Dr Morepen BP-15 Automatic Blood Pressure Monitor vs Vissco Functional Hinged Knee Support with Adjustable Range of Motion

These two differ on 6 recorded specifications. The Dr Morepen BP-15 Automatic Blood Pressure Monitor is ₹200 dearer.

Dr Morepen

Dr Morepen BP-15 Automatic Blood Pressure Monitor

₹1,499

Included because it is what most people actually buy, and because the gap it illustrates is the most useful thing in this department.

Vissco

₹1,299

The hinges are the whole difference, and the reason to pay three times a plain knee cap.

Buy it if: Anyone wanting a rough at-home trend at the lowest price, who understands the reading is indicative.

Avoid it if: Anyone whose medication is adjusted on home readings. Buy a validated monitor instead.

Buy it if: Anyone with ligament instability or recovering from a knee injury who needs lateral support.

Avoid it if: Anyone with simple arthritic ache -- a plain elastic knee cap costs a third as much and does the same thing.

6 of 16 rows differ. Differences first.

Specification	Dr Morepen BP-15 Automatic Blood Pressure Monitor	Vissco Functional Hinged Knee Support with Adjustable Range of Motion
Price	₹1,499	₹1,299
Clinical validation	Not clinically validated. No listing on STRIDE BP and no published ESH or AAMI/ISO 81060-2 study	Not applicable -- this is an orthosis, not a measuring device
Measurement range	Pressure 0 to 299 mmHg; pulse 40 to 199 bpm	Knee circumference 12 to 20 inches across four sizes
Power source	Four AA cells or optional adapter	Not applicable
Regulatory status	CDSCO registered; CE marked -- neither of which is a validation study	Manufactured to Indian orthotic standards; not a notified medical device
Stated accuracy	Manufacturer states plus or minus 3 mmHg, unverified by an independent protocol	Not applicable
Stored readings	120 readings across two users	Not applicable
Connectivity	None	None
Warranty	1 Year Manufacturer Warranty	1 Year Manufacturer Warranty
Cuff size	22 to 32 cm -- too small for many adult arms	not published
Difference from a knee cap	not published	Hinges resist sideways movement; a plain elastic cap only compresses
Hinges	not published	Bilateral metal, with stops
Inflation	Automatic, oscillometric	not published
Irregular heartbeat detection	Yes	not published
Material	not published	Neoprene-free breathable laminate
Open patella	not published	Yes, relieves pressure on the kneecap
Sizing	not published	Measured 15 cm above the knee centre, not at the kneecap

Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.