Overview & Features
Technical Specifications
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Overview & Features
Brand
PalmOne
Model
Zire 31
Released
2004 Apr 28
Manufacturer
Palm
General Extras
Passive stylus
Hardware Designer
Palm
Technical Specifications
Display
Pixel Size
0.31378 mm/pixel
Resolution
160x160
25600 pixels
Display Area
2520.5 square millimeter
Display Type
Color STN LCD
display
Display Width
50.2 mm
Pixel Density
81 PPI
Display Height
50.2 mm
Display Diagonal
71 mm
Display Color Depth
12 bit/pixel
Display Illumination
Yes
Display Subpixel Scheme
Yes
Display Area Utilization
30.4%
Number of Display Scales
4096
Scratch Resistant Screen
No
Horizontal Full Bezel Width
23.8 mm
Display Light Reflection Mode
Yes
Power Supply
Battery
Lithium-ion
built-in
1-cell
Sound Playing
Audio Output
3.5mm
Loudspeaker(s)
mono
Cellular Phone
Supported Cellular Bands
No
Audio Subsystem
Audio Channel(s)
stereo
Sound Recording
Microphone(s)
No
Auxiliary Camera
Aux. Camera Image Sensor
No
Built-in Sensors
Built-in accelerometer
No
Operative Memory
RAM Type
SDRAM
RAM Capacity
16 MiB RAM
13.8 MiB user accessible RAM
Ingress Protection
Protection from liquids
Yes
Protection from solid materials
Yes
Control Peripherals
Directional Pad
Four-way (with action button)
-way
Touchscreen Type
Resistive touch sensing
screen
Touchscreen Simultaneous Touch Points
Single-touch
Graphical Subsystem
Graphical Controller
N/A
Non-volatile Memory
Non-volatile Memory Type
EPROM
Non-volatile Memory Capacity
4 MiB
Non-volatile Memory Interface
Yes
Physical Attributes
Mass
116 g
Depth
16 mm
Width
74 mm
Height
112 mm
Bounding Volume
132.6 ccm
Multimedia Broadcast
FM Radio Receiver
No
Satellite Navigation
Supported GPS protocol(s)
No
Software Environment
Platform
Palm OS
Operating System
PalmSource Palm OS 5.2
(5.2.8)
Audio/Video Interfaces
A/V Out
No
Auxiliary Camera No. 2
Aux. 2 Camera Image Sensor
No
Auxiliary Camera No. 3
Aux. 3 Camera Image Sensor
No
Auxiliary Camera No. 4
Aux. 4 Camera Focus
No
Aux. 4 Camera Image Sensor
No
Primary Camera System
Flash
No
Focus
No
Camera Image Sensor
No
Geographical Attributes
Market Regions
North America (NA)
Market Countries
USA
Secondary Camera System
Secondary Camera Sensor
No
Communication Interfaces
IR
IrDA 1.2
115200bit/s (SIR/CIR)
USB
USB 1.1
USB Full-Speed (12 Mbps)
Bluetooth
No
Wireless LAN
No
USB Connector
USB Series Mini-B (mini-USB)
Expansion Interfaces
MMC
SD
Secure Digital Input/Output interface
Secondary Cellular Phone
Sec. Supported Cellular Networks
No
Secondary Auxiliary Camera
Sec. Aux. Cam. Image Sensor
No
Application processor, Chipset
CPU
Intel XScale PXA255, 2003, 32 bit, single-core, 32 Kbyte I-Cache, 32 Kbyte D-Cache
CPU Clock
200 MHz
Secondary Auxiliary Camera No. 2
Sec. Aux. 2 Cam. Image Sensor
No
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