@iteles' uncle Mike is about to retire and has been saving up (for a while) for his "round-the-world-trip" ...
He is going to be away from the UK for over a Year!! 😮
and wants to know what the best mobile operator is for his travels.

• Limited Phone calls and SMS
• Uses "WhatsApp" a lot for messages, images and VoIP calls
• Will be sending emails with photos

Which are the best operators for both quality (first) and price (second) ?
Fairly certain this overlaps considerably with the research that "Digital Nomads" do before they head out on their travels, so any insight would be very much appreciated! thanks!