See Trend Graph History - Dexcom stelo Manual

See trend graph history

3 Hours 6 12
12PM 1PM
3 Hours 6 12 24
2
1 PM 2 PM
Your current reading and trend arrow are in the upper right corner.
If you added an event (for example, a meal) during the timeframe shown, it appears
below the graph. This lets you see how the events you tracked affected your glucose
level.
Touch and hold the graph to see your glucose level at the time under your finger.
Touch, hold, and then drag over the graph to see your event details for that time. Tap
the icon in the upper left corner to return to portrait mode.
32
24
250
180
70
2PM Now
90
mg/dL
250
180
70
4
3 PM Now
Tap the numbers above the trend graph to see
your trend graph over 3, 6, 12, and 24 hours.
To see your event history in your trend graph, turn
your phone to landscape and tap the numbers in
the top left side of the screen to switch between 3,
6, 12, and 24 hours of data.