Motorola Droid Rules Android

Motorola’s Droid is the most popular phone among Android users, followed by HTC Hero, while Google’s Nexus One ranks tenth on the list, according to a monthly metrics report from mobile advertising firm AdMob. AdMob has ranked the top ten Android smartphones by market share.

The data is based on 12.7 million Android phones in the AdMob network in May. It’s also why the HTC Evo, released in the first week of June, is missing from the mix.

About 21 percent Android users have the Droid, while 16 percent users own the HTC Hero. Just 2 percent of Android phone users have Google’s Nexus One phone, says AdMob.

Motorola launched the Droid in November 2009 and made it available exclusively on Verizon Wireless. And despite the gaggle of Android phones launched every month, the Droid has been holding strong.

The only Android phone that could challenge the Droid’s position is the HTC Evo, which is available exclusively on Sprint. It will be interesting to see if the Evo can beat the Droid, though Sprint has a smaller marketing budget and fewer subscribers than Verizon.

Here’s a chart that shows the popularity of different Android smarpthones.

About 67 percent of Android users are in North America while China is the second largest market for Android with 13 percent of Android users coming from the country, says AdMob.

Combined HTC and Motorola have 83 percent share among Android devices. Since the Android OS debuted in 2008, the two companies have been on a roll, churning out phones faster than consumers can keep up with.

Last week, Motorola introduced its eleventh Android phone, the Droid X. It was also a big month for HTC, whose Evo phone is the first and only 4G device available currently.