diff --git a/src/components/views/dialogs/ManualDeviceKeyVerificationDialog.js b/src/components/views/dialogs/ManualDeviceKeyVerificationDialog.js
new file mode 100644
index 0000000000..4b9d7239e6
--- /dev/null
+++ b/src/components/views/dialogs/ManualDeviceKeyVerificationDialog.js
@@ -0,0 +1,86 @@
+/*
+Copyright 2016 OpenMarket Ltd
+Copyright 2017 Vector Creations Ltd
+Copyright 2019 New Vector Ltd
+Copyright 2019 Michael Telatynski <7t3chguy@gmail.com>
+Copyright 2020 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import PropTypes from 'prop-types';
+import {MatrixClientPeg} from '../../../MatrixClientPeg';
+import * as sdk from '../../../index';
+import * as FormattingUtils from '../../../utils/FormattingUtils';
+import { _t } from '../../../languageHandler';
+
+export default class ManualDeviceKeyVerificationDialog extends React.Component {
+    static propTypes = {
+        userId: PropTypes.string.isRequired,
+        device: PropTypes.object.isRequired,
+        onFinished: PropTypes.func.isRequired,
+    };
+
+    _onCancelClick = () => {
+        this.props.onFinished(false);
+    }
+
+    _onLegacyFinished = (confirm) => {
+        if (confirm) {
+            MatrixClientPeg.get().setDeviceVerified(
+                this.props.userId, this.props.device.deviceId, true,
+            );
+        }
+        this.props.onFinished(confirm);
+    }
+
+    render() {
+        const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
+
+        let text;
+        if (MatrixClientPeg.get().getUserId() === this.props.userId) {
+            text = _t("Confirm by comparing the following with the User Settings in your other session:");
+        } else {
+            text = _t("Confirm this user's session by comparing the following with their User Settings:");
+        }
+
+        const key = FormattingUtils.formatCryptoKey(this.props.device.getFingerprint());
+        const body = (
+            <div>
+                <p>
+                    { text }
+                </p>
+                <div className="mx_DeviceVerifyDialog_cryptoSection">
+                    <ul>
+                        <li><label>{ _t("Session name") }:</label> <span>{ this.props.device.getDisplayName() }</span></li>
+                        <li><label>{ _t("Session ID") }:</label> <span><code>{ this.props.device.deviceId }</code></span></li>
+                        <li><label>{ _t("Session key") }:</label> <span><code><b>{ key }</b></code></span></li>
+                    </ul>
+                </div>
+                <p>
+                    { _t("If they don't match, the security of your communication may be compromised.") }
+                </p>
+            </div>
+        );
+
+        return (
+            <QuestionDialog
+                title={_t("Verify session")}
+                description={body}
+                button={_t("Verify session")}
+                onFinished={this._onLegacyFinished}
+            />
+        );
+    }
+}
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index c3befa2298..4ff7ebc9c1 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -294,8 +294,9 @@
     "Not Trusted": "Not Trusted",
     "%(name)s (%(userId)s) signed in to a new session without verifying it:": "%(name)s (%(userId)s) signed in to a new session without verifying it:",
     "Ask this user to verify their session, or manually verify it below.": "Ask this user to verify their session, or manually verify it below.",
+    "Manually Verify by Text": "Manually Verify by Text",
+    "Interactively verify by Emoji": "Interactively verify by Emoji",
     "Done": "Done",
-    "Manually Verify": "Manually Verify",
     "%(displayName)s is typing …": "%(displayName)s is typing …",
     "%(names)s and %(count)s others are typing …|other": "%(names)s and %(count)s others are typing …",
     "%(names)s and %(count)s others are typing …|one": "%(names)s and one other is typing …",
@@ -1613,6 +1614,9 @@
     "Manually export keys": "Manually export keys",
     "You'll lose access to your encrypted messages": "You'll lose access to your encrypted messages",
     "Are you sure you want to sign out?": "Are you sure you want to sign out?",
+    "Confirm by comparing the following with the User Settings in your other session:": "Confirm by comparing the following with the User Settings in your other session:",
+    "Confirm this user's session by comparing the following with their User Settings:": "Confirm this user's session by comparing the following with their User Settings:",
+    "If they don't match, the security of your communication may be compromised.": "If they don't match, the security of your communication may be compromised.",
     "Your homeserver doesn't seem to support this feature.": "Your homeserver doesn't seem to support this feature.",
     "Message edits": "Message edits",
     "Your account is not secure": "Your account is not secure",
diff --git a/src/verification.js b/src/verification.js
index 4443079b95..d0f6fd7806 100644
--- a/src/verification.js
+++ b/src/verification.js
@@ -39,38 +39,58 @@ async function enable4SIfNeeded() {
     return true;
 }
 
+function UntrustedDeviceDialog(props) {
+    const {device, user, onFinished} = props;
+    const BaseDialog = sdk.getComponent("dialogs.BaseDialog");
+    const AccessibleButton = sdk.getComponent("elements.AccessibleButton");
+    return <BaseDialog
+        onFinished={onFinished}
+        headerImage={require("../res/img/e2e/warning.svg")}
+        title={_t("Not Trusted")}>
+        <div className="mx_Dialog_content" id='mx_Dialog_content'>
+            <p>{_t("%(name)s (%(userId)s) signed in to a new session without verifying it:", {name: user.displayName, userId: user.userId})}</p>
+            <p>{device.getDisplayName()} ({device.deviceId})</p>
+            <p>{_t("Ask this user to verify their session, or manually verify it below.")}</p>
+        </div>
+        <div className='mx_Dialog_buttons'>
+            <AccessibleButton element="button" kind="secondary" onClick={() => onFinished("legacy")}>{_t("Manually Verify by Text")}</AccessibleButton>
+            <AccessibleButton element="button" kind="secondary" onClick={() => onFinished("sas")}>{_t("Interactively verify by Emoji")}</AccessibleButton>
+            <AccessibleButton kind="primary" onClick={() => onFinished()}>{_t("Done")}</AccessibleButton>
+        </div>
+    </BaseDialog>;
+}
+
 export async function verifyDevice(user, device) {
     if (!await enable4SIfNeeded()) {
         return;
     }
-    const QuestionDialog = sdk.getComponent("dialogs.QuestionDialog");
-    Modal.createTrackedDialog("Verification warning", "unverified session", QuestionDialog, {
-        headerImage: require("../res/img/e2e/warning.svg"),
-        title: _t("Not Trusted"),
-        description: <div>
-            <p>{_t("%(name)s (%(userId)s) signed in to a new session without verifying it:", {name: user.displayName, userId: user.userId})}</p>
-            <p>{device.getDisplayName()} ({device.deviceId})</p>
-            <p>{_t("Ask this user to verify their session, or manually verify it below.")}</p>
-        </div>,
-        onFinished: async (doneClicked) => {
-            const manuallyVerifyClicked = !doneClicked;
-            if (!manuallyVerifyClicked) {
-                return;
+    Modal.createTrackedDialog("Verification warning", "unverified session", UntrustedDeviceDialog, {
+        user,
+        device,
+        onFinished: async (action) => {
+            if (action === "sas") {
+                const cli = MatrixClientPeg.get();
+                const verificationRequestPromise = cli.legacyDeviceVerification(
+                    user.userId,
+                    device.deviceId,
+                    verificationMethods.SAS,
+                );
+                dis.dispatch({
+                    action: "set_right_panel_phase",
+                    phase: RIGHT_PANEL_PHASES.EncryptionPanel,
+                    refireParams: {member: user, verificationRequestPromise},
+                });
+            } else if (action === "legacy") {
+                const ManualDeviceKeyVerificationDialog = sdk.getComponent("dialogs.ManualDeviceKeyVerificationDialog");
+                Modal.createTrackedDialog("Legacy verify session", "legacy verify session",
+                    ManualDeviceKeyVerificationDialog,
+                    {
+                        userId: user.userId,
+                        device,
+                    },
+                );
             }
-            const cli = MatrixClientPeg.get();
-            const verificationRequestPromise = cli.legacyDeviceVerification(
-                user.userId,
-                device.deviceId,
-                verificationMethods.SAS,
-            );
-            dis.dispatch({
-                action: "set_right_panel_phase",
-                phase: RIGHT_PANEL_PHASES.EncryptionPanel,
-                refireParams: {member: user, verificationRequestPromise},
-            });
         },
-        primaryButton: _t("Done"),
-        cancelButton: _t("Manually Verify"),
     });
 }