iHealth
iHealth Track KN-550BT
$39.99Cheaper
Released 2016
Best Blood Pressure Monitors · head-to-head
A sourced, side-by-side comparison. iHealth Track KN-550BT is cheaper at $39.99. Every spec and price links to its source.
iHealth
$39.99Cheaper
Released 2016
Welch Allyn
$119.99
On the specs we track, they're closely matched. The iHealth Track KN-550BT is the cheaper at $39.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $39.99 | $119.99 |
| Brand | iHealth | Welch Allyn |
| Released | 2016 | — |
| Type | upper_arm | upper_arm |
| Cuff range (in) | 8.6–18.9 in | 8.7–16.5 in |
| Memory readings | 99 | — |
| User profiles | 1 | — |
| Bluetooth app | Yes | Yes |
| Irregular heartbeat detection | Yes | Yes |
| Clinically validated | Yes | Yes |
| Release | 2016 | — |
Sources — iHealth Track KN-550BT: medgrade.org (verified 2026-06-19). Welch Allyn Home 1700 Series: hillrom.com (verified 2026-06-19).
Where the two actually differ on the specs we track (1 of 7). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Thin coverage: only Wirecutter's fetchable text covers this exact model, and it is negative — in hands-on testing the iHealth Track "produced inconsistent readings in our tests," so it missed their picks. TechGearLab's page was unreachable during harvest, and Consumer Reports, Forbes Health, and MedGrade fall outside the genuine-tester whitelist. Treat this single-source verdict cautiously. (1 sourced review, 1 lab-tested.)
Flagged: Inconsistent readings in Wirecutter's hands-on testing kept it out of their recommended picks.
No sourced tester review yet.