diff --git a/src/components/BalanceSummary/index.js b/src/components/BalanceSummary/index.js
index 17bd93ef..f0edf2b5 100644
--- a/src/components/BalanceSummary/index.js
+++ b/src/components/BalanceSummary/index.js
@@ -35,7 +35,8 @@ const BalanceSummary = ({
   renderHeader,
   selectedTime,
 }: Props) => {
-  const unit = getFiatCurrencyByTicker(counterValue).units[0]
+  const currency = getFiatCurrencyByTicker(counterValue)
+  const account = accounts.length === 1 ? accounts[0] : null
   return (
     <Card p={0} py={6}>
       <CalculateBalance
@@ -61,21 +62,28 @@ const BalanceSummary = ({
               <Box ff="Open Sans" fontSize={4} color="graphite" pt={6}>
                 <Chart
                   id={chartId}
+                  account={account}
                   color={chartColor}
                   data={balanceHistory}
                   height={250}
-                  unit={unit}
+                  currency={currency}
                   tickXScale={selectedTime}
-                  renderTooltip={d =>
-                    isAvailable ? (
-                      <FormattedVal
-                        alwaysShowSign={false}
-                        color="white"
-                        showCode
-                        fiat={counterValue}
-                        val={d.value}
-                      />
-                    ) : null
+                  renderTooltip={
+                    isAvailable && !account
+                      ? d => (
+                          <Fragment>
+                            <FormattedVal
+                              alwaysShowSign={false}
+                              fontSize={5}
+                              color="dark"
+                              showCode
+                              fiat={counterValue}
+                              val={d.value}
+                            />
+                            <Box mt="auto">{d.date.toISOString().substr(0, 10)}</Box>
+                          </Fragment>
+                        )
+                      : null
                   }
                 />
               </Box>
diff --git a/src/components/DashboardPage/AccountCard.js b/src/components/DashboardPage/AccountCard.js
index 43502b46..62f6d608 100644
--- a/src/components/DashboardPage/AccountCard.js
+++ b/src/components/DashboardPage/AccountCard.js
@@ -88,7 +88,7 @@ const AccountCard = ({
             hideAxis
             isInteractive={false}
             id={`account-chart-${account.id}`}
-            unit={account.unit}
+            account={account}
           />
         </Box>
       )}
diff --git a/src/components/base/Chart/Tooltip.js b/src/components/base/Chart/Tooltip.js
index 54cc7900..7ea0e93f 100644
--- a/src/components/base/Chart/Tooltip.js
+++ b/src/components/base/Chart/Tooltip.js
@@ -1,47 +1,37 @@
 // @flow
 
-import React from 'react'
+import React, { Fragment } from 'react'
+import styled from 'styled-components'
 
-import type { Unit } from '@ledgerhq/live-common/lib/types'
+import type { Account } from '@ledgerhq/live-common/lib/types'
 
-import { colors as themeColors } from 'styles/theme'
-import { TooltipContainer } from 'components/base/Tooltip'
+import CounterValue from 'components/CounterValue'
 import FormattedVal from 'components/base/FormattedVal'
+import Box from 'components/base/Box'
 
 import type { Item } from './types'
 
-/**
- * we use inline style for more perfs, as tooltip may re-render numerous times
- */
-
-const Arrow = () => (
-  <svg
-    style={{
-      display: 'block',
-      position: 'absolute',
-      left: '50%',
-      bottom: 0,
-      marginBottom: -10,
-      transform: 'translate(-50%, 0)',
-    }}
-    viewBox="0 0 14 6.2"
-    width={16}
-    height={16}
-  >
-    <path fill={themeColors.dark} d="m14 0-5.5 5.6c-0.8 0.8-2 0.8-2.8 0l-5.7-5.6" />
-  </svg>
-)
+const Container = styled(Box).attrs({
+  px: 4,
+  py: 3,
+  align: 'center',
+})`
+  background: white;
+  border: 1px solid #d8d8d8;
+  border-radius: 4px;
+  width: 150px;
+  height: 90px;
+  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.03);
+`
 
 const Tooltip = ({
-  d,
+  item,
   renderTooltip,
-  fiat,
-  unit,
+  account,
 }: {
-  d: Item,
+  item: Item,
   renderTooltip?: Function,
-  fiat?: string,
-  unit?: Unit,
+  account: Account,
 }) => (
   <div style={{ position: 'relative' }}>
     <div
@@ -51,32 +41,37 @@ const Tooltip = ({
         left: 0,
         transform: `translate3d(-50%, 0, 0)`,
         whiteSpace: 'nowrap',
-        marginBottom: 5,
+        marginBottom: -5,
       }}
     >
-      <TooltipContainer style={{ textAlign: 'center' }}>
+      <Container style={{ textAlign: 'center' }}>
         {renderTooltip ? (
-          renderTooltip(d)
+          renderTooltip(item)
         ) : (
-          <FormattedVal
-            alwaysShowSign={false}
-            color="white"
-            showCode
-            fiat={fiat}
-            unit={unit}
-            val={d.value}
-          />
+          <Fragment>
+            <FormattedVal
+              color="dark"
+              fontSize={5}
+              alwaysShowSign={false}
+              showCode
+              unit={account.currency.units[0]}
+              val={item.value}
+            />
+            <CounterValue
+              account={account}
+              currency={account.currency}
+              value={item.value}
+              disableRounding
+              showCode
+            />
+            <Box ff="Open Sans|Regular" color="grey" fontSize={3} mt="auto">
+              {item.date.toISOString().substr(0, 10)}
+            </Box>
+          </Fragment>
         )}
-      </TooltipContainer>
-      <Arrow />
+      </Container>
     </div>
   </div>
 )
 
-Tooltip.defaultProps = {
-  renderTooltip: undefined,
-  fiat: undefined,
-  unit: undefined,
-}
-
 export default Tooltip
diff --git a/src/components/base/Chart/handleMouseEvents.js b/src/components/base/Chart/handleMouseEvents.js
index 9f39e8c3..b30c7742 100644
--- a/src/components/base/Chart/handleMouseEvents.js
+++ b/src/components/base/Chart/handleMouseEvents.js
@@ -29,7 +29,7 @@ export default function handleMouseEvents({
   renderTooltip?: Function,
 }) {
   const { MARGINS, HEIGHT, WIDTH, NODES, DATA, x, y } = ctx
-  const { hideAxis, unit } = props
+  const { account } = props
 
   const bisectDate = d3.bisector(d => d.parsedDate).left
 
@@ -65,21 +65,15 @@ export default function handleMouseEvents({
     NODES.tooltip
       .style('transition', '100ms cubic-bezier(.61,1,.53,1) opacity')
       .style('opacity', 1)
-      .style('transform', `translate3d(${MARGINS.left + x(d.parsedDate)}px, ${y(d.value)}px, 0)`)
+      .style('transform', `translate3d(${MARGINS.left + x(d.parsedDate)}px, 0, 0)`)
     NODES.focus.style('opacity', 1)
-    if (!hideAxis) {
-      NODES.xBar.style('opacity', 1)
-      NODES.yBar.style('opacity', 1)
-    }
+    NODES.xBar.style('opacity', 1)
   }
 
   function mouseOut() {
     NODES.tooltip.style('opacity', 0).style('transition', '100ms linear opacity')
     NODES.focus.style('opacity', 0)
-    if (!hideAxis) {
-      NODES.xBar.style('opacity', 0)
-      NODES.yBar.style('opacity', 0)
-    }
+    NODES.xBar.style('opacity', 0)
   }
 
   function mouseMove() {
@@ -97,24 +91,17 @@ export default function handleMouseEvents({
         renderToString(
           <Provider store={createStore({})}>
             <ThemeProvider theme={theme}>
-              <Tooltip unit={unit} renderTooltip={renderTooltip} d={d.ref} />
+              <Tooltip account={account} renderTooltip={renderTooltip} item={d.ref} />
             </ThemeProvider>
           </Provider>,
         ),
       )
-      .style('transform', `translate3d(${MARGINS.left + x(d.parsedDate)}px, ${y(d.value)}px, 0)`)
-    if (!hideAxis) {
-      NODES.xBar
-        .attr('x1', x(d.parsedDate))
-        .attr('x2', x(d.parsedDate))
-        .attr('y1', HEIGHT)
-        .attr('y2', y(d.value))
-      NODES.yBar
-        .attr('x1', 0)
-        .attr('x2', x(d.parsedDate))
-        .attr('y1', y(d.value))
-        .attr('y2', y(d.value))
-    }
+      .style('transform', `translate3d(${MARGINS.left + x(d.parsedDate)}px, 0, 0)`)
+    NODES.xBar
+      .attr('x1', x(d.parsedDate))
+      .attr('x2', x(d.parsedDate))
+      .attr('y1', 0)
+      .attr('y2', HEIGHT)
   }
 
   return node
diff --git a/src/components/base/Chart/helpers.js b/src/components/base/Chart/helpers.js
index 6f0256c7..3505fba9 100644
--- a/src/components/base/Chart/helpers.js
+++ b/src/components/base/Chart/helpers.js
@@ -16,7 +16,7 @@ export function generateColors(color) {
     focus: color,
     gradientStart: cColor.fade(0.7),
     gradientStop: cColor.fade(1),
-    focusBar: cColor.fade(0.5),
+    focusBar: '#d8d8d8',
   }
 }
 
diff --git a/src/components/base/Chart/index.js b/src/components/base/Chart/index.js
index 7362b379..21cba1b6 100644
--- a/src/components/base/Chart/index.js
+++ b/src/components/base/Chart/index.js
@@ -37,7 +37,7 @@ import React, { PureComponent } from 'react'
 import * as d3 from 'd3'
 import noop from 'lodash/noop'
 
-import type { Unit } from '@ledgerhq/live-common/lib/types'
+import type { Account } from '@ledgerhq/live-common/lib/types'
 
 import refreshNodes from './refreshNodes'
 import refreshDraw from './refreshDraw'
@@ -48,7 +48,7 @@ import type { Data } from './types'
 
 export type Props = {
   data: Data, // eslint-disable-line react/no-unused-prop-types
-  unit?: Unit, // eslint-disable-line react/no-unused-prop-types
+  account?: Account, // eslint-disable-line react/no-unused-prop-types
 
   id?: string, // eslint-disable-line react/no-unused-prop-types
   height?: number,
@@ -69,7 +69,6 @@ class Chart extends PureComponent<Props> {
     id: 'chart',
     isInteractive: true,
     tickXScale: 'month',
-    unit: undefined,
   }
 
   componentDidMount() {
diff --git a/src/components/base/Chart/refreshDraw.js b/src/components/base/Chart/refreshDraw.js
index 30835ae9..188b5913 100644
--- a/src/components/base/Chart/refreshDraw.js
+++ b/src/components/base/Chart/refreshDraw.js
@@ -65,9 +65,8 @@ export default function refreshDraw({ ctx, props }: { ctx: CTX, props: Props })
     if (isInteractive) {
       // Update focus bar colors
       NODES.xBar.attr('stroke', COLORS.focusBar)
-      NODES.yBar.attr('stroke', COLORS.focusBar)
       // Update dot color
-      NODES.focus.attr('fill', COLORS.focus)
+      NODES.focus.attr('stroke', COLORS.focus)
     }
     // Update gradient color
     NODES.gradientStart.attr('stop-color', COLORS.gradientStart)
@@ -82,7 +81,6 @@ export default function refreshDraw({ ctx, props }: { ctx: CTX, props: Props })
     NODES.focus.style('opacity', 0)
     NODES.tooltip.style('opacity', 0)
     NODES.xBar.style('opacity', 0)
-    NODES.yBar.style('opacity', 0)
   }
 
   // Draw axis
diff --git a/src/components/base/Chart/refreshNodes.js b/src/components/base/Chart/refreshNodes.js
index d4280ad4..3fde2f95 100644
--- a/src/components/base/Chart/refreshNodes.js
+++ b/src/components/base/Chart/refreshNodes.js
@@ -30,16 +30,7 @@ export default function refreshNodes({ ctx, node, props }: { ctx: CTX, node: any
     NODES.wrapper
       .append('line')
       .attr('stroke', COLORS.focusBar)
-      .attr('stroke-width', '1px')
-      .attr('stroke-dasharray', '3, 2'),
-  )
-
-  ensure({ onlyIf: isInteractive, NODES, key: 'yBar' }, () =>
-    NODES.wrapper
-      .append('line')
-      .attr('stroke', COLORS.focusBar)
-      .attr('stroke-width', '1px')
-      .attr('stroke-dasharray', '3, 2'),
+      .attr('stroke-width', '1px'),
   )
 
   // Gradient
@@ -98,7 +89,9 @@ export default function refreshNodes({ ctx, node, props }: { ctx: CTX, node: any
     NODES.wrapper
       .append('g')
       .append('circle')
-      .attr('fill', COLORS.focus)
+      .attr('fill', 'white')
+      .attr('stroke', COLORS.focus)
+      .attr('stroke-width', 2)
       .attr('r', 4),
   )
 
diff --git a/src/components/base/Chart/stories.js b/src/components/base/Chart/stories.js
index 79a90f08..8b26d3d6 100644
--- a/src/components/base/Chart/stories.js
+++ b/src/components/base/Chart/stories.js
@@ -9,11 +9,15 @@ import { boolean, number } from '@storybook/addon-knobs'
 import { color } from '@storybook/addon-knobs/react'
 
 import Chart from 'components/base/Chart'
+import Box from 'components/base/Box'
 
 const stories = storiesOf('Components/base', module)
 
 const data = generateRandomData(365)
-const unit = getCryptoCurrencyById('bitcoin').units[0]
+const currency = getCryptoCurrencyById('bitcoin')
+const fakeAccount = {
+  currency,
+}
 
 type State = {
   start: number,
@@ -32,23 +36,31 @@ class Wrapper extends Component<any, State> {
     const { start, stop } = this.state
     return (
       <Fragment>
-        <input type="range" value={start} onChange={this.handleChange('start')} min={0} max={365} />
-        <input
-          type="range"
-          value={stop}
-          style={{ marginLeft: 10 }}
-          onChange={this.handleChange('stop')}
-          min={0}
-          max={365}
-        />
+        <Box mb={8} horizontal>
+          <input
+            type="range"
+            value={start}
+            onChange={this.handleChange('start')}
+            min={0}
+            max={365}
+          />
+          <input
+            type="range"
+            value={stop}
+            style={{ marginLeft: 10 }}
+            onChange={this.handleChange('stop')}
+            min={0}
+            max={365}
+          />
+        </Box>
 
         <Chart
           isInteractive={boolean('isInteractive', true)}
-          hideAxis={boolean('hideAxis', false)}
+          hideAxis={boolean('hideAxis', true)}
           color={color('color', '#5f8ced')}
           data={data.slice(start, stop)}
           height={number('height', 300)}
-          unit={unit}
+          account={fakeAccount}
         />
       </Fragment>
     )