Motorola Mobility sank to a fourth-quarter loss, as it battled fierce competition in the smartphone and computer tablet market.

The company is also trying to close its proposed €9.5 billion sale to Google.

Motorola Mobility Holdings lost €61 million, or 27 cents per share, compared with a profit of €61 million at the same time in 2010. Revenue was flat at €2.62 billion.

The company said adjusted earnings were €46 million or 20 cents per share. Analysts’ expected profit of 26 cents per share and revenue of €2.76 billion, according to Factset.

The company released preliminary numbers three weeks ago. Analysts lowered their earnings estimates then when Motorola warned the period would be a letdown.

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