I was working with my sister's Centro today, and the following is a review of the white hot selling consumer-oriented Palm smartphone. I use a Palm Treo 755p and Treo 750 and will be comparing the Centro with those two devices.
The Centro runs Palm's Palm OS operating system, version 5.4.9; which is the same version that Palm is using in the latest Palm OS Treo, the 755p. The Centro that I am working with has already been upgraded to the latest software maintenance release, 1.07, which can be downloaded from the Palm website as a free download.
Because the Centro runs Palm OS, you can run the thousands of existing Palm OS application that are available today. If you are upgrading from a Palm OS Tungsten or Zire PDA, your transition to the Centro should be a smooth one. If you have an older Palm OS PDA, the transition to the Centro is possible, however, I encourage anyone who has installed third-party application software to upgrade to the latest release before doing so to make sure that all of your software is compatible with Palm OS 5.
The Cento is smaller than previous Palm smartphones. Althought the size difference is not dramatic, the rounded edges of the Cento make it seem smaller when you are holding it in your hand. Slipping it into and out of the front pocket of a pair of jeans will be ease.
Unlike the Treo 750 and 755p, the original model Centro smartphones do not have the rubberized soft-touch paint. In my opinion, this is one of the few negatives of the Centro. I really like the soft-touch paint as it helps me keep a firm grasp on the device while I am using it. Starting with the newest Sprint Centro models, olive green and vibrant rose, Palm has returned to using the soft-touch paint.
As with previous smartphones, the Centro also includes a full Qwerty keyboard. The keys on the Centro are smaller than those on the Treo, however, the jelly style key caps make it easy for people to type on the keyboard, even if you are used to the Treo's keyboard or if you have big mits like me.
Nesseled in between the bright touch-screen and the keyboard are the standard hardware buttons Palm's customers have come to expect: Phone, Calendar, Home, Email, Call Send/Recevie (the green button) and Call End/Power (the red button). The center button, which is used to navigrate around the screen and select objects, is right in the center of the device and easily accessible with your thumb. Along the top of the device is the ringer switch for silencing your phone quickly; a feature I wished more people would us during meetings.
Rounding out the hardware features of the Centro is the digital camera on the back of the device mounted along side of the speaker. The 2.5mm headset jack, sync and power ports can be found on the bottom edge. An IR port has been placed on the right side of the body, and on the left are the volume up and down buttons and the Voice Memo button.
Each of the application hardware buttons can be reprogammed by using the Buttons control panel which is found in the Prefs application. (Press Home, and then tap or select the Prefs application in the Palm OS Application launcher.)
The Centro does come with a stylus, but I'm not excited about it. The stylus is an anemic piece of brittle plastic that feels like it will break if I hold it too hard. The bottom third of the Treo 750 and 755p is metal, but I long for the days of the Treo 650 and 700p when the stylus was mostly metal.
The Centro uses a 1150mAh battery that held up well while I was using it. (I had the device for about 90 minutes.) During that time, I was constantly checking email, downloading software updates, and browsing the web. If you plan on using all of the phone's features (phone calls, email, organizer applicaitons, and Office documents) you will likely need to charge the phone up everynight. Casual users, who don't talk on the phone alot will be able to get a few days out a single charge. Milage will vary.
The Centro also has a microSD card slot, which unlike the Treo 750 and 755p, is only accessable by removing the battery compartment door. This won't be a problem for most Centro owners unless they have multiple expansion cards that you need to swap in an out.
Centro comes with all of the software you would expect to find on a $99 phone and then some. I was really happy to see that Palm was including all of their standard Treo software on the Centro. In addition to Contacts, Calendar, Tasks, and Memos, standard fare for a feature flip phone, the Centro also includes a web browser (Blazer 4.5.8), an email application (VersaMail 4.0.1) and the ability to read/write Microsoft Office files (DataViz Documents To Go 10.0 Professional). From a software perspective, there isn't anything a Centro can't do that a Treo 755p can. When you buy a Centro, you are buying a full featured smartphone compared with the other devices in the Centro's price range ($79 - $149).
The Centro, available from Verizon, Sprint, AT&T, and unlocked, typically sells for $79 - $99. However, deep discounts and mail-in rebates either from Palm or your wireless carrier, and with a new 2-year service agreement can bring the price of the Centro down much lower.
As indicated earlier, the Centro does come in a variety of colors, however, not all of the colors are available to all of the wireless carriers. The Sprint edition Centro I was able to use was ruby red. Centro is also available in cobalt blue, electric blue, obsidian black, glacial white, olive green, vibrant rose, and pink.
The Centro is a full featured smartphone that isn't hard on your checkbook. It is a great phone to upgrade to from a feature phone if you are looking for a better web, email, and text messaging experience. The call quality is good as was the signal strength in my neighborhood.
There are some aspects of the hardware that I would have changed, however, I don't think that they are reason enough to pass up on this phone. The inclusion of the full install of the Palm OS means, and all of Palm's bundled productivty and entertainment software, gives you the same functionality as Apple's iPhone without the added cost.
For more details on Palm's wildly popular Centro smartphone, visit Palm's Cenro website.