A Polar CS400 came in for repair.
Though it's not me doing the fixing—that's the service center's job.

↑For anyone using a Polar CS-series heart rate monitor,
I always tell them verbally:
"The three clips break easily, so be careful when attaching and removing from the mount."
If they don't detach from the mount frequently, I sometimes apply a thin coat of silicone grease
to the clips, but even then they break sometimes.

↑I also took in a CS200 with the same issue.
This isn't the first time.
Knowing full well they break easily and still breaking them—
it must mean they're incredibly fragile.
Bonus content below

Yosoji Kaibara

Lightning McQueen

Kyubey

Spelunker (situation looks hopeless)

Thomas

Hatsune Miku

Rilakkuma

Dr. Wily
I feel like there were more, but I can't find the files...
All hand-drawn by me.
Though it's not me doing the fixing—that's the service center's job.

↑For anyone using a Polar CS-series heart rate monitor,
I always tell them verbally:
"The three clips break easily, so be careful when attaching and removing from the mount."
If they don't detach from the mount frequently, I sometimes apply a thin coat of silicone grease
to the clips, but even then they break sometimes.

↑I also took in a CS200 with the same issue.
This isn't the first time.
Knowing full well they break easily and still breaking them—
it must mean they're incredibly fragile.
Bonus content below

Yosoji Kaibara

Lightning McQueen

Kyubey

Spelunker (situation looks hopeless)

Thomas

Hatsune Miku

Rilakkuma

Dr. Wily
I feel like there were more, but I can't find the files...
All hand-drawn by me.