Apple iPhone 4s - 16GB - iOS 7.1.2 - White (Verizon) 885909528912 | eBay
iPhone 4S clocked at 800MHz, still crushes iPhone 4 (and everyone else) as advertised - 9to5Mac
Performance Benchmarks, Imaging, Battery Life & Conclusion : Apple iPhone 6s & 6s Plus review: You think you know them, but you don't - HardwareZone.com.sg