Ultrahuman Ring AIR vs SHR K3 — Smart Ring Privacy + Price Comparison

Updated 2026-05-04 · Auditor: Tomás Maria Vaz de Noronha · Methodology: 3-pass forensic

TL;DR. Both rings target privacy-aware buyers who want subscription-free hardware. Ultrahuman ships from India ($120/mo subscription cost avoided) but has no published independent PCAP audit. SHR K3 (€129, Tier C Ainode audited) has a full public packet capture record with 6-dimension scoring. Different price tiers — but only SHR K3 has the audit transparency.

Side-by-side

Ultrahuman Ring AIRSHR K3 Smart Ring (Ainode)
Price€349€129
Subscriptionnone claimedNone
Manufacturer HQBengaluru, IndiaChina (audited)
Independent privacy auditNot in any public audit corpusTier C (audited) score 51/100
Auditor's findingHealth data shared with US servers — documented and disclosed to the user.
Public PCAP reportNot published/audits/shr-k3
Methodology disclosureVendor privacy policy onlyFull 3-pass methodology + 6-dimension scoring
Where to buyhttps://www.ultrahuman.com/ring//shop/shr-k3-smart-ring

What our audit found on the SHR K3 Smart Ring

Health data shared with US servers — documented and disclosed to the user.

Tier: C (score 51/100). Date audited: 2026-04-29. Auditor: Tomás Maria Vaz de Noronha. License: CC-BY-4.0. Methodology: 3-pass forensic network audit (DNS analysis + traffic surveillance + 6-dimension classification).

Full audit page → · All public PCAP reports →

What we DIDN'T audit

The Ultrahuman Ring AIR is not in Ainode's audit corpus. We don't make privacy claims about devices we haven't physically tested. We cite the vendor's stated practices and (where available) third-party reviews like Mozilla Privacy Not Included.

If you'd like Ainode to audit a specific device for your own use case, contact andre.mendonca@ainode.info.

Disclosure

Ainode sells the SHR K3 Smart Ring (€129). This page contains affiliate-style internal links to our shop. We do not sell the Ultrahuman Ring AIR and have no commercial interest in its sales — we link to the manufacturer for completeness only.

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