diff --git a/GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.cpp b/GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9b08171c689c31343759543f1f00f85788bbaef9
--- /dev/null
+++ b/GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.cpp
@@ -0,0 +1,136 @@
+// ************************************************************************** //
+//
+//  BornAgain: simulate and fit scattering at grazing incidence
+//
+//! @file      GUI/coregui/Views/FitWidgets/FitComparisonWidget1D.cpp
+//! @brief     Implements class FitComparisonWidget1D
+//!
+//! @homepage  http://www.bornagainproject.org
+//! @license   GNU General Public License v3 or higher (see COPYING)
+//! @copyright Forschungszentrum Jülich GmbH 2018
+//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
+//
+// ************************************************************************** //
+
+#include "FitComparisonWidget1D_New.h"
+#include "FitComparisonController.h"
+#include "FitFlowWidget.h"
+#include "FitSuiteItem.h"
+#include "IntensityDataPropertyWidget.h"
+#include "JobItem.h"
+#include "PlotStatusLabel.h"
+#include "RealDataItem.h"
+#include "SessionModel.h"
+#include "SpecularDataItem.h"
+#include "SpecularPlot.h"
+#include "SpecularPlotCanvas.h"
+#include <QAction>
+#include <QGridLayout>
+#include <QVBoxLayout>
+
+FitComparisonWidget1D_New::FitComparisonWidget1D_New(QWidget *parent)
+    : SessionItemWidget(parent)
+    , m_data_plot(new SpecularPlotCanvas)
+    , m_diff_plot(new SpecularPlotCanvas)
+    , m_fitFlowWidget(new FitFlowWidget)
+    , m_statusLabel(new PlotStatusLabel(nullptr, this))
+    , m_propertyWidget(new IntensityDataPropertyWidget)
+    , m_resetViewAction(new QAction(this))
+    , m_comparisonController(new FitComparisonController1D(this))
+{
+    auto vlayout = new QVBoxLayout;
+    vlayout->setMargin(0);
+    vlayout->setSpacing(0);
+
+    auto gridLayout = new QGridLayout;
+    gridLayout->setMargin(0);
+    gridLayout->setSpacing(0);
+
+    gridLayout->addWidget(m_data_plot, 0, 0, 1, -1);
+    gridLayout->addWidget(m_diff_plot, 1, 0);
+    gridLayout->addWidget(m_fitFlowWidget, 1, 1);
+
+    vlayout->addLayout(gridLayout);
+    vlayout->addWidget(m_statusLabel);
+
+    auto hlayout = new QHBoxLayout;
+    hlayout->setMargin(0);
+    hlayout->setSpacing(0);
+    hlayout->addLayout(vlayout);
+    hlayout->addWidget(m_propertyWidget);
+    setLayout(hlayout);
+
+    m_resetViewAction->setText("Reset View");
+    m_resetViewAction->setIcon(QIcon(":/images/toolbar16light_refresh.svg"));
+    m_resetViewAction->setToolTip("Reset View");
+    connect(m_resetViewAction, &QAction::triggered, this, &FitComparisonWidget1D_New::onResetViewAction);
+
+    m_propertyWidget->setVisible(false);
+}
+
+FitComparisonWidget1D_New::~FitComparisonWidget1D_New() = default;
+
+QList<QAction*> FitComparisonWidget1D_New::actionList()
+{
+    return QList<QAction*>() << m_resetViewAction << m_propertyWidget->actionList();
+}
+
+void FitComparisonWidget1D_New::subscribeToItem()
+{
+    if (!jobItem()->isValidForFitting())
+        return;
+
+    jobItem()->mapper()->setOnPropertyChange(
+        [this](const QString& name) {
+            if (name == JobItem::P_STATUS) {
+                if (jobItem()->isCompleted())
+                    onResetViewAction();
+            }
+        },
+        this);
+
+    m_comparisonController->setItem(jobItem());
+
+    m_data_plot->setItem(simulatedDataItem());
+    m_diff_plot->setItem(m_comparisonController->diffItem());
+    m_fitFlowWidget->setItem(jobItem()->fitSuiteItem());
+
+    m_statusLabel->reset();
+    m_statusLabel->addPlot(m_data_plot->specularPlot());
+    m_statusLabel->addPlot(m_diff_plot->specularPlot());
+
+    m_propertyWidget->setItem(simulatedDataItem());
+}
+
+void FitComparisonWidget1D_New::unsubscribeFromItem()
+{
+    if (!currentItem())
+        return;
+
+    m_comparisonController->clear();
+}
+
+void FitComparisonWidget1D_New::onResetViewAction()
+{
+    realDataItem()->resetView();
+    simulatedDataItem()->resetView();
+    m_comparisonController->resetDiffItem();
+}
+
+JobItem* FitComparisonWidget1D_New::jobItem()
+{
+    JobItem* jobItem = dynamic_cast<JobItem*>(currentItem());
+    return jobItem;
+}
+
+SpecularDataItem* FitComparisonWidget1D_New::realDataItem()
+{
+    assert(dynamic_cast<SpecularDataItem*>(jobItem()->realDataItem()->dataItem()));
+    return dynamic_cast<SpecularDataItem*>(jobItem()->realDataItem()->dataItem());
+}
+
+SpecularDataItem* FitComparisonWidget1D_New::simulatedDataItem()
+{
+    assert(dynamic_cast<SpecularDataItem*>(jobItem()->dataItem()));
+    return dynamic_cast<SpecularDataItem*>(jobItem()->dataItem());
+}
diff --git a/GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.h b/GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.h
new file mode 100644
index 0000000000000000000000000000000000000000..218d684e957b4e1db7e2c9092b081b4e1908e13d
--- /dev/null
+++ b/GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.h
@@ -0,0 +1,63 @@
+// ************************************************************************** //
+//
+//  BornAgain: simulate and fit scattering at grazing incidence
+//
+//! @file      GUI/coregui/Views/FitWidgets/FitComparisonWidget1D_New.h
+//! @brief     Defines class FitComparisonWidget1D
+//!
+//! @homepage  http://www.bornagainproject.org
+//! @license   GNU General Public License v3 or higher (see COPYING)
+//! @copyright Forschungszentrum Jülich GmbH 2018
+//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
+//
+// ************************************************************************** //
+
+#ifndef FITCOMPARISONWIDGET1D_NEW_H
+#define FITCOMPARISONWIDGET1D_NEW_H
+
+#include "SessionItemWidget.h"
+
+class FitComparisonController1D;
+class FitFlowWidget;
+class IntensityDataPropertyWidget;
+class JobItem;
+class PlotStatusLabel;
+class QAction;
+class SpecularDataItem;
+class SpecularPlotCanvas;
+
+//! The FitComparisonWidget class plots realdata, simulated data and relative difference map
+//! during the course of the fit.
+
+class BA_CORE_API_ FitComparisonWidget1D_New : public SessionItemWidget
+{
+    Q_OBJECT
+public:
+    explicit FitComparisonWidget1D_New(QWidget* parent = nullptr);
+    ~FitComparisonWidget1D_New() override;
+
+    virtual QList<QAction*> actionList() override;
+
+private slots:
+    void onResetViewAction();
+
+protected:
+    void subscribeToItem() override;
+    void unsubscribeFromItem() override;
+
+private:
+    JobItem* jobItem();
+    SpecularDataItem* realDataItem();
+    SpecularDataItem* simulatedDataItem();
+
+    SpecularPlotCanvas* m_data_plot;
+    SpecularPlotCanvas* m_diff_plot;
+    FitFlowWidget* m_fitFlowWidget;
+    PlotStatusLabel* m_statusLabel;
+    IntensityDataPropertyWidget* m_propertyWidget;
+
+    QAction* m_resetViewAction;
+    FitComparisonController1D* m_comparisonController;
+};
+
+#endif // FITCOMPARISONWIDGET1D_NEW_H