Check out all these Apple knockoffs at the biggest mobile conference in the world

Apple isn't at the biggest mobile conference of the year, the Mobile World Congress in Barcelona, but its influence certainly is.

The halls of the Fira Barcelona convention center are littered with devices that look very similar to Apple's latest gadgets, the iPhone 6, iPhone 6 Plus, and iPad Air.

What's interesting is this wasn't the case a year ago at the same conference. As Business Insider's Jay Yarow noted at the 2014 Mobile World Congress, a lot of manufacturers were copying Samsung's devices. But a year can make a big difference.

Since then, Apple caught up with the rest of the smartphone industry and released its two new big-screen iPhones, which helped it have its biggest quarter ever at the end of 2014. Meanwhile, Samsung has slipped, thanks to increased competition from Android phone makers like Xiaomi that make phones just as good as Samsung's but sell them at half the price.

Competitors, mostly Chinese Android phone manufacturers, have noticed.

Take a look at what we found roaming the halls of MWC:

Here's an iPad Air lookalike from the Turkish company Vestel:

The back:

This phone running the Ubuntu operating system has edges similar to the iPhone 6:

Chinese manufacturer Hisense didn't copy the iPhone 6, but this phone does look a lot like the iPhone 5:

ZTE has a phone and phablet that look like the iPhone 6 and iPhone 6 Plus:

It even has "6 Plus" in the name!

Here's a phone from Lenovo. The bottom looks similar to the iPhone 6:

Huawei's phones don't look like the iPhone, but the name sure does: