Kendo UI Mobile does not feature a Calendar widget, because mobile devices display a calendar / date selector automatically when there is a <input type="date" /> element. One of the purposes of Kendo UI Mobile is to provide native look and feel on mobile devices. Since date inputs provide this already, there is no need to duplicate the look with custom widgets and additional CSS code.
The Calendar indeed pops up in a different fashion on every device, depending on the system defaults.
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