A leaked user manual for the upcoming LG G2 confirms that it will be one of just a few Android-powered devices that support the nano-SIM. It also appears to debunk the reports that have suggested the handset will feature a fingerprint scanner.

The nano-SIM first made its debut with the Apple’s iPhone 5 last fall, but other manufacturers have been pretty slow to adopt it since. Asus became the first Android handset maker to employ it with the Padfone Infinity earlier this year, and then Google launched the Moto X with nano-SIM support last week.

So the LG G2 will become only the third Android smartphone to use the nano-SIM, according to a leaked user manual obtained by NowhereElse.

As for that mysterious button on its back — that’s not a fingerprint sensor as some have suggested, but rather a simple sleep/wake switch. It does other simple things, too, according to NowhereElse, but nothing “revolutionary.”

The manual also reveals the LG G2 will offer 32GB of internal storage, a microSD card slot, and a 2,610mAh removable battery.

LG will announce the G2 at an event in New York City on August 7.

• SourceNowhereElse