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Google Android 6.0.1 (Marshmallow), 1400 MHz, Qualcomm Snapdragon 430 MSM8937, 4.00 GiB RAM, 64.0 GB ROM, 1080x1920, 5.5 inch, 13.0 MP cam, 8.0 MP sec. cam, 3000 mAh

Google Android 6.0.1 (Marshmallow), 2020 MHz, Qualcomm Snapdragon 625 MSM8953, 3.00 GiB RAM, 32.0 GB ROM, 1080x1920, 5.5 inch, 12.8 MP cam, 8.0 MP sec. cam, 3300 mAh

Alibaba YunOS 5.1.1, 1800 MHz, MediaTek MT6755 (Helio P10), 3.00 GiB RAM, 32.0 GB ROM, 1080x1800, 5.5 inch, 13.0 MP cam, 5.0 MP sec. cam, 3100 mAh

Google Android 6.0.1 (Marshmallow), 1520 MHz, Qualcomm Snapdragon 617 MSM8952, 3.00 GiB RAM, 32.0 GB ROM, 720x1280, 5 inch, 13.0 MP cam, 8.0 MP sec. cam, 2600 mAh

Google Android 6.0.1 (Marshmallow), 2290 MHz, Samsung Exynos 8 Octa 8890, 4.00 GiB RAM, 64.0 GB ROM, 1440x2560, 5.7 inch, 12.2 MP cam, 5.0 MP sec. cam, 3500 mAh

Alibaba YunOS 5.1.1, 1800 MHz, MediaTek MT6755 (Helio P10), 3.00 GiB RAM, 32.0 GB ROM, 1080x1800, 5.5 inch, 13.0 MP cam, 5.0 MP sec. cam, 3100 mAh

Acer n311

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General Attributes

Released 2005 Dec
Hardware designerThe company which designed this device Wistron Corporation
ManufacturerThe company which produces this device Wistron Corporation
Device Category:  PDAPersonal Digital Assistant is a palm-sized, touchscreen mobile computer which is able to natively run third-party apps. It has neither cellular modem nor large-scaled physical keybaord.

Physical Attributes

WidthWidth is horizontally measured between the left and right edges of device according to the default display orientation 70 mm
HeightHeight is vertically measured between the bottom and top edges of device according to the default display orientation 110 mm
DepthDepth or thickness is usually the smallest dimension of the device 13.7 mm
DimensionsAll dimensions are maximal values (measured between the furthest points of the device) in closed state 2.76x4.33x0.54 inches
MassThe mass of the device including standard battery and stylus (if any and it can be inserted into the device) measured in grams 135 g
4.76 ouncesThe mass of the device including standard battery and stylus (if any and it can be inserted into the device) measured in ounces

Software Environment

Embedded Operating SystemPre-installed operating system which the device was released with. Microsoft Windows Mobile 5.0 for Pocket PC Premium Edition (Magneto)Microsoft Windows Mobile 5.0 for Pocket PC Premium Edition (Magneto)
Operating System KernelThe OS kernel is the primary component of an operating system which manages hardware and software resources, schedules tasks and threads and provides interface for the upper software layers (system calls, interrupts, APIs, etc.) 5.1.1702 Build 14367.1.0.2

Application processor, Chipset

CPU ClockFrequency of the square signal which schedules the internal operation of microprocessor (synchronous sequential logic). The current consumed by the processor is approximately proportional to clock rate. 400 MHz
CPUManufacturer part number of the IC which includes the main application processor os processors Samsung S3C2440, 2003, 32 bit, single-core, 16 Kbyte I-Cache, 16 Kbyte D-CacheSamsung S3C2440, 2003, 32 bit, single-core, 16 Kbyte I-Cache, 16 Kbyte D-Cache

Operative Memory
RAM TypeType of volatile memory IC which specifies RAM architecture, timing characteristics, refresh mode, voltage levels and physical design of the IC. Two major types of random-access memory is static RAM (SRAM) periodically refreshed dynamic RAM (DRAM). SDRAM
133 MHzClock frequency of the RAM databus (not necessarily equivalent to data transfer frequency). The width of the databus (e.g. 64 bit), RAM type (e.g. DDR SDRAM) and clock rate (e.g. 200 MHz) determines peak transfer rate (25.6 Mbit/s)
RAM Capacity (converted)RAM capacity in binary bytes (KiB: 1024 bytes, MiB: 1024 KiB, GiB: 1024 MiB) 64 MiB RAM
57.83 MiB user accessibleRAM space that unprotected system and user tasks can access

Non-volatile Memory
Non-volatile Memory TypeType of NV memory IC which determines storage technology, programming / erasing method and write endurance Flash EEPROM
Non-volatile Memory Capacity (converted)The value of ROM capacity converted to the most appropriate units (KiB: 1024 bytes, KB: 1000 bytes, MiB: 1024 KiB, MB: 1000 KB, GiB: 1024 MiB, GB: 1000 MB) 128 MiB ROM
85.13 MiB free user storageUser-accessible partition of non-volatile storage space
Total non-volatile user storageThe sum of primary and secondary user-accessible partition of non-volatile storage spaces 85.13 MiB total user storage

DisplayAll parameters that related to display

Display ResolutionHorizontal and vertical resolution of the primary display 480x640
Display DiagonalThe distance measured between the furthest corners of the display 94 mm
3.7 inch
Horizontal Full Bezel WidthDefined as the sum of width of left and right vertical display bezels. If the display panel is located in the middle width of left and right bezels are the same and their width is the half of the full bezel width. 13.6 mm
Display Area UtilizationDisplay area per front panel area ratio 55%
Pixel DensityIndicates the number of pixels per inch 216 PPI
Display TypeDisplay Type Color TN-TFT LCDColor TN-TFT (Twisted Nematic - Thin Film Transistor). This is an active matrix LCD technology.
Number of Display Colors/ScalesMaximal number of displayable colors or scales 65536
Display Subpixel Scheme:  RGB MatrixEach pixel has 3 subpixel (Red, Greed, Blue) with the same size. The subpixel order is often R-G-B but B-G-R is also used.
Scratch Resistant Screen:  No

Graphical Suybsystem

Audio/Video Interfaces
A/V OutBuilt-in Audio/Video outputs (A/V out) form a very heterogeneous group of interfaces that allow the user to connect the mobile device to various external analog/digital multimedia devices (monitors, projectors, TVs, HD TVs) and play multimedia content. No

Audio Subsystem

Microphone(s):  mono
Loudpeaker(s):  mono

Cellular Phone

Supported Cellular NetworksList of supported cellular networks with band names. For example GSM900 refers to the GSM system with the 890-915 MHz uplink and 935-960 downlink bands. No

Secondary Cellular Phone
Sec. Supported Cellular Networks:  No

Control Peripherals

Touchscreen TypeDetermines how the touchscreen module senses the touch of the screen Resistive
Touchscreen Simultaneous Touch PointsDetermines how many touches the touch-sensitive screen module is able to simultaneously detect Single-touch
Directional PadA four-way mechanism that allows the selection of certain on-screen objects 5-way

Communication Interfaces

Expansion InterfacesNon-volatile memory and/or I/O expansion interfaces MMC, SDSupports memory cards with capacity of up to 2GB and may comply with some (not SD 2.0/HC) memory cards with higher capacity than 2GB, SDIOSupports peripheral devices inserted into SD card slot.
USBUSB is a common high-speed serial bus standard that allows data and power transfer between the mobile device and another computer. Version of USB identifies USB standard. USB 1.1USB 1.1 specification was released in August 1998 as the first widely applied USB standard.
USB Speed Rate:  USB FS (12 Mbps)
USB Services:  USB HostUSB host devices are capable of controlling USB client devices, like mass storage devices, mouse, keyboard, camera, printer, scanner, etc., USB power supplyDevice which meets USB Battery Charging Specification Revision 1.1 is able to supply current from 500 mA to 1.5 A for the client device.
USB Connector:  Proprietary
BluetoothIEEE 802.15 is a short-range radio technology standard that allows transfer of data, and the use of accessories such as wireless audio devices and printers. Bluetooth 1.2
Wireless LANWireless LAN / WLAN / Wi-Fi: 802.11 defines a medium-range wireless data link that allows for internet access and data transfer 802.11b
SerialUART RS-232
Serial Connector:  Proprietary
Serial Data Rate:  115200 bps

Multimedia Broadcast

Analog Radio Receiver:  No

Satellite Navigation

Built-in Digital CameraPrimary camera usually has better imaging capabilities than secondary camera if any

Camera Image SensorRefers to the semiconductor technology of image sensor No
Focus:  No
Auxiliary LightA flash is used to brighten dark areas when taking photographs; is also used as a flashlight No

Built-in Secondary Digital CameraWidely used for video telephony or taking selfies

Secondary Camera Sensor:  No

Power Supply

BatteryBattery technology Lithium-ion
Battery Capacity 1200 mAh
Estimated Average CurrentEstimated Average Current is derived from battery life and battery capacity. This current is consumed while the device is used in the following state: screen backlight on (mid-level), phone (if any) on, no phone calls, no multimedia, continuous user input 171 mA
Estimated Battery Life 7 hours

Ingress Protection

Protection from solid materials:  Yes
Protection from liquids:  Yes

Built-in Sensors

Datasheet Attributes
Data IntegrityData integrity level determines the integrity of the published information. Final datasheets are not intended to be modified in the future, preliminary ones can be based on unofficial information or speculations, incomplete ones are also preliminary b Final