Field conditions
Gloves
Capture buttons are large, the shutter is larger, list rows stay tall, and the Accept, Edit, and Dismiss buttons on each hint are large and well spaced, so destructive actions stay clear of the ones you tap most.
Glare / direct sun
High-Contrast is one tap in Capture. High-contrast mode uses solid borders and readable text; confidence levels carry an icon plus a word, never color alone.
Noise
Nothing critical depends on sound. Success, waiting, and error states are visual, textual, and haptic-capable; voice degrades to typing.
Dirty / wet hands
Capture is tap-first, onboarding is chip-pick, delete confirms before destruction, and voice entry on every text field gives the crew member a hands-busy path.
One-handed
The capture to finish flow keeps primary actions in thumb reach, including camera, notes, checklist, packet, and share checks.
Low battery
Capture is local-first, calculators use local table math, no forced sync runs during capture, and Reduce Motion plus High-Contrast reduce visual load.
Weak / no signal
Every primary action writes locally first. Offline capture, packets, exports, and running any calculation never wait on the network.
Cold / rain
No long-press is the only path, no precise drag is required, and visible buttons exist for reorder and recovery actions.
Hurry (3-second window)
Camera capture has no per-photo dialog; hints cost 0 extra taps and never interrupt capture. Every screen is kept deliberately short so capture is never interrupted.