diff --git a/components/sessions/SessionTimelineChart.tsx b/components/sessions/SessionTimelineChart.tsx
index b95688a..af0320a 100644
--- a/components/sessions/SessionTimelineChart.tsx
+++ b/components/sessions/SessionTimelineChart.tsx
@@ -64,7 +64,29 @@ export function SessionTimelineChart({ timeline }: { timeline: TimelineRow[] })
           className="bp-readout text-xs"
         />
         <YAxis domain={[0, 100]} tickLine={false} axisLine={false} width={32} className="bp-readout text-xs" />
-        <ChartTooltip content={<ChartTooltipContent />} />
+        <ChartTooltip
+          content={
+            <ChartTooltipContent
+              formatter={(value, name) => {
+                const itemConfig = config[name as string];
+                return (
+                  <>
+                    <div
+                      className="h-2.5 w-2.5 shrink-0 rounded-[2px]"
+                      style={{ backgroundColor: itemConfig?.color }}
+                    />
+                    <div className="flex flex-1 items-center justify-between gap-4 leading-none">
+                      <span className="text-muted-foreground">{itemConfig?.label ?? name}</span>
+                      <span className="bp-readout font-medium text-foreground">
+                        {typeof value === "number" ? value.toLocaleString() : String(value)}
+                      </span>
+                    </div>
+                  </>
+                );
+              }}
+            />
+          }
+        />
         {series.map(([sessionDeviceId]) => (
           <Area
             key={sessionDeviceId}
diff --git a/package.json b/package.json
index 4e79dfd..8bff97c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sexy",
-  "version": "0.9.3",
+  "version": "0.9.4",
   "private": true,
   "scripts": {
     "dev": "next dev",