When you look at your iPhone cell signal, you’ll probably mostly see 4G or 5G – and sometimes 3G.
But you may also see the letter E, or its full name: EDGE.
It doesn’t stand for Emergency as some people think, but instead is an acronym that means Enhanced Data rates for GSM Evolution.
It’s quite a mouthful, which explains why it’s reduced to E for short.
EDGE is actually a type of 2G mobile data, and dates back to the times before widespread 3G rollout – so it’s sometimes known as 2.75G.
Deployment began around 2003, so EDGE is heavily capped in terms of what it can offer you.
It can only provide a few hundred kilobits of data per second.
That’s hardly enough to browse the internet properly, never mind stream on the YouTube app.