Good workers expect to have good managers. Good managers can gauge the worth of their workers without resorting to rigid procedures with constant robotic surveillance.

If I am ordered to wear a monitoring wristband, I will naturally suspect that my manager is an idiot. The first test would likely to be to pair up with another worker and swap wristbands. Further along, try putting both wristbands on one wrist for short periods of time, such as when someone is using the bathroom.

I'd probably also try bracelets with magnets on them and wrapping the wristband in foil. If they are universally hated by the workers, spraying them all with histamine before the shift starts would result in visible skin irritation under the bands, and a video of said irritation posted to social media might get them withdrawn for a while.

Good workers like to be respected and valued as human beings. Treat them like fungible cogs at your own peril.