Apple iPhone 4s APN settings & network compatibility in United States
Apple iPhone 4s network specifications
| OS | iOS 5, upgradable to iOS 9.2 |
| Network bands | GSM / CDMA / HSPA / EVDO |
| Speed | HSPA 14.4/5.76 Mbps |
| Network frequencies | GSM 850 / 900 / 1800 / 1900 HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO |
| SIM | Micro-SIM |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot |
| CPU | Dual-core 1.0 GHz Cortex-A9 |
| RAM | 0.5 GB |
| Internal memory | 8 GB |
