Jo'Burg has crime issues. All the homes are like barracks, high as hell with barb wires on top. Don't talk on the phone while walking or leave it in plain sight in a car or talk on the phone at a red light. You know the country's weather is actually the reverse of North America. It's actually summer temperatures right now while if you go in June, it's cold. Just use common sense you will be alright.
I'm going in April so idk what to expect. Lol, nices homes in Nigeria are like that as well. Individually fenced with either barbed wire or electrical wiring. People don't play those games.
Good looks in the phone part. In places in Lagos, once night falls I don't take my phone out. In crowded places keep your hands in your pockets. I got my phone picked off that way before.