Device details at a glance
Review available model, OS, display, memory, storage, battery, and charging data with its source.
Used phone trade · Guided device checksDevice Check Assistant
Check first. Trade with clarity.
Review the device information available from the operating system, then work through the functions that matter. Every result explains its evidence, helping both sides make a clearer decision before money changes hands.
No account neededPermissions requested only when relevant
9 areasof essential checks
4 statesfor evidence sources
No accountneeded to begin
On deviceinspection records
A clearer inspection order
From device profile to guided checks in three steps
Device Check Assistant does not hide everything behind a one-tap pass. System data, interactive tests, manual judgment, and unavailable data stay visibly distinct.
- 01
Review the device profile
See the available model, OS, display, memory, storage, battery, and charging information in one place.
- 02
Follow each guided check
Work through display and touch, cameras, audio, buttons, storage, sensors, biometrics, and location.
- 03
Understand the evidence
Distinguish system-read facts, user-confirmed tests, manual judgment, and platform limitations.
Built for a real handover
Not an inflated test count. A clearer view of what matters.
The app turns the information and actions buyers and sellers care about into a practical pre-trade checklist.
Guided hardware checks
Test the screen, cameras, microphone, speaker, buttons, and sensors without memorising a diagnostic routine.
Evidence, not a black box
Each conclusion shows whether it came from the system, an interaction, manual judgment, or an OS limitation.
Permission only when needed
Basic checks work without an account. Protected access is requested only when you open the related test.
The real app
Designed for quick checks during a handover
These are real Device Check Assistant screens, from the inspection list and device profile to a guided test and its evidence-backed result.
Honest about its limits
A pre-trade self-check, not an official manufacturer diagnosis
Public operating-system APIs cannot reveal every part of a phone's history. Some conditions still require a physical inspection, repair documents, or professional equipment.
- Cannot automatically verify whether parts are original
- Cannot retrieve a complete repair or liquid-damage history
- Does not replace professional inspection, certification, or a price guarantee
Check before you trade
Keep the inspection flow in your pocket
Use the checklist during an in-person purchase or before listing your own device, then keep the results on hand.
The download build is being prepared
Available builds, download channels, and system requirements are shown on this page.