Did you get it right?
This old public pool scene has swim caps, striped towels, lounge chairs, a snack window, and two modern items that slipped in.

The Answer
The correct answer is: The fitness tracker and Bluetooth speaker are the two wrong items..
Here is why
- The lifeguard chair, snack window, swim caps, towels, and metal lounge chairs fit the older public pool.
- The fitness tracker on a towel is modern.
- The Bluetooth speaker near the snack window is also modern.
Why people miss it
Both wrong items make sense at a pool today, so they blend into the summer scene.
What answer did you get before checking?