Brand ViewSonic
Model ViewPad 4
Released 2011 Jun
Device Category 

Smartphone

Depth N/A
Platform 

Android

Operating System

Google Android 2.2.1 (Froyo)

Software Extras 

Navigation software

CPU Clock 1000 MHz
CPU

Qualcomm Snapdragon S2 MSM8255, 2010, 32 bit, single-core, 256 Kbyte L2, 45 nm, Qualcomm Adreno 205 GPU

RAM Type 

Yes

RAM Capacity (converted) 512 MiB RAM
Non-volatile Memory Capacity (converted) 2.0 GB ROM
Display Diagonal 104 mm
4.1 inch
Resolution 480×800
Pixel Density 228 PPI
Display Type 

Color TN-TFT LCD display

Scratch Resistant Screen  No
Graphical Controller Qualcomm Adreno 205
Dedicated Graphics Memory 0.25 MiB
A/V Out 

HDMI 1.4

HDMI D Micro

Microphone(s) 

mono

Loudpeaker(s):  

mono

Audio Output:  

3.5mm

Supported Cellular Bands 

GSM850
, GSM900
, GSM1800
, GSM1900
, UMTS2100 (B1)
, UMTS900 (B8) bands

Supported Cellular Data Links 

CSD
, GPRS
, GPRS C12
, EDGE
, UMTS
, HSUPA
, HSUPA 5.8
, HSDPA
, HSDPA 7.2
, HSPA+ 21.1 data links

SIM Card Slot 

Yes

Complementary Phone Services 

Voice transmission
, Voice speaker
, Vibrate
, Speakerphone

Sec. Supported Cellular Networks:   No
Touchscreen Type 

Capacitive multi-touch screen

Expansion Interfaces 

TransFlash
, microSD
, microSDHC

USB 

USB 2.0

USB HS (480 Mbps)

USB Services 

USB charging

USB Connector 

USB Micro-B (Micro-USB)

Bluetooth 

Bluetooth 2.1 + EDR

Wireless LAN 

802.11b
, 802.11g
, 802.11n

FM Radio Receiver  Unknown
Complementary GPS Services 

A-GPS
, Geotagging

Camera Placement 

Rear

Camera Image Sensor 

CMOS

Number of effective pixels 4.9 MP camera
Zoom 1.0 x optical zoom
Focus 

CD AF

Video Recording 1280×720 pixel
30 fps
Flash 

single LED

Camera Extra Functions 

Macro mode

Aux. Camera Image Sensor  No
Aux. 2 Camera Image Sensor  No
Aux. 3 Camera Image Sensor  No
Aux.4 Camera Image Sensor  No
Secondary Camera Sensor  No
Sec. Aux. Cam. Image Sensor  No
Built-in accelerometer 

Yes

Protection from solid materials 

Yes

Protection from liquids 

Yes

Battery 

Yes

removable

1-cell
Data Integrity 

Incomplete