Don't think there is an out-of-box functionality for that, if you wish to go for an app: try the following http://www.companionlink.com/android/salesforce/
Indirect way tried by some customers: you can sync your phone with your email client(ifor e.g. outlook) and then sync Outloo with Salesforce using Salesforce for Outlook.https://help.salesforce.com/apex/HTViewQuickStarts?id=000113374&language=en_US
Indirect way tried by some customers: you can sync your phone with your email client(ifor e.g. outlook) and then sync Outloo with Salesforce using Salesforce for Outlook.https://help.salesforce.com/apex/HTViewQuickStarts?id=000113374&language=en_US