The maker of the eCoffee Energyband says it electrically stimulates your nerves to keep you alert. Researchers are skeptical, and critics see it as a way for China’s bosses to keep workers productive.
They’ve worked for me, I would just go with the 3, not the one with the screen. Mine was always very consistent, and boy can it shock you.
My S/O at the time hated me cause I can sleep through everything, so the watch was the only sane option for the both of us, an it did wake my ass up. Can’t say I’ve ever trained myself to wake up at 6am normally though lol.
They’ve worked for me, I would just go with the 3, not the one with the screen. Mine was always very consistent, and boy can it shock you.
My S/O at the time hated me cause I can sleep through everything, so the watch was the only sane option for the both of us, an it did wake my ass up. Can’t say I’ve ever trained myself to wake up at 6am normally though lol.