Choosing between BYOD and provisioned devices for ePRO is not simply a hardware decision. It affects patient access, study costs, operational workload and the reliability of electronic patient-reported outcome data.
BYOD allows participants to complete assessments on their own smartphone or tablet. Provisioning gives them a study-dedicated device supplied by the sponsor or CRO.
Neither model is automatically better. The right choice depends on the study population, protocol, assessment schedule, countries involved and the ePRO platform’s ability to deliver a consistent experience across devices.
For many trials, the most practical answer is a hybrid strategy: BYOD for participants who can and want to use their own device, with provisioned devices available when needed.
What does BYOD mean for ePRO?
In a bring-your-own-device model, participants access the ePRO solution through their personal smartphone or tablet, usually via an application or web interface.
The main benefits of BYOD
BYOD can reduce the operational burden associated with purchasing, configuring, shipping and recovering study devices. Potential advantages include:
- lower hardware and logistics costs.
- Faster participant onboarding.
- No need to carry or charge an additional device.
- Greater familiarity with the device.
- Easier participation in long or decentralised studies.
- Fewer device-return activities at study closeout.
Familiarity can be particularly valuable. Patients already know how to unlock their phone, manage notifications and connect it to the internet. Removing an unfamiliar study device may make ePRO completion feel like a normal part of daily life.
The main challenges of BYOD
Personal device introduce technical variation. Screen size, operating system, browser version, security settings and notification behaviour may differ between participants.
Sponsors and CROs should evaluate:
- Supported operating systems and versions.
- Minimum screen requirements.
- Consistency of questionnaire presentation
- Compatibility testing across representative devices
- Security and authentication controls
- Application update management
- Behaviour during poor connectivity
- Technical support for different device configurations
The question is therefore not whether every device is identical. It is whether relevant variations could change how participants understand or complete an assessment.
Key risk: a broad “works on any device” claim without documented technical boundaries, testing coverage or fallback procedures.
ACTide ePRO uses a responsive interface designed to adapt content across smartphones, tablets and desktop devices. It also supports multilingual interfaces, device notifications and direct collection of patient-reported data.
What do provisioned devices mean for ePRO?
With a provisioned-device model, the sponsor or CRO supplies participants with a smartphone or tablet configured specifically for the study.
The device may be distributed by the site or shipped directly to the participant, depending on the study model.
The main benefits of provisioned devices
Provisioning creates a more controlled technical environment. Every participant can receive the same or an equivalent device configuration. This can simplify:
- device and operating-system testing.
- Questionnaire display verification.
- Application configuration.
- Security controls.
- Troubleshooting procedures.
- Training materials.
- Technical support.
Provisioning also avoids excluding participants who do not own a compatible device, have limited data connectivity or prefer not to use a personal phone for research.
The main challenges of provisioned devices
Greater technical control comes with additional operational work. Sponsors and CROs may need to manage:
- device purchasing or rental.
- Configuration and inventory.
- International shipping and customs.
- Local connectivity or SIM cards.
- Replacement of lost or damaged devices.
- Cleaning and reuse.
- Device recovery at the end of the study.
- Secure deletion of study data.
Participants also need to remember to carry, charge and check a second device. If the study phone remains in drawer, the theoretical consistency of the model will not improve actual completion.
Key risk: evaluating only the device price while overlooking configuration, shipping, support, replacement and return costs.
When comparing options, request a protocol-based demonstration of ACTide ePRO to assess how the patient journey will work on the devices expected in your target population.
Regulatory and validation considerations
Regulators focus less on device ownership than on whether electronic systems and records are trustworthy, reliable and fit for their intended purpose.
The FDA’s final guidance on electronic systems, electronic records and electronic signatures in clinical investigations addresses responsibilities for electronic systems used by sponsors, CROs and other trial stakeholders.
In Europe, the EMA guideline on computerised systems and electronic data in clinical trials explicitly covers eCOA and BYOD environments. It calls for risk-proportionate validation, data integrity throughout the data lifecycle, adequate security and controls for different hardware, operating systems and applications.
Does a BYOD study require every personal phone to be validated?
Not in the same way that a fixed inventory of provisioned devices might be tested individually.
The sponsor should instead document a risk-based approach covering the intended ePRO configuration and representative supported environments. This may include:
- supported device specifications.
- Operating-system and browser compatibility.
- Testing across relevant screen sizes.
- Questionnaire rendering.
- Data transfer and synchronisation.
- Authentication and access restoration.
- Timestamp and metadata management.
- Security risks associated with personal devices.
- Procedures for unsupported or updated operating systems.
For provisioned devices, validation should reflect the actual hardware and software configuration used in the trial, including controlled updates and replacement devices.
Measurement equivalence must be considered
The key question is whether device variation could affect participants’ interpretation or responses.
A published randomised equivalence trial comparing BYOD, provisioned devices and paper found equivalence across the response-scale types studied. Separate research involving participants with chronic obstructive pulmonary disease also explored the comparability of BYOD and provisioned-device completion.
These findings support the feasibility of BYOD, but they do not remove the need for study-specific assessment. Complex response formats, small screens, accessibility needs or substantial changes from the validated instrument may require additional evidence.
Protect the full data journey
Device controls are only one part of validation. Teams must also understand how a response moves from the patient interface to the clinical database.
The ACTide eCRF includes audit trails, controlled user profiles, alerts and real-time exports. ACTide ePRO stores patient-reported information directly in the eCRF database, reducing the need to reconcile disconnected ePRO and EDC repositories.
How device choice affects patient compliance and experience
Compliance depends on more than reminders. Patients must be able to access, understand and complete an assessment at the required time with minimal friction.
BYOD can improve convenience because the participant’s phone is usually close at hand. However, it may disadvantage people who:
- do not own a compatible device.
- Share a phone with another person.
- Have limited mobile data or connectivity.
- Use an older operating system.
- Have concerns about privacy or personal data usage.
- Need accessibility features not supported by the application.
Provisioned devices provide more consistent access but introduce different barriers. Participants must learn a new device, keep it charged and remember to carry it when assessments are due.
Consider the actual study population
For older or less digitally confident participants, familiarity with a personal device can help—but only if the interface is simple and accessible. Some patients may instead feel more comfortable using a preconfigured device with clear training and dedicated support. Other factors can also affect usability:
- visual or motor impairments.
- Cognitive burden.
- Disease severity and fatigue.
- Questionnaire length.
- Frequency and timing of assessments.
- Authentication requirements.
- Language availability.
- Access to caregivers.
Do not infer digital ability from age alone. Representative usability testing and early patient input provide better evidence than demographic assumptions.
A strong ePRO solution should maintain clear navigation and questionnaire presentation across supported devices while allowing the study team to monitor completion in real time. This is where responsive design and integrated data collection become more important than the BYOD label itself.
Which factors should drive the decision?
The choice between BYOD and provisioned devices should follow a documented assessment of the protocol, population and operational environment.
Study population
Assess device ownership, digital confidence, accessibility requirements, connectivity and willingness to use a personal device.
A BYOD-only model may unintentionally create participation barriers if compatible-device ownership is uneven across countries or socioeconomic groups.
Therapeutic area and assessment design
Short, familiar questionnaires may be well suited to BYOD. Complex instruments, detailed diagrams or assessments requiring specific display characteristics may benefit from tighter device control.
The patient’s condition matters too. Symptoms affecting vision, dexterity, concentration or energy can change which device and interface are easiest to use.
Study duration and assessment frequency
For a long study with frequent at-home reporting, asking participants to maintain a separate device may create unnecessary burden. BYOD may be more convenient.
Provisioning may remain appropriate when assessments are infrequent, conducted primarily at the site or require a controlled configuration.
Countries and logistics
A global study must consider local device availability, mobile connectivity, shipping times, customs, data plans, language support and technical assistance.
The cheapest strategy in one country may not be the most efficient across a multicentre trial.
Total cost, not just device cost
A complete ePRO solution comparison should include:
- hardware and accessories.
- Configuration and validation.
- Shipping and customs.
- Connectivity.
- Technical support.
- Replacements.
- Compatibility testing.
- Site and patient training.
- Device recovery and data deletion.
BYOD can reduce hardware expenditure but may require broader compatibility testing and support. Provisioning can simplify the technical environment while increasing logistics costs.
Platform flexibility
The chosen platform should support the device strategy without fragmenting clinical data.
The ACTide Ecosystem brings ePRO and wider clinical data-management capabilities into a connected environment. This helps CROs evaluate device strategy as part of the overall data flow rather than as a separate technical decision.
In many studies, a hybrid approach offers the most resilient solution: participants use their own devices where appropriate, while an equivalent provisioned option protects access and continuity.
Quick checklist: what should sponsors ask before choosing?
Before finalising the device strategy, sponsors and CROs should answer four questions:
-
Can every eligible participant access and use the selected solution?
Consider device ownership, accessibility, digital confidence and connectivity. -
Can we demonstrate consistent and interpretable data collection?
Review questionnaire presentation, supported devices, compatibility testing and measurement equivalence. -
What happens when the preferred model fails?
Define procedures for lost devices, unsupported operating systems, connectivity problems and participant preference changes. -
What is the real operational cost?
Include validation, support, logistics, replacements, site workload and data reconciliation—not only hardware expenditure.
There is no universal winner in the BYOD vs provisioned devices debate. The best strategy is the one that protects participant access, preserves data quality and remains operationally sustainable throughout the trial.
Request a personalised ACTide demo to evaluate the ePRO patient journey, device compatibility and integrated data flow against your study requirements.