Not accurate
I bought this for my dad who had a stroke and has to monitor his blood pressure for medication purposes.  The reading that I got with this wrist monitor was substantially higher than his regular arm one.  I used the wrist monitor and compared it to his regular monitor twice and each time the wrist monitor was higher than the regular monitor.  Since his medicines are based on his blood pressure reading, this monitor is useless to him.
Rating: 1 stars