Sales of Google’s smartphone Nexus One are lagging behind Droid’s of Motorola and the first generation iPhone’s, according to analytics firm Flurry.

Sales figure of Nexus One in the first 74 days of availability stood at 135,000 units, against one million of iPhone’s and 1.05 million of Droid’s, Flurry said.

Flurry took the 74-day benchmark, because Apple had recorded sales of 1 million units of iPhone in the said period.

The research firm further said that Nexus One sales continue to pale in comparison to iPhone1G and Motorola Droid, with each besting Nexus One sales by roughly 8 times over the same time period.

The comparison among Nexus One and iPhone is interesting because the iPhone and Nexus One each represent Apple and Google’s first fully branded handsets, respectively. The Motorola Droid was added to the comparison, because it is the fastest selling Android-based phone to date, Flurry said in a blog post.

Droid tops the sales chart as its sales in the first 74 days were lifted by the Christmas holiday season, which is the highest selling period of the year for handsets. Neither iPhone 1G nor Nexus One’s first 74 days spanned a holiday period, it said.

According to the author of the blogpost, Peter Farago, “As Google and Apple continue to battle for the mobile marketplace, Google Nexus One may go down as a grand, failed experiment or one that ultimately helped Google learn something that will prove important in years to come.”

Farago further said that “For Android to make progress faster, from a sales perspective, it needs more Droids and fewer Nexus Ones going forward.”

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