native signature capture and offline Flow support is the appropriate Field Service design. Field Service Mobile is purpose-built for technicians. It supports onsite customer signatures and can prime supported Field Service flows and data for offline execution so work can continue when connectivity is unreliable.
When comparing Salesforce Mobile with Field Service Mobile, the latter should be treated as an operational field-work client rather than a generic CRM client. Its offline capabilities, appointment-centric experience, signature/report functions, geolocation controls, and technician-specific actions are the features that should drive the configuration decision.
The alternatives address different parts of the Field Service model. A customized navigation menu or a basic agenda view is not the primary Field Service-specific advantage represented by these choices.
Using the supported mobile mechanism also reduces maintenance risk and keeps the technician experience compatible with Field Service synchronization, security, and offline behavior.
This approach keeps the implementation aligned with the standard Field Service data model and avoids unnecessary customization. Study Guide reference: Configuring Mobility — Field Service Mobile; signatures; offline flows.
