Conclusion & End Remarks

The OnePlus 6 is a device that generally impressed me a lot. I was going into the review without any expectations or preconceptions as it was my first OnePlus device to more thoroughly review.

Design-wise, the OnePlus 6 marks a major change for the company as it employed a new industrial design. Most notably, this is visible in the back of the phone as the new glass cover marks a replacement for the previous metal chassis. The review unit which I’ve got had the new matte “Midnight black” variant which offers a sanded glass finish. I’ve actually really liked the finish as it feels very unique and is less of a fingerprint magnet than the usual glass back. Some people have noted that they didn’t like that it’s more slippery than the shiny glass  variants – I can’t really comment on that other than saying that I personally didn’t have an issue with it.

The front of the phone also attracted a lot of attention due to the fact that OnePlus adopted a display notch in the OP6. As I’ve stated in past reviews such as Huawei’s P20’ pieces, I’ve actually had no issue at all with the notch. In practical terms it actually does offer more screen real-estate by having the notification icons and status icons where there usually would be phone bezel. You can black out the “ears” via a software option if you wish to and this works very well with the AMOLED screen, with only the occasional screen reflection reminding you that there’s actually a notch there.

The display of the OnePlus 6 is very good and has accurate colour profiles if that’s a requirement for you. Viewing angles are excellent, as is usual for an OLED display. The only two drawbacks here is that OnePlus by default doesn’t enable the high-brightness mode of which the hardware is capable of, and this comes at a detriment of legibility in bright scenarios such as direct sunlight. Also the screen resolution, while for most people might be sufficient, is for me personally too stretched out over the large screen and I would have really preferred the phone to come with a 1440p panel.

Performance of the OnePlus 6 is its absolute shining point as not only does it offer the same outstanding system performance that I’ve described in our Mi MIX 2S review, naming that one of the fastest devices I’ve ever experienced, but actually the OP6 also manages to distinguish itself from other Snapdragon 845 devices by having vastly superior sustained 3D performance. This latter, while I’m not exactly certain on the facts, is something that I want to attribute to a seemingly better thermal dissipation design on the OnePlus 6.

The camera on the OnePlus 6 also impressed me a lot in daylight shots. It was among one of the best cameras in terms of exposure, colour reproduction and resulting natural high dynamic range images. The 16MP shooter also was able to very much obtain some of the most detailed shots among current generation devices, although it was visible that OnePlus pushed quite hard in terms of the optics and the f/1.7 aperture, as we can discern some defects in the lens.

In night-time the OP6 did also well and is more than adequate as a shooter, although it’s hitting hardware boundaries as it just doesn’t have the same light capture abilities of other flagships.

The second sensor on the OP6 is one of very limited value as its only use-case is the depth perception within the portrait mode. Given that the bokeh blur is actually a computational effect applied in software, adding a second module just for depth perception is an expensive endeavour which doesn’t benefit the camera in any other capturing modes. I wish OnePlus had invested the resources into a wide-angle or telephoto lens instead.

Speaker wise, it’s probably one of the weaker phones out there as the sound quality is below other flagships. However the OnePlus 6 has a 3.5mm headphone jack – which can be make or break decision for a lot of buyers, so congratulations on OnePlus for keeping the option for the consumer.

The battery life of the phone is also excellent. It doesn’t top out the charts as it does only have a 3300mAh battery, but the SoC and screen are power efficient enough to make up for it.

Overall I think the OnePlus 6 is an excellent device, and while it’s not perfect, it offers incredible value at its price range and easily beats out any other contender. The Galaxy S9, in particular the Snapdragon variants, are still probably overall better devices, but also come at a price premium.

Generally I’ll easily recommend the OnePlus 6 to any buyer as I just don’t see any deal-breaking negatives that would make anybody regret purchasing the phone.

Video Recording & Speaker Evaluation
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  • Icehawk - Saturday, July 28, 2018 - link

    Ahhhhh. That’s why phones aren’t USB3, ok I always wondered why not but never actually researched why.
  • jcc5169 - Friday, July 27, 2018 - link

    Is One-Plus even available in the US market?
  • PeachNCream - Friday, July 27, 2018 - link

    That's a nice phone! I'd prefer the addition of a microSD slot by maybe adding the capability to one of the SIM slots (I've seen a few dual SIM phones offer up that option) since removable storage is nice to have if you're moving from one phone to another. In this case, there's the potential to lose quite a bit of data if the OP6 dies suddenly. The price increase for storage capacity is VERY reasonable as well. It's way outside of my price range for something I carry with me on a daily basis though. There's just too many day-to-day bumps and knocks around along with the risk of loss or theft that have me convinced that it's not worth the price of entry to get something above the bottom feeders like the $5.29 new Huawei I just picked up last week. Phones, in my mind, are disposable devices so low-cost is the way to go.
  • eastcoast_pete - Friday, July 27, 2018 - link

    Nice review, Andrei! Question: I may have overlooked it, but this phone is NOT water- or dust proof, at least as far as I can tell, correct? That is a major minus point for a flagship phone in my book, as it "breaks" the deal/compromise of sealed battery, but IP67 or 68 water and dust proofing. Hey, even Apple came around to that view eventually. Here, we get the worst of both worlds, no user-replaceable battery, no SD card slot, and no water and dust proofing.

    Different question @ Andrei: are all benchmark tests for phones conducted at about the same room temperature? I assume they are, but, if they are not, that would add a major variable. Heat dissipation is just so much easier when in a room at, let's say, 20 C, versus one at 30 C (and we are having hot summers this year). And, circling back to my comment about water proofing, I imagine it's harder for a fully sealed phone (like the majority of current flagship phones, i.e. S9, S9+, V30/35, Experia Z etc.) to dissipate heat than it is for phones that aren't fully sealed up. Any comments? Thanks!
  • Andrei Frumusanu - Friday, July 27, 2018 - link

    It's not IP certified but as you may have read in some teardowns it does have many of the protections that are usually found in IP68 phones. I guess it could survive accidental water situations.

    The sustained are done in constant-ish (21+- 2°C) temperature, yes. I don't think IP proofing has any effect on thermals, the ingress points are irrelevant to temperature. Most phone's thermals are determined by the mid-frame build and how it's able to dissipate heat over its whole footprint to the screen and back.
  • 128bit - Friday, July 27, 2018 - link

    Never like chinese phones there phones looks good, but there quality overall not that good same like there cars and by the way this phone overheating.
  • Dr. Swag - Friday, July 27, 2018 - link

    Great article, but could you take care to proofread a bit better? There's tons of grammar mistakes (mostly missed commas) all over the place.
  • Dr. Swag - Friday, July 27, 2018 - link

    For the benchmarks, did you test for benchmark cheating at all?
  • tsk2k - Friday, July 27, 2018 - link

    Yes! Thank you so much Andrei and Anandtech, this is the only proper way to review a mobile phone.
    The web tests and frame drop testing is amazing, finally a way to quantify what I've been saying for years.
  • shoreview - Friday, July 27, 2018 - link

    Too bad that they refuse to put Verizon Band 13 LTE in there. It's pointless crippling of the phone. Like the missing ex-Nextel CDMA band that Sprint uses.

    Any insight on why this is? Did Verizon and Sprint actively intervene to keep OnePlus off their networks? In any case I've been on Android from the start but the support situation and security update situation are leading me to look more and more at iPhone. Which won't come easy; the USB lockdown on iOS and certain aspects of the OS are annoying to say the least. But this was one of my last hopes for replacing my Verizon-supplied Note 4 with another Android and it has been dashed. Getting a non-carrier-branded Samsung is a non-starter until they start taking long-term security support seriously; even Google Pixel is short of Apple standards by a year or two.

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