My wife has blood pressure issues and she HATES using a blood pressure sensor because of the pressure it puts on her arm. We even tried a wrist sensor and she didn't care, he didn't like it. It was an idea that we knew wouldn't exactly work, but we had to try everything we could. When we received the watch we gave it a quick charge just to try it out and kept the box knowing we would most likely be returning it. We tested it on 5 people in a family, compared to the regular digital meter we have it was accurate within 3-4 points which is great. So I plugged it in for a full charge, it didn't charge after 3 hours. My fault I hooked it up the other way around or upside down, whatever. My wife hasn't worn a watch in over 20 years and doesn't plan to start now so we just put the watch on her wrist and measured. It works well. If you're buying this watch for that alone, it's worth it. Now I have to try other options, LOL.UPDATE: The watch didn't even last 2 months. Of course, immediately after the return policy has expired, this watch SIMPLY WILL NOT BE CHARGED. So now it's basically a decorative item on a dresser that needs to be disposed of like GARBAGE!
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