Tag Archive | "test"

Windows 8 Metro UI, Tablets and Mobility – Let’s talk about the Mis-Match

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IMG_7659_thumb2Many of us have downloaded the Windows 8 Developer Preview to give it a test run and I think it’s fair to say that the most exciting feature to test is the Windows 8 Metro UI. Focused on touch, app-snacking, consumption and entertainment it has been an interesting product to think about in terms of mobile computing; real mobile computing. Getting the balance of UI right for both on-the-go and bum-on-seat activities hasn’t been achieved by anyone yet. Windows 8 is the big hope for that in the future.

Not only does Windows 8 introduce this interesting Metro UI and apps layer, it also approaches quick-startup and efficiency. In testing it over the last few weeks on four mobile devices, I’m not as positive as a was a month ago about the Metro UI although it’s way better than anything I’ve experienced as an overlay on Windows before and ultimately, I’m enjoying its responsiveness, sharing sub-system, full-screen Explore browser and dynamic nature. There are some serious issues to talk about though.

The first is that while Metro works on low-resolution devices, the apps won’t because they require a minimum of 768 pixels vertically. For the side-by-side snap feature, you need 1366 pixels minimum width. There are also major issues when working in portrait mode – something that isn’t really supported at all. The resolution restriction seems crazy when you consider the cost and size of 1366×768 screens. I don’t see anyone producing that at 7″ and as it’s not compatible with 1024×600, 100 million netbooks users are going to be left out.

[Ref - Screen size recommendations for Windows 8]

You might argue that we just need much higher resolution screens. I’ve tried Windows 8 on a 1280×800 screen at 5.8″ and yes, Metro apps work. Text might need a little enlargement here and there but it works. Some issues remain though. Touchscreens can’t be recessed otherwise it’s not easy to find the magic swipe that expose the hidden menus on the right and bottom left corner. Forget resistive screens. That’s not such a big deal considering the level of capacitive and digitiser deployment and it’s also not much of an issue for the classic Windows UI either as that’s the one you’ll be using who you’re docked at your desk. The other issue comes with cost and battery drain. High resolution screens are expensive to produce, especially if you want one that’s readable outdoors. There’s also the power cost in terms of the display electronics and the graphics power needed to control it. Given that most people are more than happy with 200ppi, a higher density in a 7″ frame is counter-productive, at least for large-font Metro. People with perfect eyesight may disagree with 200ppi but I regard it as a good trade-off point for screen design.

 

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Windows 8 Metro UI in Portrait Mode

It’s unfortunate that the developer preview is indicating that portrait mode isn’t encouraged. All the apps in the preview fail to work efficiently in portrait mode despite that fact that in portrait mode you get the best split-screen keyboard experience and preservation of screen real estate.

I agree with those that say portrait is useless on a top-heavy device of 2lb or more but what about 2013, 2014 when 10” Windows 8 tablets could be under 1lb and when even the 7” form factor could be possible with a hi-res screen?

To demonstrate what I mean here, I’ve made a video showing the Windows 8 developer preview on an ExoPC in portrait and landcsape modes.

Continued…

Droid Browsing Speed Video. (And my comparison notes.)

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Seeing as I’ve just declared the Archos Android Tablet as (possibly) the fastest ARM-based browsing device ever, it makes sense to show you someone else’s test on a similar platform. Engadget did a single Engadget page load test on the Motorola Droid which is running Android 2.0 on the Ti OMAP 3430 platform. (@533Mhz I understand.) The single-shot test is obviously not conclusive but it’s actually quite an accurate result in my opinion.

As you can see, the iPhone 3GS beats the Droid. 12s for the iPhone 3GS and 20 seconds for the Droid.

For the record, three cleared-cache attempts here with the Archos Android tablet resulted in a 14s average. Pocketables tested the same site and got 10.9 seconds (with 12.4 for the iPhone 3GS.) Clearly location will make a difference (Bonn to San Jose is a long way!)  but why is the Droid slower than both the iPhone 3GS and Archos Android Tablet?

The Archos Android Tablet uses the Ti OMAP 3440 which can run up to 800Mhz. 50% faster than the iPhone and Droid. That explains why the Archos device is faster. At like-for like CPU speeds though, the  iPhone browser is simply a faster browser; probably as a result of its single-tasking OS.

Intel comparison.

Here are the non-cached figures from Firefox3.5 on XP, on Intel: (Tests done today from Bonn over Wifi)

  • Menlow at 800Mhz (Flash disabled. Using Viliv S5 SSD): 12s, 9s, 10s (10.3 average)
  • Menlow at 1.3Ghz: 10s, 7s, 8s (8.3 average)
  • Netbook at 1.6Ghz (no Flash, SSD): 5s, 6s, 6s (5.6s average)

In this case, the Viliv at 800Mhz is slightly faster than the best test results from the iPhone 3GS and Archos Android Tablet but at the end of the day we’re looking at excellent browsing speeds across the board here that really should keep most people very happy indeed. I’m looking forward to re-visiting this subject with Moorestown and ARM multi-core Cortex A9 in 2010 though.

Source: Engadget.

Viliv S7 pics and battery testing

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s7r_1_12Full specs, details, news links and more at the Viliv S7 Portal page.

Pocketables.net picked up a story that has a nice cache of Viliv S7 photos from Korean site Lazion.com. In addition to the photos there are some impressive battery life figures from a few battery tests.

s7r_1_17

Viliv claims that the 2-cell 4700Mah battery can last for 9.5 hours and while that might be technically possible, some real-life usage tests have clocked in under that claimed time, but are still impressive.

Test: Video Playback – DivX 3.11 / Resolution 720×400 / bit rate 1.64Mbps / wireless – Bluetooth off / screen brightness maximum / max volume
Result: 6 hours, 13 minutes

Condition: Video Playback – XviD / Resolution 640×360 / bit rate 1.64Mbps / wireless – Bluetooth off / brightness medium / volume 20%
Result: 7 hours 28 minutes

Test: Korea@Home distributed computing client – Wireless LAN on / screen brightness maximum / sound off
Result: 5 hours 45 minutes

s7r_1_21 Check out the original article for more images.

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