Staying connected to your friends, family, and co-workers when out at sea is invaluable for seafarers. Let’s take a look at some of the best travel SIM cards and what they have to offer the modern seafarer. — We looked at some of the travel SIM on the market used by Seafarers, and we found some big variance in the cost of a Gigabyte. Like all SIM cards, these do not work while out to sea and you will need to be in range of a mobile network…