Thursday, December 25, 2008

Which keyboard is best on mobile phones?

It seems that mobile phones are the main place where UI experiments are still being done. One of the types of UI experiment that recently drew my attention was in keyboard design.

Palm Treo

I just got a Palm Treo from work. That Treo has a built in QWERTY keyboard with horribly small keys. The keyboard is always available, together with the screen. And although that sounds convenient, it does mean that both the screen and the keyboard are small and the device is clunky.


Compare this to the design of the first Google phone: the T-Mobile G1. When using this device as a phone the keyboard is stowed away under the screen. When you want to access one of its many PDA functions, you fold away the screen and the mini QWERTY keys become available. So while in phone mode the device is a lot smaller, but in PDA mode it is bigger.


Lastly there's the iPhone solution: a virtual on-screen keyboard. There on-screen keyboards were pioneered by Windows PDAs about a decade ago, but leave it to Apple to breathe stylish new life into an existing concept. The screen on your iPhone is big and can be used for normal operation. Until you need a keyboard, then the screen is split into two: the top section remains a normal screen and the bottom section becomes a virtual keyboard. The virtual keys are as miniaturized as their physical counterpart. But they do miss the tactile feedback you get from the other devices. So while it looks endlessly better, inputting text on the iPhone is probably slower than on the others.

So what do you think? Which is the better way of inputting text on your mobile device? The Treo approach of an "always on" keyboard? The way the Google Phone hides the keyboard during normal operation? Or do you prefer the iPhone's virtual keyboard?


Unknown said...

Having worked on the latest smartphones doing competitive and usability analyses, I say that the Nokia E71 and the BlackBerry Bold have the best mobile keyboards in the business!

iPhone is fine for SMS and short emails. For writing long emails, I would go for the Nokia E71 or the BB Bold. The newly released BB Curve 8900 also has the BB Bold style keyboard.

Anonymous said...

Or something different altogether, like Swype.

Anyway, a special keyboard (although not the Treo's) will usually win a typing contest, but you also have to consider the extra weight and volume a keyboard takes up (even if you can fold it away), and how often you will want to type more than one line at a time on the device (I am sure that is what Apple's considerations were).

Anonymous said...

Coincidentally (I actually bookmarked the link from the previous page ages ago) Swype was mentioned on Slashdot yesterday, so let me just update with another link that is apparently the original, and available as iPhone software today:

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