Fitness Tracker Labyrinth Gift Box

Fitness Tracker Labyrinth Gift Box
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A relative of mine will get a fitness tracker as present for christmas. He should choose the exakt model himself. Therefore I made this box to hold the gift card/coupon.

The puzzle and the box
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The puzzle is made with the fabolous puzzle box creater from https://www.me.uk/puzzlebox/. Thanks to RevK!
I changed the scad files slightly, so the cards fit nicely.
The inner cylinder, to store the gift card is 110mm deep and has a diameter of 40mm.

The cards
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I designed four different cards, so you can imagine what the gift may be. What device is able to
1. show the time,
2. measure your blood oxygen / pulse,
3. give you directions and
4. show you the height?

Correct: A smart watch or fitness tracker.

The cards are designed with 0,6mm height base and multiple layers with different colors. The map for example:
* The first three layers a printed with grey PLA for the background,
* Layer