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iPhone 4S facts for kids

Kids Encyclopedia Facts
iPhone 4S
IPhone 4S logo.svg
IPhone 4S No shadow.png
Manufacturer Apple Inc.
Units sold Four million in first three days of initial sales (October 14–17, 2011)
Operating system Original: iOS 5.0
Current: iOS 9.3.6, released June 22, 2019 (2019-06-22)
System-on-chip used Dual-core Apple A5
CPU 800 MHz dual-core ARM Cortex-A9
Memory 512 MB DDR2 RAM
Storage 8, 16, 32, or 64 GB (16, 32, and 64 GB discontinued 2013; 8 GB introduced 2013)
Display 3.5 in (89 mm) diagonal 3:2 aspect ratio widescreen
960×640 resolution at 326 ppi (0.61 MP)
800:1 contrast ratio (typical)
500 cd/m2 max. brightness (typical)
Fingerprint-resistant oleophobic coating on front and back glass
Sound Single loudspeaker
3.5 mm TRRS, 20 Hz to 20 kHz frequency response (internal, headset)
3.5mm audio jack
Input Multi-touch touchscreen display
Dual microphone
3-axis gyroscope
3-axis accelerometer
Digital compass
Proximity sensor
Ambient light sensor
Connectivity Wi-Fi (802.11 b/g/n) (2.4 GHz only)
Bluetooth 4.0
Combined GSM/CDMA antenna: quad-band GSM/GPRS/EDGE
(800 850 900 1,800 1,900 MHz)
(800 850 900 1,900 2,100 MHz) (800 MHz unannounced)
Dual-band CDMA/EV-DO Rev. A (800 1,900 MHz)
GLONASS, Global Positioning System (GPS)
Dimensions 115.2 mm (4.54 in) H
58.6 mm (2.31 in) W
9.3 mm (0.37 in) D
Weight 140 g (4.9 oz)
Predecessor iPhone 4
Successor iPhone 5
Related articles iPhone, iPad (3rd generation), iPod Touch

The iPhone 4S is the fifth iPhone that was created by Apple. It is very thin, and has a touchscreen.

It was first available for pre-order on October 7, and it went on sale on October 14 in the United States, Australia, Canada, the United Kingdom, France, Germany, and Japan. It was made available in more countries over the next few months.

The iPhone 4S had the same design as the iPhone 4, but has several new features such as an upgrade to the Apple A5 processor, and an 8 MP camera with 1080p video recording. It shipped with iOS 5, which is the fifth major version of Apple's mobile operating system, iOS. It had new features such as iCloud, iMessage, Notification Center, Reminders, and integration with Twitter. It also had a voice activation system named Siri that was included in later generations of mobile Apple products.


The iPhone 4S introduced a new automated voice control system called "Siri". It first operated only on the iPhone 4S. It allows the user to give commands to the iPhone, which Siri can execute and respond to. For example, iPhone commands such as "What is the weather going to be like?" will generate a response such as "The weather is to be cloudy and rainy and drop to 54 degrees today". These commands can vary greatly and control almost every section of the phone. The commands given do not have to be specific and can be used with natural language. Siri makes it is much easier and/or possible for people to use device functions while driving, exercising, or when they have their hands full. It also means people with trouble reading, seeing, or typing can access the phone more easily.

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