Screen size
Centro2.3"
Treo ProWinner: 2.5"+10%
Quick verdict
Treo Pro leads the measured specs 5-3.
Measured wins
Centro
3
spec wins
Ties
3
equal specs
Treo Pro
5
spec wins
Overall winner
Screen size
Technology
Centro
GSM
Treo Pro
GSM / HSPA
2G bands
Centro
GSM 850 / 900 / 1800 / 1900
Treo Pro
GSM 850 / 900 / 1800 / 1900
GPRS
Centro
Class 10
Treo Pro
-
EDGE
Centro
Class 10
Treo Pro
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
5G support
equal specsNFC
3.5mm jack
SD card
equal specsStereo speakers
-
3G bands
Centro
-
Treo Pro
HSDPA 850 / 1900 / 2100
Speed
Centro
-
Treo Pro
HSPA
Announced
Centro
2008, February. Released 2008, March
Treo Pro
2008, August. Released 2008, October
Status
Centro
Discontinued
Treo Pro
Discontinued
Dimensions
Centro
107.2 x 53.5 x 18.6 mm (4.22 x 2.11 x 0.73 in)
Treo Pro
114 x 60 x 13.4 mm (4.49 x 2.36 x 0.53 in)
Weight
Centro
124 g (4.37 oz)
Treo Pro
133 g (4.69 oz)
Keyboard
Centro
QWERTY
Treo Pro
QWERTY
SIM
Centro
Mini-SIM
Treo Pro
Mini-SIM
Type
Centro
TFT resistive touchscreen, 65K colors
Treo Pro
TFT resistive touchscreen, 65K colors
Size
Centro
2.25 inches, 16.3 cm2 (~28.5% screen-to-body ratio)
Treo Pro
2.5 inches, 20.2 cm2 (~29.5% screen-to-body ratio)
Resolution
Centro
320 x 320 pixels, 1:1 ratio (~201 ppi density)
Treo Pro
320 x 320 pixels, 1:1 ratio (~181 ppi density)
Other
Centro
5-way navigation button
Treo Pro
5-way navigation button
OS
Centro
Palm OS 5.4.9
Treo Pro
Microsoft Windows Mobile 6.1 Professional
CPU
Centro
32-bit Intel XScale PXA270 312 MHz
Treo Pro
528 MHz ARM 11
Chipset
Centro
-
Treo Pro
Qualcomm MSM7201
GPU
Centro
-
Treo Pro
Adreno 130
Card slot
Centro
microSDHC (dedicated slot)
Treo Pro
microSDHC (dedicated slot)
Internal
Centro
64MB
Treo Pro
100MB 128MB RAM
Single
Centro
1.3 MP
Treo Pro
2 MP
Video
Centro
Yes
Treo Pro
Yes
Other
Centro
No
Treo Pro
No
Loudspeaker
Centro
Yes
Treo Pro
Yes
Alert types
Centro
Vibration; Downloadable polyphonic ringtones
Treo Pro
Vibration; Downloadable polyphonic, MP3 ringtones
3.5mm jack
Centro
No
Treo Pro
Yes
WLAN
Centro
No
Treo Pro
Wi-Fi 802.11 b/g
Bluetooth
Centro
1.2, A2DP
Treo Pro
2.0, A2DP
Positioning
Centro
No
Treo Pro
GPS
Infrared port
Centro
Yes
Treo Pro
Yes
Radio
Centro
No
Treo Pro
No
USB
Centro
Proprietary
Treo Pro
microUSB
Sensors
Centro
Treo Pro
Browser
Centro
WAP 2.0 / HTML (Blazer 4.5)
Treo Pro
WAP 2.0 / HTML (PocketIE)
Other
Centro
Document editor (Word, Excel, Powerpoint, PDF) MP3 player Organizer Voice memo
Treo Pro
Organizer Pocket Office Voice memo
Type
Centro
Removable Li-Ion 1150 mAh battery
Treo Pro
Removable Li-Ion 1500 mAh battery
Stand-by
Centro
Up to 300 h
Treo Pro
Up to 250 h
Talk time
Centro
Up to 4 h
Treo Pro
Up to 5 h
Colors
Centro
Obsidian, Glacier, Midnight, Cobalt, Onyx, Electric Blue, Rose, Olive
Treo Pro
Obsidian
SAR
Centro
0.27 W/kg (head) 0.22 W/kg (body)
Treo Pro
0.60 W/kg (head) 0.87 W/kg (body)
Price
Centro
About 70 EUR
Treo Pro
About 70 EUR
SAR EU
Centro
-
Treo Pro
0.75 W/kg (head) 0.53 W/kg (body)