Updated from 6:20 a.m. ESTESPOO, Finland ( TheStreet) -- Nokia ( NOK), the world's top handset maker, said fourth-quarter operating profit fell 23% to €884 million ($1.21 billion) from €1.14 billion a year earlier despite a sales increase of 6%. Nokia said Thursday "growth trends in the mobile devices market continue to be encouraging." On a per-share basis, earnings were €0.20 vs. €0.26. Nokia said fourth-quarter sales were €12.65 billion vs. almost €12 billion a year earlier. Devices and services sales in the quarter were €8.5 billion, up 4% from a year earlier. Nokia said it expects devices and services net sales of between €6.8 billion and €7.3 billion in the first quarter of 2011. Nokia total mobile device volumes in the fourth quarter were 123.7 million units, down 3% from a year earlier and 12% sequentially. Nokia said its estimated market share shrunk to 31% in the quarter, down from 35% a year earlier. -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: firstname.lastname@example.org.