Dr Trust Signature Series Fingertip Pulse Oximeter (210) vs Dr Morepen BP-15 Automatic Blood Pressure Monitor

These two differ on 6 recorded specifications. The Dr Morepen BP-15 Automatic Blood Pressure Monitor is ₹300 dearer.

Dr Trust

Dr Trust Signature Series Fingertip Pulse Oximeter (210)

₹1,199

Plus or minus 2 percent Arms sounds tight until you notice what it means: a displayed 94 percent could be 92.

Dr Morepen

₹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.

Buy it if: Anyone monitoring a respiratory condition at home who wants a reading they can sanity-check.

Avoid it if: Anyone expecting hospital-grade certainty -- home oximeters are screening tools, not diagnostics.

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.

6 of 15 rows differ. Differences first.

Specification	Dr Trust Signature Series Fingertip Pulse Oximeter	Dr Morepen BP-15 Automatic Blood Pressure Monitor
Price	₹1,199	₹1,499
Clinical validation	Accuracy verified against ISO 80601-2-61, the pulse oximeter standard	Not clinically validated. No listing on STRIDE BP and no published ESH or AAMI/ISO 81060-2 study
Measurement range	SpO2 35 to 100 percent; pulse rate 30 to 250 bpm	Pressure 0 to 299 mmHg; pulse 40 to 199 bpm
Power source	Two AAA cells, approximately 30 hours	Four AA cells or optional adapter
Regulatory status	CDSCO registered; CE marked	CDSCO registered; CE marked -- neither of which is a validation study
Stated accuracy	Plus or minus 2 percent Arms for SpO2 between 70 and 100 percent	Manufacturer states plus or minus 3 mmHg, unverified by an independent protocol
Stored readings	Last reading only	120 readings across two users
Connectivity	None	None
Warranty	1 Year Manufacturer Warranty	1 Year Manufacturer Warranty
Cuff size	not published	22 to 32 cm -- too small for many adult arms
Display	Colour OLED, four orientations	not published
Inflation	not published	Automatic, oscillometric
Irregular heartbeat detection	not published	Yes
Known limitation	Nail polish, cold fingers and dark skin tone all reduce accuracy	not published
Perfusion index	Displayed -- a low value means the reading is unreliable	not published
Response time	Under 10 seconds	not published

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