Verdict: Tier C — risk score 51/100.
Health data shared with US servers — documented and disclosed to the user.
| Device | SHR K3 Smart Ring |
|---|---|
| Privacy tier | Tier C |
| Risk score | 51/100 (lower is more private) |
| Audit date | 2026-04-29 |
| Auditor | Tomás Maria Vaz de Noronha |
| Methodology | 3-pass forensic network audit (DNS + traffic + 6-dim classification) |
| License | CC-BY-4.0 — free re-use with attribution |
| PCAP availability | Anonymised, on request to bona-fide researchers |
Health data shared with US servers — documented and disclosed to the user.
This finding is based on a 3-pass forensic network audit conducted in an isolated network environment in Lisbon, Portugal. The methodology captures every DNS query, monitors total traffic during active and idle states, and classifies each contacted domain across 6 dimensions (GDPR, surveillance, tracking, minimization, transparency, traffic-behaviour).
Sold by Ainode — Tier C (Privacy Disclosed). All data flows are documented and disclosed to the buyer at point of sale.
All 8 audited devices → /reviews