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Dell Venue 8 7840 review: a super-slim and powerful tablet

dell venue 8 front screen
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The Venue 8 7840 Dell is an extremely slim tablet, with an elegant aluminum robe chassis and eye-catching design. Coming in at under 400 Euros, it's a great price at first glance, but does the tablet hold up once we start digging under its gleaming surface? Read our Dell Venue 8 7840 review to find out.

Dell Venue 8 7840


  • Beautiful design
  • Good power
  • Bright, sharp display


  • Added camera functions are pointless
  • Runs Android 4.4.4 KitKat
Dell Venue 8 7840
Dell Venue 8 7840
Dell Venue 8 7840: All deals

Dell Venue 8 7840 release date and price

The Dell Venue 8 7840 release date fell in February 2015. The Venue 8 7840 price is 399 USD from in the US, and 320 GBP on the Dell website in the UK.

Dell Venue 8 7840 design and build quality

The Dell Venue 8 7840 has a unibody aluminum chassis, with a svelte thickness of just 6 mm. The front of the tablet is almost all display, as the side-bezels on the device are virtually non-existent. Below the screen are mounted stereo speakers and the front camera. On the back, there are three cameras with Intel's Real Sense technology, which allow depth effects (similar to the bokeh effects on the HTC One M8) and image calculations.

dell venue 8 back camera
The three cameras on the back of the tablet use Intel's Real Sense technology. / © ANDROIDPIT

The Dell Venue 8 7840 looks great, but the narrow display bezel come at the price of making the tablet quite awkward to hold. Holding the tablet by the bottom, my hands would cover the speaker and front camera. If I held it by the sides, my palm lightly rested on the screen, carrying out unwanted touch actions because the Dell Venue 8 7840 has no palm detection, making each bit of unwanted contact with the screen cause am equally unwanted reaction.

dell venue 8 side
With a thickness of just 6mm, the Venue 8 is exceptionally thin. / © ANDROIDPIT

On the lower right side of the case is a microSD port if you have the WiFi-only model, and both SIM and microSD slots in the LTE model.

dell venue 8 sd slot
The microSD slot. / © ANDROIDPIT

Despite the ergonomic issues, this tablet feels sturdy and of very high quality, with no wobbly power buttons or volume rockers.

Dell Venue 8 7840 display

The OLED Venue 8 7840 display is 8.4 inches large, with a 2,560 x 1,600 pixel resolution, adding up to a pixel density of 361 ppi. You couldn't pick out pixels with a magnifying glass on this screen. The colors are nice and natural, and viewing angles are stable and undistorted even at the most extreme angles.

dell venue 8 side volume

The Venue 8 display is jam-packed with pixels, with great viewing angles. / © ANDROIDPIT

Whether I was looking at photos, surfing the Internet, video viewing or playing a game, it was an eye-soothing experience to absorb any media on the 7840.

Dell Venue 8 7840 special features

The back of the Dell Venue 8 features a trio of cameras arranged in a triangle. The main camera, which is at the bottom-center of the phone, has an 8MP resolution. Higher up, to the left and right, are two additional stereoscopic cameras. These are for depth calculation, and mark the first time that Intel's Real Sense Technology has been used in tablets. Real Sense provides every picture with depth information, which can then be used to change to replace the color of the background, or calculate the size of objects and people in images. To get the most out of this feature, you should take photos in a well lit area, and stand between one and five meters away from your subject.

dell venue 8 back camera 2
Close-up of the three rear cameras on the Venue 8. / © ANDROIDPIT

Our tests of this feature got mixed results. A coffee cup, for example, was measured almost to the centimeter, a bottle of apple juice had apparently doubled in size, while our in-house giant Caspar, who is 6'8, had shrunk to a mere ten centimeters. These results make the feature an amusing little gimmick in our eyes, rather than a reliable measurement tool.

dell venue 8 7840 apfelschorle
This bottle is over a meter tall, according to the Venue 8 7840. / © ANDROIDPIT

The Venue 8's default Photo Gallery app offers a decent range of depth effects - for example, turning the background black-and-white while keeping foreground objects colored. Unfortunately, these photos proved to not be very reliable in our tests.

Dell Venue 8 7840 software

The Dell Venue 8 7480 software is powered by Android 4.4.4 KitKat, with the coveted Lollipop update expected to roll out soon. Dell has left KitKat largely untouched, which will be a big plus for stock Android fans.

That's not to say that Dell hasn't squeezed some of its own features onto the Venue 8, such as the already-mentioned Dell Gallery. MaxxAudio is onboard, an app used for sound enhancement and features such as bass boost or equalizer offers. Sadly, the app's good intentions are undermined by its dated interface and a horrible low-resolution icon that will blight your homescreen. Get past the ugly exterior though, and MaxxAudio is actually a pretty hand app (see the Audio section).

dell venue 8 7840 maxxaudio icon
The MaxxAudio logo looks dreadfully low-res, but don't let that put you off using the handy feature. / © ANDROIDPIT

Dell Venue 8 7840 performance

The Dell Venue 8 7480 has a quad-core Intel Atom Z3580 processor with a clock speed of 2.3 GHz, supported by 2GB of RAM. The performance is very good in most cases, with no lag or dropouts. Demanding games like Dead Trigger 2 and Real Racing 2 run absolutely smoothly. Occasionally when using the Dell Gallery's editing features we'd experience a litte bit of slowdown, but that was the only time that I noticed this, and I suspect it may be more to do with the software rather than the hardware.

Here are the result of the AnTuTu benchmark in which the Dell Venue 8 7840 specs scored a solid 44,755:

dell venue 8 7840 antutu benchmark
The Venue 8 clocks a similar performance to the OnePlus One in the AnTuTu benchmarks. / © ANDROIDPIT

Dell Venue 8 7840 audio

The stereo front speakers sound muffled and tinny without MaxxAudio and lack clarity, but that all changed when I switched the mysterious feature on. MaxxAudio does nothing more than tweaking the sound for optimized profiles such as music, games and movies, but does it in a way that transforms the speakers into actually sounding really rather good.

dell venue 8 speaker
The stereo front-facing speakers at the bottom of the Venue 8. / © ANDROIDPIT

Thanks to MaxxAudio's constant presence in the notification bar, you can quickly switch between the different profiles, manually tweak the equalizer if you fancy yourself a bit of an audio wizzkid.

Dell Venue 8 7840 camera

The Dell Venue 8's two cameras provided realistic color reproduction with relatively little noise in dark areas. However, images are too dark and rely too much on being illuminated during post-processing, which gives them an unnatural appearance. For a tablet, this camera is OK, but we don't recommend it if you're a photo fanatic - a shame given the camera's interesting added features.

dell venue 8 7840 camera sample 01
Colors in photos are realistic. / © ANDROIDPIT
dell venue 8 7840 camera sample 04
And noise is minimal in both dark and light conditions. / © ANDROIDPIT

Dell Venue 8 7840 battery

With a capacity of 5,900 mAh, the Venue 8 7840 battery is a biggie, and this is reflected when you use it. If you watch a one-and-a-half-hour film with the screen's brightness at 50 percent, you lose only about 15 percent battery. I got a good 10 hours of battery life out of using the Venue 8 7840 pretty heavily, which is comparable to other tablets.

Dell Venue 8 7840 technical specifications



Final verdict

The Dell Venue 8 7840 is a very solid tablet that is a winner in most departments except for the camera. I can turn a blind eye to this shortcoming however, because I don't see tablets as practical photography devices - yet. The powerful specs and the elegant aluminum housing in combination and vivid display easily make up for the meagre camera. Now, we're eagerly awaiting to hear more news on the eagerly-awaited Lollipop update, because Android 4.4 KitKat no longer feels like a sufficient OS in a modern high-end device.

Do you own this Dell Android tablet? Do you agree with our Venue 8 7840 review? Tell us all in the comments.

  Editor's choice Best smart home control center Best price-performance ratio Best sound Best sound supplement Best display
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Robert Zak

Robert Zak
UK Editor

A tech aficionado since he first picked up a NES controller, Robert has written about technology, videogames, and film across a range of sites and magazines, including Den of Geek, Gamasutra, and Computeractive. At AndroidPIT, he'll be bringing you the latest Android news and reviews from the front line in the UK.

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  • 1
    Prahlad pendem Dec 28, 2015 Link to comment

    I am from hyderabad india.and since 20 days i am using this are the truths about this tab.this tabs got everything beautiful stuff you could put inside a light weight thin powerful ergonomic stylish modern super bright stunning performer sexy bitchy bloody cute idiotic smashing dangerously pretty angel virgin lover could think off. I am really impressed by its looks and screen quality. And now its on lollipop it really popped me.its a crazy gadget with unbeatable looks and performance. The big thing the bloody battery lasts for 15 long lasting hours on wifi surfing and 12 hour while watching videos.this is true.the mediacore answer would be 22 hours surfing and 16 hours video you know the truth still it lasts a fabulous time.i really love it.please without thinking twice you could buy this in india we are tired of nokia sony samsung etc etc.its the time of dell now it seems.

  • 4
    dharr18 May 9, 2015 Link to comment

    Ironic this review comes out the day after the 7840 received the lollipop update in the US.

    I am impressed that lollipop runs better on this tablet than the nexus devices I have tried it on.

    Please revisit your camera tests after you receive the lollipop update and update the camera app. There seems to have been a few tweaks to the camera.

    To me, this is the best android tablet on the market. With the ability to move apps to sd, this is a huge plus for this tablet.

    david dicusGeorge