Review: It's not an iPhone 5, but so what? - The San Diego Union-Tribune
Battery fires: keeping the Li-ion caged | Business Aviation News: Aviation International News
iPhone 4S announced, available October 14th starting at $199 - The Verge
Apple releases iOS 8.1.1 w/ bug fixes & performance improvements for iPad 2, iPhone 4s - 9to5Mac
Apple unveils iPhone 4S | CBC News
Apple iPhone 5C vs. iPhone 4S: Battle of the Low-Cost iPhones | PCMag
Apple iPhone 4S 'drains battery' too quickly complaints - BBC News
Apple Reaches Settlement to Pay $15 to Some iPhone 4S Owners Who Experienced Buggy Performance After iOS 9 Update - MacRumors
Apple releases fix for '1970-bricked' iPhones with new beta update | iOS | The Guardian
Apple iPhone 4S Written Review by Taylor | News.Wirefly
Teardown of Apple's iPhone 4S reveals larger battery, new baseband chip | AppleInsider
Amazon.com: LQM 20000mAh Dual USB External Battery Backup Power Bank for Apple iPhone 6, 6 Plus 5S 5C 5 4S 4,iPad Air Mini 2, HTC One, One 2 (M8), Samsung Galaxy S6
Homemade iPhone 4s battery from a 18650 : r/techsupportmacgyver
iPhone 4s - Wikipedia
Homemade iPhone 4s battery from a 18650 : r/techsupportmacgyver
PhoneSuit Elite Battery Case (for iPhone 4 and 4S) Review | PCMag