diff --git a/QtPyLoT.py b/QtPyLoT.py
index e8709d0c..f3c21ba7 100755
--- a/QtPyLoT.py
+++ b/QtPyLoT.py
@@ -42,6 +42,7 @@ from obspy import UTCDateTime
 from pylot.core.io.data import Data
 from pylot.core.io.inputs import FilterOptions, AutoPickParameter
 from pylot.core.pick.autopick import autopickevent
+from pylot.core.pick.compare import Comparison
 from pylot.core.io.phases import picksdict_from_picks
 from pylot.core.loc.nll import locate as locateNll
 from pylot.core.util.defaults import FILTERDEFAULTS, COMPNAME_MAP, \
@@ -53,7 +54,8 @@ from pylot.core.util.utils import fnConstructor, getLogin, \
     getGlobalTimes
 from pylot.core.io.location import create_creation_info, create_event
 from pylot.core.util.widgets import FilterOptionsDialog, NewEventDlg, \
-    WaveformWidget, PropertiesDlg, HelpForm, createAction, PickDlg, getDataType
+    WaveformWidget, PropertiesDlg, HelpForm, createAction, PickDlg, \
+    getDataType, ComparisonDialog
 from pylot.core.util.structure import DATASTRUCTURE
 from pylot.core.util.thread import AutoPickThread
 from pylot.core.util.version import get_git_version as _getVersionString
@@ -578,7 +580,9 @@ class MainWindow(QMainWindow):
 
     def comparePicks(self):
         if self.check4Comparison():
-            compare_dlg = ComparisonDialog(self)
+            co = Comparison(auto=self.getPicks('auto'), manu=self.getPicks())
+            compare_dlg = ComparisonDialog(co, self)
+            compare_dlg.exec_()
 
     def getPlotWidget(self):
         return self.DataPlot
diff --git a/pylot/core/util/widgets.py b/pylot/core/util/widgets.py
index 0b30c0c8..16beb544 100644
--- a/pylot/core/util/widgets.py
+++ b/pylot/core/util/widgets.py
@@ -64,16 +64,43 @@ def createAction(parent, text, slot=None, shortcut=None, icon=None,
         action.setCheckable(True)
     return action
 
-class ComparsionDialog(QDialog):
+class ComparisonDialog(QDialog):
     def __init__(self, c, parent=None):
         self._data = c
         self._stats = c.keys()
-        self._canvas = PlotWidget(parent)
-        super(ComparsionDialog, self).__init__(parent)
-        self
+        self._canvas = PlotWidget(self)
+        super(ComparisonDialog, self).__init__(parent)
+        self.setupUI()
 
     def setupUI(self):
-        pass
+
+        _outerlayout = QVBoxLayout(self)
+        _innerlayout = QVBoxLayout(self)
+
+        _stats_combobox = QComboBox(self)
+        _stats_combobox.setEditable(True)
+        _stats_combobox.addItems(self.stations)
+        _stats_combobox.textChanged.connect(self.plotcomparison)
+
+        _phases_combobox = QComboBox(self)
+        _phases_combobox.addItems(['P', 'S'])
+
+        _toolbar = QToolBar(self)
+        _toolbar.addWidget(_stats_combobox)
+        _toolbar.addWidget(_phases_combobox)
+
+        _buttonbox = QDialogButtonBox(QDialogButtonBox.Close)
+
+        _innerlayout.addWidget(self.canvas)
+        _innerlayout.addWidget(_buttonbox)
+
+        _outerlayout.addWidget(_toolbar)
+        _outerlayout.addLayout(_innerlayout)
+
+        _buttonbox.rejected.connect(self.reject)
+
+        # finally layout the entire dialog
+        self.setLayout(_outerlayout)
 
     @property
     def canvas(self):