Understanding When "4G" isn't 4G

Not All "4G" is Equal

Most carriers are lying to you. I find it a bit insulting, here is what you need to know to make informed decisions about 4G.

The term "4G" is overused, abused, and throughly misleading... thanks to the carriers. Real 4G networks are Long Term Evolution (commonly referred to as LTE) and WiMax (which Sprint is repurposing for prepaid 4G service only). Fake 4G, referred to by most geeks as 3.5G, is HSPA+ and is almost entirely what AT&T and entirely what T-Mobile rely on and call "4G".

You probably recognize "LTE" from Verizon commercials, that is because they're the only carrier that isn't lying to you about their 4G coverage. Here's what I mean... (iPhone 4S users, there's a section specially for you below.)

AT&T

AT&T claims to have the "largest 4G network." This conveniently avoids defining what they mean by "4G" because their coverage isn't actually 4G, it is 3.5G or HSPA+. Here are the coverage maps to compare AT&T vs. Verizon on their 4G LTE coverage.

AT&T 4G LTE Coverage

Verizon 4G LTE Coverage

It is worth mentioning that the places where AT&T has LTE coverage, it is very fast and reportedly satisfactory, same as Verizon.

T-Mobile

The lies don't stop there, T-Mobile has no 4G LTE coverage to speak of, they plan to start building it in 2013.

T-Mobile tries to sell their "4G" network (actually 3.5G) by comparing to other carriers. There's just one problem, they aren't comparing apples to apples. In this head-to-head with Verizon, they compare the Samsung Galaxy SII (T-Mobile) to the iPhone 4S (Verizon). They cover themselves legally by noting this in the fine print, but who reads that? The iPhone 4S on Verizon is a 3G device ONLY. There is no LTE support on the iPhone 4S, and Verizon doesn't have an HSPA+ network (which the iPhone 4S does support if the network does). They compare 3.5G HSPA+ to 3G CDMA, there is no relevant comparison to be made. I call bullshit.

iPhone 4S Users, What You Need to Know

I get the confused questions quite frequently with the iPhone 4S regarding 3G/4G support. The iPhone 4S supports HSPA+, which AT&T has and calls 4G. Verizon doesn't have an HSPA+ network, so Verizon iPhone 4S owners never see "4G" in their status bar. However, AT&T iPhone 4S owners do frequently see "4G" in their status bar. I hope the above article helps to clarify why that is. The iPhone 4S does not support 4G LTE, so when your iPhone 4S reads "4G" it is really 3.5G.

Closing Comments

HSPA+ isn't a bad technology and it doesn't result in slow crummy internet connections. It is quite the opposite in fact. I have no qualm with HSPA+ and I like that AT&T customers have that to fall back on before falling back yet again onto 3G. I just dislike the lack of clarity and false inflation of terms to try to sell you things that aren't accurate.

The argument on the flip side of the coin is that HSPA+ speeds are closer to 4G than to 3G, this is true. I saw HSPA+ called "3.75G" rather than 3.5G, and that might be a more accurate term.

What it all comes down to is understanding the network you rely on all day every day. This can save you money and will hopefully save you from the dreaded (biased as hell) salesmen at the carrier's stores.

I'd love to hear your thoughts/counter-arguments in the comments.