South Africa has a vast mobile phone network with 4G, 3G and GSM digital networks. If you plan to use your mobile phone while traveling in South Africa, research international data roaming charges along with potential call costs. Make sure your phone is equipped for South Africa's digital networks and is unlocked for international travel.  If your phone is unlocked and compatible, it is possible to purchase a pay-as-you-go SIM card.  If you plan to leave your mobile phone at home, another option is to purchase kits with a phone equipped with a prepaid SIM card. However, South Africa requires an ID and proof of South African address to purchase and register a SIM card. Your proof of address may be a signed statement from your accommodation or host or an accommodation receipt.   For internet, you won't find it difficult to access the internet in South Africa, though connections aren't always the fastest. Most accommodations offer internet access, though look for the (W) symbol to look for places that offer wi-fi.