To simulate the actual devices' resolutions you may use Google Chrome's Developer Tools. * First you need login to your salesforce account. * Once logged in then goto https://<yourinstance>.salesforce.com/one/one.app * Replace <yourInstance> with your instance (e.g: na4.salesforce.com/one/one.app). You'll see the equivalent of the Salesforce1 mobile app within your window. * Now goto Tools or More Tools => Developer tools in your google chrome. * There you can see a mobile device icon.
* Click on that and you see a nice canvas with Device picklist option to select a device.
* First you need login to your salesforce account.
* Once logged in then goto https://<yourinstance>.salesforce.com/one/one.app
* Replace <yourInstance> with your instance (e.g: na4.salesforce.com/one/one.app). You'll see the equivalent of the Salesforce1 mobile app within your window.
* Now goto Tools or More Tools => Developer tools in your google chrome.
* There you can see a mobile device icon.
* Click on that and you see a nice canvas with Device picklist option to select a device.
Amrik you can add the below plugin for this purpose to your chrome
ThanksSalesforce1 Simulator