Zacurate Pro Series 500DL Fingertip Pulse Oximeter vs Shock Doctor Compression Knee Support Brace with Stay
What separates them
These two differ on 6 recorded specifications. The Shock Doctor Compression Knee Support Brace with Stay is ₹500 dearer.
Zacurate Pro Series 500DL Fingertip Pulse Oximeter vs Shock Doctor Compression Knee Support Brace with Stay
Zacurate
Zacurate Pro Series 500DL Fingertip Pulse Oximeter
₹1,999
Competent hardware carrying two caveats worth knowing.
Full details →
Shock Doctor
Shock Doctor Compression Knee Support Brace with Stay
₹2,499
Stays and hinges are not the same thing, and the distinction decides whether this is the right product.
Full details →Who the Zacurate Pro Series 500DL Fingertip Pulse Oximeter is for
Buy it if: Anyone who wants an FDA-cleared oximeter and does not need Indian regulatory approval.
Avoid it if: Anyone wanting a CDSCO-registered device, or a perfusion index to judge reading quality.
Who the Shock Doctor Compression Knee Support Brace with Stay is for
Buy it if: Athletes wanting compression and mild support that fits under clothing.
Avoid it if: Anyone with a diagnosed ligament injury -- that needs a hinged brace, not stays.
Specifications, side by side
6 of 18 rows differ. Differences first.
| Specification | Zacurate Pro Series 500DL Fingertip Pulse Oximeter | Shock Doctor Compression Knee Support Brace with Stay |
|---|---|---|
| Price | ₹1,999 | ₹2,499 |
| Clinical validation | Manufacturer states testing against ISO 80601-2-61; no independent study published | Not applicable -- this is an orthosis, not a measuring device |
| Measurement range | SpO2 70 to 100 percent; pulse rate 30 to 250 bpm | Knee circumference 12 to 22 inches across five sizes |
| Power source | Two AAA cells, approximately 30 hours | Not applicable |
| Regulatory status | US FDA cleared. Not CDSCO registered for the Indian market | Not a notified medical device |
| Stated accuracy | Plus or minus 2 percent Arms for SpO2 between 70 and 100 percent, manufacturer stated | Not applicable |
| Stored readings | Last reading only | Not applicable |
| Connectivity | None | None |
| Warranty | 1 Year Official Brand Warranty | 1 Year Official Brand Warranty |
| Auto-off | 8 seconds without a finger | not published |
| Difference from a hinged brace | not published | Stays resist bending; hinges resist sideways movement. For ligament instability you need hinges |
| Display | Dual-colour LED, six orientations | not published |
| Finger size | Fits 0.3 to 1 inch thickness | not published |
| Known limitation | Nail polish, cold fingers and dark skin tone all reduce accuracy | not published |
| Material | not published | Four-way stretch fabric with a moisture-wicking lining |
| Patella | not published | Open, with a supportive buttress |
| Perfusion index | Not displayed -- so an unreliable reading looks like a good one | not published |
| Sizing | not published | Measured 10 cm above the knee centre |
| Stays | not published | Two flexible side stays -- not hinges |
Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.
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