Palm Centro

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Palm Centro
Manufacturer Palm, Inc.
Compatible networks CDMA2000 (3G),

4.22 × 2.11 × 0.73 in

(107 × 54 × 18.5 mm)
Weight 4.2 oz (119 g)
Operating system Palm OS 5.4.9
CPU 312 MHz Intel XScale PXA270
Memory 64 MB available user storage, 128 MB available user storage (Revision II)
Removable storage microSD up to 4 GB (up to 16 GB with modification)
Battery 1150 mAH Lithium-ion
Display 320×320 65k colors touchscreen
Rear camera 1.3 megapixels with 2× digital zoom
Connectivity EVDO, 1xRTT, Bluetooth, Infrared, USB
Hearing aid compatibility M4/T4 [1]

The Palm Centro is a smartphone that was marketed by Palm, Inc. beginning with its release on October 14, 2007, offering the functionality of the larger Treo 755p in a smaller size.[2]

As of August 2008, the Palm Centro was the second-ranked US smartphone based on internet traffic, responsible for 78% of the traffic on Palm devices;[3] it fell to fourth in February 2009, responsible for 86% of Palm traffic.[4]

The Centro is among the last devices released with the Palm OS operating system, superseded by Palm's webOS, which debuted on the Palm Pre in June 2009.[5]


At a weight of 119 g, and dimensions of 4.2″ (h), 2.1″ (w) and 0.7″ (d), the Centro was the smallest smart phone offered from Palm up to its introduction. It includes a 1.3-megapixel digital camera with video capture capabilities, microSD card slot (supporting up to 8GB microSD cards[6]), touch screen navigation and a QWERTY keyboard. The phone is available with either CDMA technology supporting EVDO Rev 0 for network access, or GSM. The stock battery allows for up to 3.5 hours of continuous talk time. The phone also offers internet connection tethering to laptop or desktop computers.

A A/C travel charger and a USB data cable is Included with the phone.

Palm had subsequently upgraded the available memory to 128 MB. The updated models are available only with Sprint.[7]

The Palm Centro also had support for (Java) MIDP 2.0, though Palm has discontinued distributing it due to licensing.

The product SKU on this model is PTR690HK,[8] which is aligned with products in the Trēo family of Palm smartphones. The Verizon Wireless SKU is CENTRO690P.

Operating system[edit]

The Centro runs Palm OS 5.4.9, and as a result of the backward compatibility aspects of this operating system, many applications released for previous Palm PDA/smartphones work with the Centro. This phone has been streamlined to work with many popular applications and services.[9]



Sprint had marketed the Centro in red, black and pink and released new colors in October 2008, Olive Green and Vibrant Rose. The new model has double the user accessible storage as the preceding model. It also features a rubberized soft-touch coating.


The AT&T version is available in black, white and electric blue. It uses the GSM cellular network for connectivity and does have some differences from Sprint's CDMA version. The GSM-based device is quad-band (850/900/1800/1900 MHz) and supports both GPRS and EDGE data protocols. Even though the Sprint and Verizon versions of the Centro supports 3G (EV-DO), the AT&T version does not.[10] AT&T customers with quad-band devices such as Centro can place calls in more than 195 countries and access data in more than 140.[11]

PC Magazine writes: "The Centro for AT&T sacrifices the Sprint version's high-speed data access, but you get more battery life—though not quite enough. Nonetheless, the low price makes it a good first smartphone."[12]

The AT&T Centro also offers a Push-To-Talk Walkie-talkie like service not available on the CDMA device. This allows you to instantly see the availability of your contacts before calling them and make individual or group Push-To-Talk calls.[13]


The Verizon version of the Centro, available in dark blue only, was released on June 12, 2008 for $99 with a two-year contract and a $70 mail in rebate. This version runs on a 1xRTT/1xEV–DO (Rev.0) 3G network.


Claro introduced the model to Brazilian market by the beginning of 2008. Curiously, the price for the Centro model is still above the old Treo 680 Palm model (as of June 2008).


Telstra Australia sees the Centro offered via PrePaid only.[14] Good Gear Guide writes: "The first smartphone with a full QWERTY keyboard to be sold in Australia on pre-paid". The device is white but unlike the green number pad seen on AT&T's Centro, this version has a grey number pad.[15]

Rogers Wireless[edit]

Rogers Wireless (Canada) announced they would be carrying the Palm Centro as of June 10, 2008. It comes in "Cobalt Blue", the same colour as Verizon's Centro. It is selling at $299.99 for new activations with any three-year voice and data plan activation with minimum $45 monthly service fee or $199.99 with any three-year voice and data plan renewal.

Unlocked GSM[edit]

On June 25, 2008, an Unlocked GSM version of the Centro was released for use on all 850/900/1800/1900 MHz GSM telephone networks. It was released in Glacier White with grey keyboard accents.

Bell Mobility[edit]

As of February 2, 2009, a CDMA version of the Palm Centro in Midnight Black was released on the Bell Mobility network. The phone sold for $49.95 with a new activation on a 3-year $45+ voice and data package. This version runs on a 1xRTT/1xEV–DO (Rev.0) 3G network.


In December 2008, Palm created a holiday advertising campaign, introducing a new version of Santa Claus, called "Claus", and complemented the TV spots with a Facebook page[2], viral videos and original music in download form.[16]


  1. ^ "Palm Support: Hearing Aid Compatibility". Retrieved 2009-10-24. 
  2. ^ Treonauts "The Mini Treo For The Masses"
  3. ^ AdMob Mobile Metrics Report August 2008
  4. ^ AdMob Mobile Metrics Report February 2009
  5. ^ No More PalmOS Devices from Palm. No Patent Fight with Apple (yet) By Dieter Bohn - Feb 11, 2009 - >> Stories >> Commentary >>
  6. ^ [1]
  7. ^ Palm Centro specifications
  8. ^ "Centro at CNET". Retrieved 2007-10-19. 
  9. ^ Wright, A. "Palm Centro Review". Retrieved 2007-10-20. 
  10. ^ Lendino, Jaime. "Palm Centro (AT&T) Review". PC Magazine. Retrieved 2008-03-12. 
  11. ^ "AT&T and Palm Introduce Centro". Retrieved 2008-03-12. 
  12. ^ Lendino, Jaime. "Palm Centro (AT&T) Review". PC Magazine. Retrieved 2008-03-12. 
  13. ^ Cha, Bonnie. "Palm Centro (AT&T) Review". Retrieved 2008-03-12. 
  14. ^ "Palm Centro at Telstra". Archived from the original on 2008-04-30. Retrieved 2008-05-06. 
  15. ^ Catanzariti, Ross. "Palm Centro: A new approach from Palm". Retrieved 2008-05-06. 
  16. ^ "How the Palm Centro Helped Santa Claus Get His Groove Back". Archived from the original on December 11, 2008. Retrieved 2008-12-01. 

External links[edit]