The Clock app on the OnePlus smartphone includes a timer and a stopwatch option that provides all the usual or necessary functions.

In addition to starting, pausing and stopping the stopwatch, we can record and compare individual lap times.

Note: In this guide, we start the stopwatch, stop a lap time, pause and reset it.
The above steps are for illustration purposes only and can be skipped in part.

Android 10 | OxygenOS 10.0
Step 1:  Open the  Clock app
Step 2:  Tap on  Stopwatch
Step 3:  Tap on  Start
Step 4:  Tap on  Lap timer
Step 5:  Tap on  Pause
Step 6:  Tap on  Reset
  1. Open the Clock app
  2. Tap on Stopwatch
  3. Tap on Start
  4. Tap on Lap timer
  5. Tap on Pause
  6. Tap on Reset