iPhone 4S (2011)

iPhone 4S (2011): A5 chip, 8 MP camera and the debut of Siri; the last iPhone introduced in Steve Jobs' lifetime.

Front · Back · Provisional illustration

Specs

Reference	—
Chip	A5
Highlight	Siri
Release	2011-10-14
Display	3.5″ · 960×640
RAM	512 MB
Price	199 / 299 / 399 USD

Launch

Announced on 4 October 2011 at the “Let's Talk iPhone” event on Apple's campus, Tim Cook's first as CEO; Steve Jobs died the following day. Pre-orders opened on 7 October (one million in 24 hours) and sales began on 14 October at USD 199, 299 and 399 (16, 32 and 64 GB) on contract. A record 4 million in its first weekend. The 32 and 64 GB versions were discontinued on 12 September 2012, the 16 GB on 10 September 2013 and the 8 GB on 9 September 2014.

Marketing

“The most amazing iPhone yet.” It debuted the dual-core A5 chip, an 8 MP camera with new optics and 1080p video, and above all Siri, the voice assistant exclusive to this model (the “s” in 4S, in Cook's own words). It shipped with iOS 5 (Notification Center, iMessage) and iCloud.

Flaws and fixes

Battery life fell short of expectations with iOS 5; Apple released iOS 5.1.1 to diagnose and address the issue, though it did not fully resolve it. The last supported version was iOS 9.3.6 (July 2019).

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Updated: October 24, 2026 · Compare this product