Apple iPhone 4S - Assorted Colors & Sizes (Refurbished)
❤99% New ❤ Apple iPhone 4s - 64GB - White (AT&T) A1387 (CDMA + GSM) 885909537990 | eBay
iPhone 4S - Technical Specifications - Apple Support
Is the iPhone 4S's battery actually better than the iPhone 4's despite having less standby time? - Quora
Amazon.com: MFI-Apple Certified - ibattz Mojo Vogue Removable Battery Case for iPhone 4 and 4S White 1700mAhX2 fits all version of iPhone 4S/4 : Cell Phones & Accessories