BLE-AoA vs UWB for healthcare RTLS — which fits.

Hospital use cases stack at different accuracy tiers. Room-level: asset finding, broad workflow attribution, patient location for billing. Bed-level: infant protection, equipment association with patient, fall prevention, medication-administration record matching.

Sub-decimetre: hand-hygiene compliance with confirmed point-of-care attribution, surgical-instrument tracking. UWB delivers all three. BLE-AoA delivers room and bed comfortably; sub-decimetre is harder but possible in dense deployments.

Hospitals have hundreds to thousands of tagged staff, patients, beds and assets. BLE-AoA tags: 2–5 years on a coin cell. UWB tags: months to two years depending on update rate.

For a hospital fleet of 3,000 active tags, BLE-AoA's longer battery life reduces operational burden by 10× or more. Many large hospitals reject UWB on operational-overhead grounds even when accuracy is competitive.

BLE-AoA wins: most asset tracking; clinical workflow attribution; bed-level infant protection (Quuppa-based systems are mainstream); broad hand-hygiene at room-level; equipment-utilisation analytics.

UWB wins: sub-decimetre hand-hygiene with confirmed point-of-care; surgical-instrument tracking; critical-care patient location with millisecond latency; high-density labour-and-delivery infant tagging.

Most hospital deployments mix both — UWB in the few zones that need it, BLE-AoA everywhere else.

BLE-AoA / multi-tech healthcare RTLS: Quuppa (BLE-AoA underlay), CenTrak (multi-tech: low-frequency RF + BLE + Wi-Fi; market leader in hospital RTLS), Stanley AeroScout (Wi-Fi based, healthcare-specific), Sonitor (ultrasound for bed-level certainty), Midmark RTLS.

UWB healthcare: BeWhere, Sewio (industrial-leaning but used in hospitals), Decawave-platform vendors. Most large hospital RTLS deployments are CenTrak or Stanley AeroScout for the broad footprint, with UWB or ultrasound for the few zones needing sub-decimetre.

Both ecosystems integrate into Epic, Cerner / Oracle Health, Meditech, Allscripts via standard interfaces (HL7 v2, FHIR, vendor-specific APIs).

Clinical workflow attribution ("who saw which patient when") requires correlating tag events with appointment data — the integration architecture matters more than the underlying radio.

We design integration in stage 1 — see /integrations/epic and /integrations/cerner-oracle-health.

Default to BLE-AoA for new hospital RTLS deployments where broad coverage matters: asset finding, workflow, infant protection, room-level hand hygiene. The operational advantage of multi-year battery life is decisive at hospital scale.

Add UWB in specific zones where sub-decimetre accuracy is non-negotiable: high-acuity hand hygiene with confirmed POC, surgical-instrument tracking, critical-care location.

Consider multi-tech RTLS (CenTrak, Stanley AeroScout) when you want a single platform vendor covering the full breadth — accepting that no single radio does everything optimally.

In hospitals the decision is clinical workflow first, radio second. BLE-AoA (Quuppa-class and partner stacks) typically delivers sub-metre tracks with favourable tag cost and battery life. UWB delivers tighter accuracy — often 10–30 cm class — and cleaner behaviour in RF-harsh pockets, at higher infrastructure and tag cost. IR-hybrid clinical-grade systems (for example CenTrak) still win where unambiguous room certainty beats continuous coordinates.

Map each use case to an accuracy and certainty SLO: asset findability, hand hygiene, patient flow, staff duress, infant protection, OR tool control. One radio rarely covers an entire academic medical centre. Also score EHR integration depth, infection-control tag policies, badge adoption and 24/7 support expectations.

• Enterprise-wide asset and staff visibility where sub-metre is enough and tag volume is high.
• Battery life and tag form-factor variety dominate nursing adoption.
• Budget cannot fund dense UWB anchors across every ward and corridor.
• Partner healthcare applications already sit on BLE-AoA engines your clinicians will use.

• OR, cath lab or high-acuity zones need decimetre-class position or reliable proximity automation.
• Metal-dense clinical environments defeat BLE-AoA multipath budgets in validation.
• Safety interlocks or simulation/training use cases need UWB-grade latency and accuracy.
• Hybrid designs place UWB only where the SLO demands it and keep BLE elsewhere.

Trap: hospital-wide UWB when most value is ward-level asset findability. Trap: BLE everywhere then discovering infant protection or OR needs a different certainty model. Trap: ignoring EHR integration and badge workflow — software often exceeds radio CapEx. Trap: no infection-control-approved cleaning and attachment policy. Trap: pilots on empty floors without clinical multipath and Wi-Fi coexistence tests. Trap: underestimating tag loss and replacement rates on busy wards.

TRACIO recommends by SLO and workflow, not by a preferred clinical RTLS brand.

Many high-performing hospitals do not pick a single radio for every building. They place IR or clinical-grade certainty where room identity is the control (hygiene attribution, certain infant workflows), BLE-AoA or strong BLE platforms for enterprise asset and staff visibility, and UWB only in theatres or labs that fail BLE validation. Wi-Fi analytics may still inform occupancy without pretending to be RTLS.

Integration is the long pole: Epic or Cerner events, CMMS work orders, real-time location on nurse phones, and privacy governance for staff tracking. Budget the software and change management alongside anchors. TRACIO scopes by clinical SLO and does not resell CenTrak, Securitas, Kontakt.io, Quuppa or UWB brands.

Require two-week parallel runs with real carts, pumps and badges. Measure findability time, false room crossings, battery drain and alert fatigue. If a vendor refuses production-metal testing, treat the brochure accuracy as marketing. Infection-control must approve tag materials before volume buy.

Choose BLE-AoA for hospital-wide sub-metre programmes with tag economics that scale; choose UWB for zones that fail BLE validation or need tighter automation; keep IR-hybrid clinical-grade options where room certainty is the control. Hybrid radio maps beat single-vendor dogma. TRACIO scores clinical SLOs without reseller bias.

In hospitals the decision is clinical workflow first, radio second. BLE-AoA (Quuppa-class and partner stacks) typically delivers sub-metre tracks with favourable tag cost and battery life. UWB delivers tighter accuracy — often 10–30 cm class — and cleaner behaviour in RF-harsh pockets, at higher infrastructure and tag cost. IR-hybrid clinical-grade systems (for example CenTrak) still win where unambiguous room certainty beats continuous coordinates.

Map each use case to an accuracy and certainty SLO: asset findability, hand hygiene, patient flow, staff duress, infant protection, OR tool control. One radio rarely covers an entire academic medical centre. Also score EHR integration depth, infection-control tag policies, badge adoption and 24/7 support expectations.

• Enterprise-wide asset and staff visibility where sub-metre is enough and tag volume is high.
• Battery life and tag form-factor variety dominate nursing adoption.
• Budget cannot fund dense UWB anchors across every ward and corridor.
• Partner healthcare applications already sit on BLE-AoA engines your clinicians will use.

• OR, cath lab or high-acuity zones need decimetre-class position or reliable proximity automation.
• Metal-dense clinical environments defeat BLE-AoA multipath budgets in validation.
• Safety interlocks or simulation/training use cases need UWB-grade latency and accuracy.
• Hybrid designs place UWB only where the SLO demands it and keep BLE elsewhere.

Trap: hospital-wide UWB when most value is ward-level asset findability. Trap: BLE everywhere then discovering infant protection or OR needs a different certainty model. Trap: ignoring EHR integration and badge workflow — software often exceeds radio CapEx. Trap: no infection-control-approved cleaning and attachment policy. Trap: pilots on empty floors without clinical multipath and Wi-Fi coexistence tests. Trap: underestimating tag loss and replacement rates on busy wards.

TRACIO recommends by SLO and workflow, not by a preferred clinical RTLS brand.

Many high-performing hospitals do not pick a single radio for every building. They place IR or clinical-grade certainty where room identity is the control (hygiene attribution, certain infant workflows), BLE-AoA or strong BLE platforms for enterprise asset and staff visibility, and UWB only in theatres or labs that fail BLE validation. Wi-Fi analytics may still inform occupancy without pretending to be RTLS.

Integration is the long pole: Epic or Cerner events, CMMS work orders, real-time location on nurse phones, and privacy governance for staff tracking. Budget the software and change management alongside anchors. TRACIO scopes by clinical SLO and does not resell CenTrak, Securitas, Kontakt.io, Quuppa or UWB brands.

Require two-week parallel runs with real carts, pumps and badges. Measure findability time, false room crossings, battery drain and alert fatigue. If a vendor refuses production-metal testing, treat the brochure accuracy as marketing. Infection-control must approve tag materials before volume buy.

Choose BLE-AoA for hospital-wide sub-metre programmes with tag economics that scale; choose UWB for zones that fail BLE validation or need tighter automation; keep IR-hybrid clinical-grade options where room certainty is the control. Hybrid radio maps beat single-vendor dogma. TRACIO scores clinical SLOs without reseller bias.