Well I like the following on the device:
+ Easy to understand instructions
+ The use of battery instead of batteries
+ The easy to read display
+ Easy handling
+ Processing of the device and the cuff
+ The device switches itself off automatically.
Neutral I value the opportunity to transmit the readings via Bluetooth to a mobile phone. Not that I would be paranoid, but such personal information such as blood pressure (or even my toothbrush behavior) I do not have necessarily a company like Google or Apple (or Microsoft etc. pp.) Confide. Who knows, maybe then comes sometime even advertise Granufink or Kukident or so on Smartphone ...
Neutral I evaluate also that no AC adapter / charger cable is. With a perfectly ordinary Micro USB charger for smartphone or tablet or eBook (or werweißnochwasalles) the device can be charged easily, and is probably available in most households. (Too bad, if only Apple products to be used with its proprietary charging cables, then have possibly an appropriate cable to be purchased ... Or just if you use any such electronics.)
Negative I see only that the battery is firmly installed. That makes repair usually uneconomical and ensures unnecessary waste.
Basically, you should be aware that a device for the wrist measurement well as can not provide accurate values as a device for the upper arm measurement. On the other hand, one can thus sufficiently accurately monitor the body's own values. This is more critical in my case. If there are problems, I would always go to the Doc and get some advice in case of doubt of that. (What is the name still so beautiful ... send their doctor to pharmacist ...)
