iOS 5.0’s Advantages over Android 4.0

This article was just updated! You can view the new version here. It compares iOS 6 to Android 4.1.

Android has come a long way, but iOS is very mature and still has quite a few advantages over Android. Yesterday I listed the things I like better about Android 4.0 OS. Here are the things I miss most from iOS 5.0 and the Apple mobile ecosystem.

  1. Better overall app quality – Android apps have improved, but still don’t match the App Store when it comes to overall app quality. Apple tests all apps and it shows. Apple also excels in categories like games.
  1. Few tablet-optimized apps – Andy Rubin once said he didn’t think there should be apps specific to a tablet. I don’t agree with this statement. While it’s true, a well-designed app should adapt to different screen sizes, iPad-optimized apps provide a much better experience than standard iPhone apps. I wish the Android Market had a filter for tablet-optimized apps.
  1. More iOS-only or iOS first apps – By now you’d think all popular apps would be available on both platforms, but that’s not the case. Android is still missing some popular iOS apps. To make things worse, even when developers support both platforms, they often release their iOS apps first. If I were Google, I would provide incentives to top app developers to make sure they release their popular apps at the same time on both platforms.
  1. iCloud – Google had a huge lead in the area of cloud-based apps, but they still haven’t put together a comprehensive solution like Apple has with iCloud. Sure you could create an iCloud-like solution, but you’d have to do with a collection of apps. Apple makes it easier.
  1. Better intelligent personal assistant – I’ve tried Iris and a few other Siri competitors on Android and they don’t compete with Siri yet. It’s ironic that Google let Apple win in this area, because they still have better cloud-based voice recognition and return more useful search results in general.
  1. Better cut and paste – Apple has done a better job implementing their cut and paste. The also have more region selection options. This is one of the things I miss the most.
  1. Better calendar app – Another thing I miss is the iOS calendar. I found it much easier to add appointments to the Apple Calendar than the Android Calendar.
  1. No carrier bloatware – Carriers load all non-Nexus Android phones with useless apps. Some of these are links to paid services, others are carrier-branded apps. Most are things you don’t need and will never use. They clutter your screens and can’t be removed.
  1. Less OS fragmentation – Carriers decide which versions of the Android OS to include. Oftentimes they do not allow users to upgrade to the newest OS. This combined with carrier skins makes the Android experience vary from phone to phone. Although Apple does have some problems with fragmentation of older phones (e.g. iPhone 3G), it’s not near as bad as most Android phones.
  1. Better voice mail app – I think it’s ridiculous that I have to dial *86 to get voice-mail on my Galaxy Nexus. You’d think its 1998, not 2012. Apple’s phone app has dedicated voice mail button and its interface is excellent.
  1. Better power management – iOS devices seem to have power management than Android devices. Some of this may be a result of the fact that iOS doesn’t allow third-party apps to run in the background. Others might have to do with the fact that iPhone 4S has an under-clocked processor and no LTE support. Whatever the reason, it’s an Apple advantage.
  1. One-button operation – Apple uses a single button to return to the Home screen, display the search box, and show recently opened apps. Is it intuitive? No, but once you learn it, it works well.

These are the things that I miss about iOS. What did I leave out?

This article was just updated! You can view the new version here. It compares iOS 6 to Android 4.1.

– Rick

Copyright 2012 Rick Schwartz. All rights reserved. Linking to this article is encouraged.

Follow me on Twitter @mostlytech1

How to Evaluate Mobile Processors


Since this article was first written, an updated version has been posted here. Check it out. A lot has changed.

The Need for Speed

The HTC Rezound has a 1.5GHz processor making it one of the fastest smartphones

The processor is the engine behind your mobile device and determines its speed. Mobile processor speeds have been increasing quickly over the past few years. Today, most of the best smartphones have processors which are either 1.2GHz or 1.5GHz. The HTC Rezound and Samsung Galaxy S II HD LTE both have dual-core 1.5GHz processors. Processor speed isn’t the only thing that matters. The number of cores is important as well. Back in February, we saw the first smartphones ship with dual-core processors. Dual-core processors allow your mobile device to do more things at once without slowing down. They are also faster than single-core processors and this can result in a more responsive user interface. Over the next year, dual-core processor speeds are likely to top out around 1.7GHz. Although processor speeds will continue to increase, there are limits to how fast they can get. Mobile processors are beginning to face the same performance and power challenges desktop CPUs faced a few years ago. Demanding applications such as HD video playback and advanced gaming are stretching their capabilities. In order to further increase performance and stay within the available power limits, mobile devices will migrate to processors with more cores.

Apple iPhone 4S

HTC Rezound

HTC Titan

Motorola Droid RAZR

Samsung Galaxy S II

Samsung Galaxy Nexus

Samsung Galaxy S II Skyrocket

800MHz dual-core

1.5 GHz dual-core

1.5 GHz single-core

1.2 GHz dual-core

1.2 GHz dual-core

1.2 GHz dual-core

1.5 GHz dual-core

Chart 1: A comparison of the processor speeds of popular smartphones

Four Can Do More

Like PCs, mobile devices will migrate from dual-core to quad-core. Quad-core makes even more sense on platforms like Android which allows multiple apps to run in the background. Having four different cores allows your phone (or tablet) to do more at once without slowing down. Tablets will be the first mobile devices to get quad-core processors.  The NVIDIA Tegra 3 will be the first quad-core processor available on mobile devices. NVIDIA says it has 2 to 5 times the processing power and 3 times the graphic performance of the Tegra 2. This will result in smoother graphics and better gaming performance. The Tegra 3 is also capable of 1440p video playback. That’s higher quality than you can watch on your HDTV. The Asus Transformer Prime will be the first tablet to ship with a Tegra 3 processor, but rumors are also circulating about quad-core tablets from Motorola and others. Smartphones won’t be left out of the party; phones with quad-core chips will be announced at CES in January.

The Asus Transformer Prime will have the first quad-core CPU

Most quad-core processors are more efficient and generate less heat than today’s dual-core chips. That will result in better performance and longer battery life. How much longer? NVIDIA says a Tegra 3 tablet should be able to provide 12 hours of HD video playback.  The first quad-core processor will be 1.3GHz, but speeds will increase to 2.5GHz next year. Those chips will be faster than some of the CPUs that ship with mid-priced home computers today. Of course, NVIDIA isn’t the only company making quad-core processors, Qualcomm, Apple and others will also launch products containing quad-core processors next year.

Amazon Kindle Fire

Apple iPad 2

Asus Transformer Prime

B&N Nook Tablet

HTC Jetstream

Motorola Xoom 2

Samsung Galaxy Tab 10.1

1.0 GHz dual-core

1.0 GHz dual-core

1.3 GHz   quad-core

1.0 GHz dual-core

1.5 GHz dual-core

1.2 GHz dual-core

1.0 GHz dual-core

Chart 2: A comparison of the processor speeds of popular tablets
 

The Importance of the Graphics Co-processor

Some of the fastest phones have separate graphics co-processors, which can have a big impact on performance. Even though the iPhone 4S has a slower processor, it outperforms the Samsung Galaxy S II in some benchmarks. This occurs mainly because the iPhone 4S has a faster graphics coprocessor. See the chart below for details.

Even though the iPhone 4S has a much slower processor than the Samsung Galaxy II S, it outperforms it in some benchmarks. Chart courtesy of AnandTech

 

Final Thoughts

In summary, the speed of the CPU and GPU in your mobile device has a major impact on its performance. Dual-core processors almost always outperform single-core processors, and quad-core processors outperform dual-core processors. Although dual-core processor speeds are starting to slow down, quad-core speeds will improve substantially next year.  By the end of the year, quad-core processors will be found in most high-end tablets and smartphones due to their improved performance and extended battery life.

In case you’re wondering, my next post will discuss the importance of 4G on data performance speeds. Stay-tuned…

– Rick

Copyright 2011 Rick Schwartz. All rights reserved. Linking to this article is encouraged.

How to Evaluate Mobile Displays


Since this article was first written, an updated version has been posted here. Check it out. A lot has changed.

In my last blog post I talked about the best mobile devices on the market today. This will be the first in a new series of posts that will help you evaluate each part of a smartphone or tablet. Since the display is the main interface to your mobile device, let’s start with it.

Bigger is Better

Three main parameters are used to specify the size and quality of a mobile display:

  1. Screen size measured diagonally in inches
  2. Screen width and height in pixels
  3. Screen density measured in pixels per inch (PPI)

The Samsung Galaxy Note has a much larger screen than the iPhone 4S

Today’s best smartphones have displays which are 4.3″ or larger. The largest screen available on a smartphone in the U.S. today is 4.7″ and can be found on the HTC Titan. Think that’s big? It is, but mobile displays are going to continue to get larger. The Samsung Galaxy Note, which was recently released in Europe, has a 5.3″ screen.  As screens get 6″ or larger, the line between smartphones and tablets will begin to blur and these devices may no longer fit into your pocket. Is it worth it? If you spent lots of time browsing the Web, playing games or working with business documents the answer could be yes.

Screen Size

Pixels (H x W)

Screen Density

Apple iPhone 4S

3.5”

960×640

326 PPI

HTC EVO 3D

4.3”

960×540

256 PPI

HTC Rezound

4.3”

1280×720

342 PPI

HTC Titan

4.7”

800×480

199 PPI

Motorola Atrix

4.0”

960×540

275 PPI

Motorola Droid 2

3.7”

854×480

264 PPI

Motorola Razr

4.3”

960×540

256 PPI

Samsung Galaxy S II

4.3” or 4.52”

800×480

217 PPI

Samsung Galaxy Nexus

4.65”

1280×720

316 PPI

Samsung Galaxy Note

5.3”

1280×800

285 PPI

Chart 1: A comparison of popular smartphone displays

Quality Matters Too!

The HTC Rezound has the highest resolution display available today.

Screen width and height is another popular measurement. Today the best smartphones have 1280×720 pixel displays. The Samsung Galaxy Note has an even larger 1280×800 display. Although the total number of pixels is important, it’s not the best indicator of screen quality. The density of pixels is what really matters.  The higher the pixel density, the more detail a screen can display. Although most people think the iPhone 4S has the highest pixel density, they are wrong. The HTC Rezound has a display with a higher pixel density than the iPhone 4S (342 vs. 326 ppi). Even better screens are on the way. Earlier in the year, Toshiba announced a 4-inch screen with a 367 PPI resolution. Pixel densities are likely to hit at least 386 in 2012.

It’s worth mentioning there is some debate over the ideal pixel density. Steve Jobs once said a device with a pixel density of 300 exceeds the limits of the human retina. However, some photographic experts say that number is too low. They believe the ultimate pixel density is 477 PPI. At that point, it’s said the pixels become invisible to an unaided human eye.

What About Tablets?

Screen resolution is one area where tablets can improve. The best tablets have screen densities below 200 while some smartphones have pixel densities higher than 300. Apple is known for their great displays. How does the iPad 2 compare to Android tablets? Let’s see: The iPad 2 has a 9.7″ screen with 1024×768 pixels. The Motorola Xoom has a 10.1″ screen with 1280×800 pixels. Which is better? The Motorola wins on all three categories: screen size, total number of pixels and screen density (with a pixel density of 160 PPI vs. 132 PPI). If you refer to the chart below, you’ll see there are five other Android tablets with even higher screen densities than the Motorola Xoom. Will we see higher resolution tablet screens next year? Definitely! The Lenovo LePad S2007 will have a 216 PPI display and tablets with 2560×1600 screens will be available some time in 2012. These tablets will have a screen density of at least 300 dpi.

Screen Size

Pixels (W x H)

Screen Density

Amazon Kindle Fire

7.0″

1024×600

169 PPI

Apple iPad 2

9.7″

1024×768

132 PPI

Asus Transformer

10.1″

1280×800

160 PPI

Asus Transformer Prime

10.1″

1280×800

149 PPI

B&N Nook Tablet

7.0″

1024×600

169 PPI

Motorola Droid XYBOARD 8.2

8.2″

1280×800

184 PPI

Motorola Xoom

10.1″

1280×800

160 PPI

OGT Eros Tablet

7.0″

N/A

188 PPI

Samsung Galaxy Tab 7.0

7.0″

1024×600

171 PPI

Samsung Galaxy Tab 10.1

10.1″

1280×800

149 PPI

Chart 2: A comparison of popular tablet displays

That’s Not All

Of course pixel density isn’t the only thing that matters when it comes to screen quality. The color accuracy, color vibrancy, brightness, contrast ratio, black level and viewing angle are important as well. The durability also matters. Gorilla Glass screens are more damage resistant than regular displays. Gorilla Glass 2 screens are on the way, so watch for those.

Well, that wraps up my review of mobile screen technology. In my next post, I’ll write about the heart of every mobile device: Its processor.

Thanks for stopping by.

– Rick

Copyright 2011 Rick Schwartz. All rights reserved. Linking to this article is encouraged.