IPhone 4S

iPhone 4S

Manufacturer	Apple Inc.
Units sold	Four million in first three days of initial sales (October 14–17, 2011)[1]
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[2]
Memory	512 MB DDR2 RAM[3]
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 LED backlit IPS TFT LCD 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 Microphone
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) Quad-band UMTS/HSDPA/HSUPA (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
Mass	140 g (4.9 oz)
Predecessor	iPhone 4
Successor	iPhone 5
Related articles	iPhone, iPad (3rd generation), iPod Touch
Website	apple.com/iphone-4s/specs/

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

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.^[5]

1. ↑ "iPhone 4S First Weekend Sales Top Four Million" (Press release). Apple Inc. 2011-10-17. Retrieved October 17, 2011.
2. ↑ Toor, Amar (October 11, 2011). "Benchmarks clock iPhone 4S' A5 CPU at 1 GHz, show major GPU upgrade over iPhone 4". Engadget. Retrieved May 16, 2012.
3. ↑ "iPhone 4S Teardown". iFixit. 2011-10-13. Retrieved 2013-12-24. Check out the marking, specifically E4E4, denoting two 2 Gb LPDDR2 die—for a total of 4 Gb—or 512 MB
4. ↑ Topolsky, Joshua (2011-10-04). "iPhone 4S hands-on impressions". The Verge. Retrieved 2024-12-23.
5. ↑ published, Gareth Beavis (2011-12-08). "iPhone 4S review". TechRadar. Retrieved 2024-12-23.