Brand ViewSonic
Model ViewPhone 4s
Released 2012 Aug
Hardware Designer ViewSonic
Manufacturer ViewSonic
Device Category 

Smartphone

Depth N/A
Platform 

Android

Operating System

Google Android 4.0.3 (Ice Cream Sandwich)

CPU Clock 1000 MHz
CPU

ARM Cortex-A9, 2007, 32 bit, single-core, 65 nm

RAM Type 

LPDDR2 SDRAM

RAM Capacity (converted) 512 MiB RAM
Non-volatile Memory Capacity (converted) 4.0 GB ROM
Display Diagonal 89 mm
3.5 inch
Resolution 540×960
Pixel Density 314 PPI
Display Type 

Color IPS TFT LCD display

Scratch Resistant Screen  No
Graphical Controller N/A
A/V Out  No
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 

GPRS
, EDGE
, UMTS
, HSDPA data links

SIM Card Slot 

Yes

Complementary Phone Services 

Voice transmission
, Voice speaker
, Vibrate
, Speakerphone

Dual Cellular Network Operation 

Dual standby operation

Sec. Supported Cellular Networks:  

GSM850
, GSM900
, GSM1800
, GSM1900

Sec. Supported Cellular Data Links:  

GPRS
, EDGE

Sec. SIM Card Slot 

Yes

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 

FM radio (88-108 MHz) with RDS

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

Flash  No
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 Placement 

Front

Secondary Camera Sensor 

CMOS

Secondary Number of pixels 0.3 MP 2nd camera
Sec. Aux. Cam. Image Sensor  No
Built-in accelerometer 

Yes

Protection from solid materials 

Yes

Protection from liquids 

Yes

Battery 

Yes

built-in

1-cell
Data Integrity 

Incomplete