Wireless Performance

Microsoft has continued their tradition of using Marvell AVASTAR wireless cards, for better or for worse. They seemed to have quite a few issues with the network stack since Surface Pro first launched, but the latest hardware and drivers from Marvell has worked fine for me. It is a 2x2:2 802.11ac card, and it appears to be the exact same card used on the Surface Pro 3.

WiFi Performance - TCP

Wireless performance of the Marvell solution is far from class leading. At around 350 Mbps, it struggles to keep up with the best solutions out there right now. Broadcom seems to have the fastest, at around 500 Mbps on 802.11ac, and even Intel’s solution tends to achieve around 400 Mbps. If Microsoft wants to really push the envelope, they should maybe look at a new wireless card as a good place to move the bar up. I would love to see a 3x3 solution although I’m not sure that it could physically fit in such a small package.

Speakers

The Surface line has a great configuration for the speakers. They are front facing, but the speaker grilles blend almost invisibly into the display bezel. They give you nice stereo separation without making the tablet itself wider.

The speaker volume is sufficient, getting up to around 77-80 dBA depending on content. As with most devices, there is a definite lack of low end but that would be difficult to achieve on something so thin. Comparing it directly to the Surface Book while watching the latest Star Wars trailer, the Surface Pro 4 seemed to have a bit less range, but that is subjective. Both sounded pretty decent, and the stereo separation is great to have and very noticeable, but I would give the edge to the Surface Book slightly.

Camera

I don’t think a quality camera is a strongly differentiating feature on a tablet like it is on a smartphone, but it can still be important for video conferencing or even the odd still image. The Surface Pro 4 comes with an 8 MP rear camera, and a 5 MP front facing camera. The front camera also supports Windows Hello authentication however that’s not enabled at the moment. Microsoft built their own solution for Windows Hello, rather than go with the Intel RealSense 3D system, so when it gets enabled I’ll take a look at it and report back. My experience with the Intel solution was much better than I thought it would be, with extremely fast unlocks, so if Microsoft can match that experience then they have done a great job.

Camera Specifications
  Surface Pro 4
Front Camera 5MP
(2592x1944)
Front Camera - Sensor OmniVision OV5693
(1.4 µm, 1/4")
Front Camera - Max Aperture F/2
Rear Camera 8.0MP
(3264x2448)
Rear Camera - Sensor OmniVision OV8865
(1.4 µm, 1/3.2")
Rear Camera - Max Aperture F/2

The rear camera has 1.4 micron pixels, and a F/2 aperture which should help it with lower light scenarios, but the sensor size is just 1/3.2" so its not going to be competing with top end smartphones. Here are some sample photos.

The front camera also has 1.4 micron pixels, but the 5 MP sensor is just 1/4" in size. It keeps the F/2 aperture but moves to a wider field of view for use with video conferencing. For a Skype Camera, it’s fine and images are a bit grainy but serviceable for a webcam.

Software and Experience

I think one of the nicest parts of buying a Surface device is that you get the pure, unadulterated Windows experience, and with the Surface Pro 4 that of course means Windows 10. Microsoft puts no extra software on the devices at all, unlike every single other manufacturer. Even when you buy a Microsoft signature PC, OEMs still include extra things that are generally not necessary. To compare it to something would be the Nexus line from Google, which is Google’s take on Android. Surface is Microsoft’s clean look at Windows 10.

As a tablet operating system, Windows 10 has perhaps stepped back slightly from Windows 8.1, but the other side of the Surface Pro line is the PC experience, and that is greatly improved. With Windows 10, Microsoft has also launched their touch-first versions of Word, Excel, and PowerPoint, and OneNote gets a refresh as well. The licensing is such that in order to use Word Mobile for more than basic use, an Office 365 subscription is required, as it is on the Surface 3. Still, it is an option now and one that works pretty well.

Windows still lacks the breadth of tablet apps of iOS, but over the last couple of months there have been some decent additions to the store. Only time will tell if the app-gap can ever be closed, but with over 110 million devices already running Windows 10, Microsoft stands a better chance than with Windows 8 and Windows RT.

In the mean time, the Surface Pro with its 12.3-inch display, makes a pretty good notebook. Navigating Windows with the new Type Cover is much improved, mostly due to the larger trackpad. Typing up a document is also much better with the new keyboard. As a notebook, the experience has improved a lot. There has not been a big change in using the Surface in your lap, other than the improved stiffness of the type cover, so if you are using a notebook in your lap a lot, it really is something you will have to try for yourself. For me, it is OK, but a true notebook style device is still superior for writing in your lap.

Using the Surface Pro on a desk though is as good as ever, and no one has yet replicated the simple, yet powerful kickstand. The kickstand has defined what Surface is, and when using it as a tablet, being able to prop it up makes it much nicer to use in a lot of use cases. Add in the pen, and the Surface Pro is pretty versatile.

One piece of the experience that I have not yet been able to test yet is Windows Hello through the facial recognition of the Surface Pro 4, because it is not yet enabled. I’ve used this with Intel’s RealSense 3D camera before, and the unlock speed and accuracy is great. Microsoft has built their own solution which fits into the small bezels surrounding the tablet, but we will have to wait and see if it is as fast and accurate as Intel’s product.

Windows 10 is supposed to bridge the gap between traditional PCs and tablets, and Surface is the line that Microsoft is using to best showcase the results. The hardware and software do work well together, from the initial pen pairing when first booting up, to the tablet mode being enabled just by folding the cover back. Windows 10 supports pen input better than any previous version, and the pen itself is improved.

Battery Life and Charge Time Final Words
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  • Oyeve - Wednesday, October 21, 2015 - link

    Nice! It's also good to see my Dell Venue Pro 11 does so well in these tests! Reply
  • Wolfpup - Wednesday, October 21, 2015 - link

    Wow, that's awesome the base model is fanless! I assumed it still had a fan. Awesome the i7 model has what's really not a joke GPU too, and that a much more reasonable 128GB is standard! I think that base model is going to steal sales from the "regular" Surface 3...you go from 10.8 to 12.3", get a higher DPI, get a more powerful CPU and GPU, and it comes with Windows Pro too, which if you want it (I do for Bitlocker and remote desktop support) is sort of a $100 upgrade right there.

    Port your Unlimited app to Windows already, Marvel! (It would work through a web browser, but...)

    I like the design of the cooling system for the fan-ed models too...really damn clever.

    Geez, I like just about everything about these. These are literally EXACTLY what I've wanted since the first tablets were ever announced, since the first time I used a PalmOS device back in the 90s :-) I can't believe how much improvement the whole line has seen in just a few years!
    Reply
  • Stocklone - Thursday, October 22, 2015 - link

    That's exactly what happened for me. I was going to buy my mother-in-law a maxed out Surface 3. This had been the plan for the past month. Then SP4 m3 appeared. I just pre-ordered the SP4 m3 about an hour ago. I know she's going to be 100x happier with it than the S3. Reply
  • GusSmed - Wednesday, October 21, 2015 - link

    I really appreciate the quality of this review. I was looking over other Surface Pro 4 reviews today, and I was astounded at how poor the quality of the testing was in every review I've read before this one. Most didn't even bother to benchmark it in any way, and one claimed you had to throw the pen away when the battery ran out.

    The main thing I'd like to see more on is how easy it is to use the Windows Desktop with the pen, in situations where there's no surface for a mouse. Most of the Windows software I use is unaware of the touch interface and does poorly with finger presses. Hopefully a pen addresses that.
    Reply
  • Brett Howse - Wednesday, October 21, 2015 - link

    The pen works well for that. Reply
  • KateH - Thursday, October 22, 2015 - link

    I use a Surface Pro 2, and the pen is a godsend for desktop stuff. Apps & websites that aren't touch-aware treat the pen like a mouse input, works really well. Reply
  • johneg - Wednesday, November 4, 2015 - link

    It works well for me on a SP3. The pen is much more precise than my stubby fingers! A webpage with many fill fields and controls on a 12" screen needs accuracy of touch. One problem: When a text input field is accessed without the cover the on screen keyboard is set for handwriting. There's no way for pen input of controls and an onscreen keyboard with keys. I've used the MS feedback form to ask for an option for pen control and onscreen keyboard with keys (not a writing surface) without response. There's many people using the SP3 and pen this way. Reply
  • Drumsticks - Wednesday, October 21, 2015 - link

    Do you have a comment on the relative efficiency of the Skylake GPU against Qualcomm and Imagination Tech solutions? It seems like absolute performance is obviously better, but performance per watt might be a lot worse? It's hard to say without knowing the total power envelope for the GPUs in the respective packages, though. Any input from our experts at Anandtech (or the commenters)? Reply
  • extide - Wednesday, October 21, 2015 - link

    Well, remember the chip's TDP is 15w -- which is going to be quite a bit more than most tablets. Honestly, I think it will be really interesting to see some benchmarks of core m skylake vs the arm tablets... Reply
  • Der2 - Wednesday, October 21, 2015 - link

    Microsoft wins.

    EXCELLENT Review Brett! Wow, Skylake really did add great performance to the surface, and not to forget windows 10 onboard with a better display. Woo!
    Reply

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