Dear All:

I will be in Geneve for a week later this year. I'm US-based, and as such, I have a TMobile (USA) Samsung S7 Edge phone (soon, in late April, a Samsung S8 or S8+ phone).

As I expect to be arriving on a Saturday in Geneve, and stay through the following Friday, roughly a week, may I ask the good folks here please how best to get a suitable SIM card so as soon as possible, upon arrival, I'll have a working phone?

I'm someone who enjoys having full speedy internet access, and decent call rates to the USA and to Hong Kong (those are the only two areas I expect to call).

Thank you in advance.