Negative Positive
Title: Convenient, but reads low
Review: I've owned an Omron BP wrist-style BP monitor for some time, and it's easy to use and reasonably accurate. This newer model, however, reads 12-15 points low for both systolic and diastolic (compared to my physician's office reading with a standard BP cuff), which seems reassuring but produces a false sense of security. I bought another locally, to see if the problem was just with this one device, but it read the same. Accuracy is Job #1 for a BP monitor, and this one doesn't do the job. I returned the HEM-650 and bought an Omron HEM-711AC, an inflatable-cuff model, and it's right on. It runs on either batteries or an AC adapter. The accuracy is most important, so I'm staying with this model.
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