super AMOLED screen
  • Smoother performance than S8 in daily use
  • True Dual SIM phone
  • Sturdy build quality
  • Good camera quality in daylight


  • Pricey for what it is
  • No Android Oreo on board
  • Rather poor video recording quality, no 4K
  • Not great for low-light photos
  • Only 32GB of on-board storage

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