Product Requirements:
Desktop:
486 MHz PC or higher (Windows 98, Windows ME or Windows 2000)
Apple Macintosh compatible computer with PowerPC processor (Mac OS 8.1 or later)
CD-rom

Handspring's much anticipated color device is now available. The aptly named Visor Prism has a 16bit LCD screen capable of displaying over 65,000 colors and the fastest processor yet for a Palm OS device. Is the Visor Prism better than a Palm IIIc? Let's see...

Hardware Specs:

Operating System: Palm OS version 3.5.2H
Processor: 33 MHz Motorola Dragonball VZ
Memory: 8 MB
Display: 160x160 pixel, 16bit Active Matrix TFT 65,536 Color display
Size: 4.8" x 3.0" x 0.8" (12 cm x 7.5 x 2.1 cm)
Weight: 6.9 oz (194 g)
IrDA port
Built-in Microphone (Enabled by Springboard modules)
Springboard Expansion Slot
Battery: Internal Lithium Ion Rechargeable (Life is 2 weeks or 6 continuous hours)
AC Adapter: Input: 100 - 240V ~ 50/60Hz 350mA Output: 5.9V 2000mA

At first glance the Prism might be mistaken for the original Visor model. The body has the same basic style and shape. But of course, there are some major differences so let's check this new unit out.

The front of the Prism looks pretty much identical to the original Visor except for three things. The most noticeable is the power button which is now on the right side of the unit. This new location is hard to get used to after having used other Palm devices all these years. I'm constantly trying to press the left side without thinking. I'm very puzzled that they did this. The Prism looks like a mirror image of the Visor Deluxe. I don't see why they couldn't have put the power button on the left like it has always been.

A new addition is a very small LED directly across from the microphone hole. This green LED blinks when charging in the cradle and glows steady when the battery is fully charged. Too bad they didn't include an option to allow the LED to blink when an alarm goes off in addition to or instead of the speaker. I think that would have been a nice touch...

The other difference is with the silk screen area. The background color is now kind of silvery instead of green. Also, the printing is now a blue color to match the case. The background color is fine, but I wish the printing was black instead of blue. It just seems harder to see... This is more of a personal preference though due to the fact that it takes about 10 secs to memorize what and where each of the silkscreen icons are.

As with the previous Visor models, the buttons have very good tactile feedback and click when you press them. The buttons are a little different than the Visor Deluxe though. The application button tops are all concave instead of just the middle of the buttons like on the Deluxe. The application buttons are the same size as previous models while the up and down scroll buttons are just the slightest bit bigger.

The IR port is still located on the left side of the PDA. I really prefer IR ports to be located at the top of a PDA, but this is just personal preference. I was able to beam an address from a Palm IIIc to the Prism a maximum of 6.5 feet.

The stylus silo is still on the right side of the PDA. One nice touch is that the stock stylus is better than most. It has a polished metal body and two screw off ends. The stylus tip end screws off to reveal a reset pin while the top of the stylus unscrews to reveal a tiny Philips screw driver.

The Springboard slot is still in the same location as previous models. All the current Springboard modules should fit and work just fine in the Prism.

The back of the PDA is the only part of the case that has been significantly restyled. The back is thicker and curved at the bottom. Due to this change, the Prism will not fit in cases made specifically for the Visor Deluxe because the new unit is just too fat. In addition, the snap on cover does not fit on the back of the unit.

 
Top to bottom: Visor Deluxe, Visor Prism, Palm IIIc

Even though the case is thicker, it still feels comfortable to hold and use. Holding both a Visor Deluxe and the Prism, I didn't find the Prism's larger size to be that noticeable in my hand. The sides are rounded so it doesn't feel like a brick. It is a bit heavier than previous models but the added weight is negligible. If you wear your PDA on your belt, I don't think you would be able to tell much of a difference between the Prism and the Deluxe as far as size and weight. But, if you carry it in a shirt pocket, you will probably notice a difference. Over all the Prism feels solid and well made. It doesn't creak or crack when you squeeze the case.

Size:

Something that most people might not know  is that the color display that the Prism uses is the exact same display that the Palm IIIc uses. However, the Palm IIIc uses a different controller so that it only displays a maximum of 256 colors while the Prism can display a maximum of 65,536 colors.

Screen dimensions:

Just out of the box, you really don't notice that the Prism has a 16 bit display. If you look at a Palm IIIc and a Prism side by side, the displays look pretty much the same in all the built in applications. The have the same brightness and contrast. If you didn't know that you had a 16bit display capable of showing over 65,000 colors, you wouldn't know it... There have been no changes to the OS to take advantage of color. Even the built-in Datebook+ app which is a version of the popular Datebk application is black and white. The current shareware version of Datebk has been colorized for months now. The only app built into ROM that uses color is the lite version of City Time. But even it doesn't look as good (in my opinion) as the full version that is available for download.


Left to right: Prism's City Time, Full version of City Time

Below are some pictures that I took of the screen indoors without using flash. As you can tell, even with the extra colors, the Prism screen still shows somewhat pixilated images. No matter how many colors you have to pick from, you only have 160 x 160 pixels to display at once. What the Prism and Palm IIIc need is a larger screen. I'll be happy when the day comes that they do away with the dedicated silkscreen area and use an on demand input area like the Pocket PC.

The additional colors that the Prism can display is a nice feature, but it doesn't make the PDA a must buy Palm device in my opinion. For one thing, when you take the Prism home and open the box, you don't get any really cool color apps (except City Time, and Calc.....woo woo). But, you can download two apps from the Handspring website. One is a photo album which is used above to display my dog (Kasey) and my house. I can't tell a huge difference between the photos in this program and the same photos using the Club Photo software on a Palm IIIc.

The other program is a shooting game called Zap 2016. Below are two pictures of two versions of the Zap shooter. The left picture is a screen shot from the Prism and the right picture is a screen shot from the Palm IIIc. Although these are screen captures and not actually photos of the screen, they are pretty much true to what the screen looks like while playing this game on both devices. I think these pictures give you a really good idea of the difference that the extra colors on the Prism make. Yes, the Prism looks smoother and more 3D-ish. But, right now these two programs are the only ones that you can get for the Prism that show off all the colors. Personally, I don't find the differences to be that fantastic. 

Now for the bad news... My Prism has the most horrible digitizer problem that I have ever seen. It recognizes 1 out of 10 graffiti characters. I'm very good at graffiti, so it isn't by any fault of my own :-) I know it's a digitizer problem because I've read that quite a few other Prism owners are also dealing with it and it appears to be a somewhat common defect. It is VERY annoying. I had a similar problem with a Palm IIIc. I ended up getting a refurb from Palm that fixed the problem. I'm going to do the same with this Prism.

** This problem has been fixed with a software patch that is available on the Handspring website. I downloaded the patch and it fixed my digitizer problem.

The speaker on the Prism appears to be the loudest speaker yet for a Palm OS device. It is definitely louder than both the Palm IIIc and m100.

The Prism uses the same type of serial port as the older models, but it will not fit in the older cradle because of the thicker case and plastic fin at the bottom. I'm not sure why they did this. It looks like that the fin is unnecessary to me...

The new cradle is pretty similar to the previous one. But,  I like the newer cradle much better because they did away with that annoying little hook in the back. Now, the PDA just rests in the cradle and can easily be lifted out without having to hold on to the base. It's crazy, but little things like that make me happy :-) Because the Prism is thicker and has the 'fin', it will not fit in the older cradles. But, older Visors will fit in the new Prism cradle.

I noticed one small feature that has been removed from the Prism. You can no longer set the PDA to always be turned on while in the cradle. Some people like to leave their PDA on and use it as a clock while it is in the cradle. You can just set the auto-off to 30 sec, 1, 2 or 3 minutes max.

The power cable for recharging the battery plugs into the USB plug. Unfortunately, the PDA doesn't have a port to plug the AC adapter into directly. So, if you travel a lot, you'll have to bring both the cradle and AC adapter with you.

Battery-wise, I had no problem with the rechargeable battery in the Prism. When I first got the Prism, I fully charged it up the first time which only took 2hrs and then did not charge it again until a whole week (7 days) later. It was down to about 25% full, but it did not give me any warnings. During the 7 day period, I was beaming back and forth, installing programs etc.

What about overall system speed? Well, this is where the Prism shines. The Prism processor is a 33 MHz Motorola Dragonball VZ. In comparison, the Palm IIIc uses a  20MHz Motorola Dragonball EZ processor. 

Benchmarks using Neil Bridge's Benchmarking program:

Visor Prism 204%
Palm IIIc 127%
Visor Deluxe 145%
Palm Vx 112%

For day to day tasks, I don't think you can really tell that the Prism is faster than the Palm IIIc. I did a few tests just to get a feel for the differences. The Prism is a little faster at painting the list of apps in the application viewer / launcher. This isn't a significant speed increase though... My next test was to use AportisDoc to search thru a 173k DOC file for the word "joe" which didn't occur anywhere in the file. I did this on both the Prism and Palm IIIc. The Prism completed the test in ~8 seconds while the Palm IIIc completed in ~11 seconds. In another test, I used jFile to sort on three fields of a 56k database of 669 records. The Prism finished the sort in ~4 seconds while the Palm IIIc finished in ~4.1 seconds. So as you can see, there isn't THAT much of a difference in speed with the Prism.

As far as the software goes, you don't get much in the way of bundled goodies. All you do get is a few ROM built-ins.

City Time
This is a clock program that allows you to view the time in several cities around the world. The main screen shows a map of the world.

Calc
Calculator with basic and advanced functions including unit conversions.

Date Book +
Very similar to the regular Date Book app but with extra features such as a week view, year view, and appt. list view.

So, you're wanting a color Palm OS device and don't know if you should buy the Palm IIIc or the Prism. I think the Prism is a nice color unit, don't get me wrong. But, at its current price, I think that the Palm IIIc is really the better deal. However, with that said, I would also say that the Prism is better than the Palm IIIc for 2 reasons. If you currently have a Visor with several Springboard modules that you want to continue to use, buy the Prism. Also, if you want to use your PDA with the Stowaway Folding Keyboard and a Springboard modem at the same time, the Prism is the one to buy.

Either way, both the Palm IIIc and Prism are great color PDAs. Just spend wisely.

Price: $449

Pros:
65,000+ colors
Fast processor
Loud speaker
Springboard slot

Cons:
Thicker and heavier than previous models and Palm IIIc
Digitizer problems ** Fixed with software patch available at Handspring.com
Expensive