Data Roaming in the USA, what are the best options?

[SJMC]

Hi I have an SIM Unlim Data ULD Min on a 12 month contract,  and I am travelling to the USA on Friday 5/1/24 until Wednesday 10th January. I want to be able to use unlimited data for email, social media, instagram my photos. What is the best value option that allows me to do the above and not worry about charges. Did I see a £5 passport option, is there a quick way to purchase and can I buy this in advance of my trip. I’m not interested in making calls back home, just the data. Thank you. 

[sc1999]

You can buy through the my3 app but remember it's 12gb per month, more than that you pay extra. I think it's £5 per day so it may be cheaper just to buy an unlimited SIM when you land. There are sims available on Amazon US.

[tarantella]

Be careful that Three don't charge you twice each day: £5 per day for Go Roam, and another £5 for the Data Passport. That could end up costing you £60 for the 6 days you're there.