diff --git a/server/server.js b/server/server.js
index 3084cad2..49e867da 100644
--- a/server/server.js
+++ b/server/server.js
@@ -644,6 +644,38 @@ exports.entryPage = "dashboard";
             }
         });
 
+        socket.on("getMonitorBeats", async (monitorID, period, callback) => {
+            try {
+                checkLogin(socket);
+
+                console.log(`Get Monitor Beats: ${monitorID} User ID: ${socket.userID}`);
+
+                if (period == null) {
+                    throw new Error("Invalid period.");
+                }
+
+                let list = await R.getAll(`
+                    SELECT * FROM heartbeat
+                    WHERE monitor_id = ? AND
+                    time > DATETIME('now', '-' || ? || ' hours')
+                    ORDER BY time ASC
+                `, [
+                    monitorID,
+                    period,
+                ]);
+
+                callback({
+                    ok: true,
+                    data: list,
+                });
+            } catch (e) {
+                callback({
+                    ok: false,
+                    msg: e.message,
+                });
+            }
+        });
+
         // Start or Resume the monitor
         socket.on("resumeMonitor", async (monitorID, callback) => {
             try {
diff --git a/src/components/PingChart.vue b/src/components/PingChart.vue
index 0baa9881..aa209fab 100644
--- a/src/components/PingChart.vue
+++ b/src/components/PingChart.vue
@@ -1,16 +1,34 @@
 <template>
-    <LineChart :chart-data="chartData" :options="chartOptions" />
+    <div>
+        <div class="period-options">
+            <button type="button" class="btn btn-light dropdown-toggle btn-period-toggle" data-bs-toggle="dropdown" aria-expanded="false">
+                {{ chartPeriodOptions[chartPeriodHrs] }}&nbsp;
+            </button>
+            <ul class="dropdown-menu dropdown-menu-end">
+                <li v-for="(item, key) in chartPeriodOptions" :key="key">
+                    <a class="dropdown-item" :class="{ active: chartPeriodHrs == key }" href="#" @click="chartPeriodHrs = key">{{ item }}</a>
+                </li>
+            </ul>
+        </div>
+        <div class="chart-wrapper" :class="{ loading : loading}">
+            <LineChart :chart-data="chartData" :options="chartOptions" />
+        </div>
+    </div>
 </template>
 
-<script>
+<script lang="ts">
 import { BarController, BarElement, Chart, Filler, LinearScale, LineController, LineElement, PointElement, TimeScale, Tooltip } from "chart.js";
 import dayjs from "dayjs";
 import utc from "dayjs/plugin/utc";
 import timezone from "dayjs/plugin/timezone";
 import "chartjs-adapter-dayjs";
 import { LineChart } from "vue-chart-3";
+import { useToast } from "vue-toastification";
+import { UP, DOWN, PENDING } from "../util.ts";
+
 dayjs.extend(utc);
 dayjs.extend(timezone);
+const toast = useToast();
 
 Chart.register(LineController, BarController, LineElement, PointElement, TimeScale, BarElement, LinearScale, Tooltip, Filler);
 
@@ -24,8 +42,23 @@ export default {
     },
     data() {
         return {
+
+            loading: false,
+
             // Configurable filtering on top of the returned data
-            chartPeriodHrs: 6,
+            chartPeriodHrs: 0,
+
+            chartPeriodOptions: {
+                0: this.$t("recent"),
+                3: "3h",
+                6: "6h",
+                24: "24h",
+                168: "1w",
+            },
+
+            // A heartbeatList for 3h, 6h, 24h, 1w
+            // Uses the $root.heartbeatList when value is null
+            heartbeatList: null
         };
     },
     computed: {
@@ -117,7 +150,7 @@ export default {
                         },
                         callbacks: {
                             label: (context) => {
-                                return ` ${new Intl.NumberFormat().format(context.parsed.y)} ms`
+                                return ` ${new Intl.NumberFormat().format(context.parsed.y)} ms`;
                             },
                         }
                     },
@@ -125,27 +158,36 @@ export default {
                         display: false,
                     },
                 },
-            }
+            };
         },
         chartData() {
             let pingData = [];  // Ping Data for Line Chart, y-axis contains ping time
             let downData = [];  // Down Data for Bar Chart, y-axis is 1 if target is down, 0 if target is up
-            if (this.monitorId in this.$root.heartbeatList) {
-                this.$root.heartbeatList[this.monitorId]
-                    .filter(
-                        (beat) => dayjs.utc(beat.time).tz(this.$root.timezone).isAfter(dayjs().subtract(this.chartPeriodHrs, "hours")))
-                    .map((beat) => {
-                        const x = this.$root.datetime(beat.time);
-                        pingData.push({
-                            x,
-                            y: beat.ping,
-                        });
-                        downData.push({
-                            x,
-                            y: beat.status === 0 ? 1 : 0,
-                        })
+
+            let heartbeatList = this.heartbeatList ||
+             (this.monitorId in this.$root.heartbeatList && this.$root.heartbeatList[this.monitorId]) ||
+             [];
+
+            heartbeatList
+                .filter(
+                    // Filtering as data gets appended
+                    // not the most efficient, but works for now
+                    (beat) => dayjs.utc(beat.time).tz(this.$root.timezone).isAfter(
+                        dayjs().subtract(Math.max(this.chartPeriodHrs, 6), "hours")
+                    )
+                )
+                .map((beat) => {
+                    const x = this.$root.datetime(beat.time);
+                    pingData.push({
+                        x,
+                        y: beat.ping,
                     });
-            }
+                    downData.push({
+                        x,
+                        y: beat.status === DOWN ? 1 : 0,
+                    });
+                });
+
             return {
                 datasets: [
                     {
@@ -172,5 +214,110 @@ export default {
             };
         },
     },
+    watch: {
+        // Update chart data when the selected chart period changes
+        chartPeriodHrs: function (newPeriod) {
+            if (newPeriod == "0") {
+                newPeriod = null;
+                this.heartbeatList = null;
+            } else {
+                this.loading = true;
+
+                this.$root.getMonitorBeats(this.monitorId, newPeriod, (res) => {
+                    if (!res.ok) {
+                        toast.error(res.msg);
+                    } else {
+                        this.heartbeatList = res.data;
+                    }
+                    this.loading = false;
+                });
+            }
+        }
+    },
+    created() {
+        // Setup Watcher on the root heartbeatList,
+        // And mirror latest change to this.heartbeatList
+        this.$watch(() => this.$root.heartbeatList[this.monitorId],
+            (heartbeatList) => {
+                if (this.chartPeriodHrs != 0) {
+                    const newBeat = heartbeatList.at(-1);
+                    if (newBeat && dayjs.utc(newBeat.time) > dayjs.utc(this.heartbeatList.at(-1)?.time)) {
+                        this.heartbeatList.push(heartbeatList.at(-1));
+                    }
+                }
+            },
+            { deep: true }
+        );
+    }
 };
 </script>
+
+<style lang="scss" scoped>
+@import "../assets/vars.scss";
+
+.form-select {
+    width: unset;
+    display: inline-flex;
+}
+
+.period-options {
+    padding: 0.1em 1em;
+    margin-bottom: -1.2em;
+    float: right;
+    position: relative;
+    z-index: 10;
+
+    .dropdown-menu {
+        padding: 0;
+        min-width: 50px;
+        font-size: 0.9em;
+
+        .dark & {
+            background: $dark-bg;
+        }
+
+        .dropdown-item {
+            border-radius: 0.3rem;
+            padding: 2px 16px 4px 16px;
+
+            .dark & {
+                background: $dark-bg;
+            }
+
+            .dark &:hover {
+                background: $dark-font-color;
+            }
+        }
+
+        .dark & .dropdown-item.active {
+            background: $primary;
+            color: $dark-font-color2;
+        }
+    }
+
+    .btn-period-toggle {
+        padding: 2px 15px;
+        background: transparent;
+        border: 0;
+        color: $link-color;
+        opacity: 0.7;
+        font-size: 0.9em;
+
+        &::after {
+            vertical-align: 0.155em;
+        }
+
+        .dark & {
+            color: $dark-font-color;
+        }
+    }
+}
+
+.chart-wrapper {
+    margin-bottom: 0.5em;
+
+    &.loading {
+        filter: blur(10px);
+    }
+}
+</style>
diff --git a/src/mixins/socket.js b/src/mixins/socket.js
index d7ac8bcb..67979449 100644
--- a/src/mixins/socket.js
+++ b/src/mixins/socket.js
@@ -328,6 +328,10 @@ export default {
         clearStatistics(callback) {
             socket.emit("clearStatistics", callback);
         },
+
+        getMonitorBeats(monitorID, period, callback) {
+            socket.emit("getMonitorBeats", monitorID, period, callback);
+        }
     },
 
     computed: {