How to Design a Better Cell Phone
Monday, January 8, 2007 at 9:01pm Post comment
With the rumors rampant about an Apple made cell phone possible being introduced tomorrow, I wanted to write something ahead of time so if it does prove to be true I'm not just armchair quarterbacking the day after.
Some of the rumors seem to include just about everything with the full features and capacity of an iPod nano included and somewhere there was something about a full slide out keyboard. None of that is core to what a cell phone needs to be, they're all extras once you get what I consider the three necessities done right. My three necessities are 1) being able to talk on the phone, 2) keep an address book so I don't have to remember numbers, and 3) mail, which on a cell phone comes in voice, txt, and e-mail varieties.
Since problems with being able to talk on the phone really rests on the cellular networks there's not much room for to innovate there, but the other two leave a lot of room for Apple or someone else to improve. Apple is a company which would not just realize this, but center the entire design around making these core functions simple and intuitive, just as they approached making music players, and more recently a remote control.
For starters the 10 digit keypad is not a quick and convenient way to enter the name of that cute guy who's giving you his number. I always get a letter wrong, try and hit the little tiny backspace button and accidently hit the bigger cancel button next to it and have to start over and ask him to repeat the number.
The number pad is clumsy, which means function buttons like delete need to be especially easy to use, not crammed so tight together I think the designers resented having to add extra buttons at all and tried to cram them together. And I mean cram in both how physically close they are on the phone and also buttons have very different behavior depending on where you are in the phone interface. One of the buttons on my phone sometimes means select or OK while at others means it pulls up an options menu. What I find confusing is why there is this context switching, when my phone has a dedicated OK button already. What gives?
As far as I can tell there are four functions needed on most screens (some don't need the delete so it sometimes becomes a duplicate back key) and four buttons (not (including the direction arrows) on my phone. This should be a very simple one-to-one mapping and when a function isn't need, it's button is turned off instead of taking a different function because I get confused about what does what where.
Now that's just getting someone into the address book, managing it is a whole other problem. My phone lets me create groups for my contacts, and other phones offer more features and handle this better, but the only purpose of groups is to display contacts in that group, which takes long and when I do this I can't search like I can when I just pull up the entire address book. Most phones don't offer a way to get at your most frequent contacts other than putting them on speed dial and I don't accept speed dial is the end of the line, especially with all these extra function buttons on the phone. And then there is syncing the address book with a computer, which is more appropriate for making edits anyway. This is a place where Apple has had a lot of experience from syncing iPods and settings via .mac.
Then there is voice, text and e-mail. Everything I said above about entering a name applies here as well, but then just the listing screens can be so much better designed. My phone lists txt messages with the send and the first line of the message, all of which is set in bold without spacing between each message. The name can be large and bold, but the first line should be in the smaller and non-bold font. Along with that it should also track what I've done with a message and show icons when I've replied and forwarded messages, just like an e-mail program does.
My biggest issue of all is with voicemail, which cell phones do little more than tell you you've got a new ones and when I call in to check then I have to remember the which button does what.
More than once I've deleted a message instead of just skipped it, but why is that? On the surface it could be fixed the quick and dirty way by putting labels on the buttons saying what they do for voicemail, but that means there'd be duplicate buttons again for delete, next and other functions. Improving upon that the voice mail functions could be mapped from the numbers to the other function buttons. Delete would map to delete, next to the next button, and you get the drift, but below the surface the problem didn't start when I pressed the wrong key, it started with me listening to a voicemail message I didn't want to listen to.
Solving that problem means ditching the whole system of calling into voicemail and having to go through each message one by one. It seriously was easy on my parents answering machine 15 years ago, because that had one big blue button which skipped to the next message. Instead, voicemail would be easier if I could use a listing like txt and e-mail to see who left a message, when and if I've listened to it. Doing that has a lot of technical complications (does a cell phone get an itemized list of voicemails waiting, or just that there is one or more?), but I've been thinking what if you did away with calling into voicemail and moved the whole thing onto the phone, which could answer the call, but answer it as voicemail without having to bother you with it. This would let the phone be able to show you an e-mail like listing of messages. When your phone is actually off or out of range, the phone companies voicemail would pick it up, but when the phone get pinged that you've got messages it could silently call in and get the count before notifying you and start downloading them. The phone would be able to do this because it would be programmed to understand the voices used by supported company's voicemail system and turn it into the text used on the listing screen.
These are ideas I've had about improving the interface on cell phones, which getting back to the rumors are what I think Apple would focus on first if they designed a cell phone. Most people already associate Apple being simple and easy to use which puts them in a good place for any market they want to enter where the majority of products are hard to use and overly complicated.
We'll see tomorrow what actually happens.
Jamison Thursday, January 11, 2007 at 9:53am
Thanks Annie. I'll have to wait until they release a version I can use my own phone company (and hopefully lower prices) before I can get one, but I'm glad Apple took the path I expected making the first priority a better cell phone. The keynote speech looked like it spent most of the time on that before running through the extras pretty quickly. Impressive extras, but some of them didn't need much introduction since we all know and use Google maps already, just not on our phones.

Annie Tuesday, January 9, 2007 at 11:26am
Wow, looks like the new phone solves a LOT of the problems that you outlined!!!! So exciting. I can't wait to get my hands on one to test out.