Complete Mobile Diagnostic
Phone Test – Test Your Phone Online
Check your phone's touchscreen, display, front and rear cameras, microphone, speaker, vibration support, motion sensors and browser-visible device information in one guided mobile diagnostic.
Complete Phone Test
Use this guided browser-based phone test to check ten observable phone functions and build a Phone Health Report. It is particularly useful as part of a used-phone inspection before buying or selling a device.
- Touchscreen
- Check touch-grid coverage and simultaneous pointer input.
- Screen
- Inspect solid white, black, red, green and blue views for pixel problems.
- Cameras
- Check front-facing and rear-facing camera previews where browser controls allow.
- Microphone
- View live input level and make a short local playback recording where supported.
- Speaker
- Play a test tone and confirm sound manually.
- Vibration
- Request a short vibration where the browser exposes the Vibration API.
- Motion sensors
- View browser-exposed orientation values where available.
- Screen information
- Review resolution, viewport, pixel ratio, orientation and estimated refresh rate.
- Device information
- Review browser-visible platform and capability information.
- Health report
- Mark each check Pass, Manual check or Problem.
How to Test Your Phone Online
- Open the Phone Test on the phone you want to check.
- Run the touchscreen and screen-colour checks.
- Allow camera or microphone access only when you intentionally start those tests.
- Check the front and rear cameras separately.
- Listen to the speaker tone and microphone playback.
- Try vibration and motion-sensor checks where supported.
- Review screen and device information.
- Mark each item and review the Phone Health Report.
What the Complete Phone Test Checks
Touchscreen Response
Draw across a grid and watch which parts receive browser touch or pointer input.
Screen and Pixel Test
Use solid colours to visually inspect for dead, stuck or inconsistent pixels.
Front and Rear Cameras
Request browser camera access and confirm live image, focus, exposure and framing.
Microphone and Speaker
Check microphone input level and optional playback, then play a speaker test tone.
Vibration and Motion Sensors
Try browser-exposed vibration and orientation events where the platform supports them.
Screen and Device Information
Review browser-visible display, viewport, platform and touch-capability information.
Browser Test vs Manual Phone Check
| Phone feature | Browser can help test? | How the result is confirmed |
|---|---|---|
| Touchscreen | Yes | Pointer and touch events plus visual grid coverage. |
| Dead or stuck pixels | Partly | The browser displays solid colours; you inspect the screen visually. |
| Front and rear cameras | Yes, when permission and camera selection are exposed | Live preview plus visual confirmation. |
| Microphone | Yes | Live input level and optional short playback. |
| Speaker | Partly | The browser plays a tone; you confirm sound quality. |
| Vibration | Sometimes | Support varies by browser and phone. |
| Motion or orientation | Sometimes | Browser-disclosed sensor values where permission allows. |
| Face ID or Touch ID | No direct diagnostic access | Use operating-system or manufacturer diagnostics. |
| Battery health | No reliable cross-browser health metric | Use system battery-health tools or specialist diagnostics. |
| NFC or charging electronics | Not suitable as a general browser diagnostic | Use device settings, accessories or hardware diagnostics. |
Use the Phone Test Before Buying a Used Phone
A browser diagnostic can help reveal obvious touchscreen, display, camera, microphone, speaker and sensor problems while you have the phone in hand. Also check charging, battery condition, physical buttons, Wi-Fi, Bluetooth, cellular service, account locks and physical damage separately.
What a Browser Phone Test Cannot Diagnose
A normal webpage does not have unrestricted access to internal phone hardware. This test therefore does not claim to diagnose Face ID, Touch ID, battery-cell health, NFC, charging circuitry or every internal component.
Phone Test Privacy
Camera and microphone permissions are requested only when those checks are started. Live media is handled in the browser, and a temporary microphone playback recording is kept locally for the current browser session rather than uploaded by this tool.
Phone Test Troubleshooting
- Use a modern browser over HTTPS. Camera, microphone and some sensors require a secure context.
- Check permissions. Allow the specific hardware permission only when you start that test.
- Run the page on the phone itself. Remote-control environments may not expose mobile hardware normally.
- Separate unsupported APIs from hardware faults. A missing browser API does not automatically mean the phone hardware has failed.
Phone Test Frequently Asked Questions
What is an online phone test?
An online phone test uses browser-accessible features to check parts of a phone such as the touchscreen, display, cameras, microphone, speakers, vibration support, motion sensors and screen information.
Can this test diagnose every phone hardware problem?
No. A webpage can only test hardware and sensors the browser exposes. Internal faults, battery-cell condition, charging circuitry and other restricted hardware require system diagnostics or specialist equipment.
Does the phone test work on iPhone?
Many checks work on iPhone, but Safari restricts some hardware APIs. Camera and microphone require permission, motion access can require a separate permission prompt, and vibration support is limited.
Does the phone test work on Android?
Many Android browsers expose camera, microphone, vibration, screen information and some motion events, but exact support depends on the phone, browser and permissions.
Can I test the touchscreen?
Yes. Draw across the touchscreen grid and watch cells change as touch or pointer input reaches them. Multi-touch information is also shown where the browser reports multiple active pointers.
Can I test for dead or stuck pixels?
The screen check shows solid white, black, red, green and blue views so you can visually inspect for pixels that remain the wrong colour. The final judgment is a manual visual check.
Can I test both front and rear cameras?
The page requests a camera with front-facing or rear-facing preference. Whether the browser can switch successfully depends on the cameras and media-device controls exposed by the phone.
Can I test the phone microphone?
Yes. The microphone check can display a live input-level meter. Where MediaRecorder is supported, it can also make a short local recording that you can play back.
Can I test my phone speakers?
Yes. The speaker check can play a browser-generated tone. You confirm manually whether the tone was audible and clear.
Can I test phone vibration?
The page can request a short vibration where the browser supports the Vibration API. Browsers that do not expose vibration will mark the feature as unsupported rather than treating that as a phone fault.
Can I test the accelerometer or motion sensor?
The page can listen for browser-exposed device-orientation events and display tilt values. Some platforms require explicit motion permission and some browsers expose no sensor values.
Can this page test Face ID or Touch ID?
No. Normal webpages do not receive raw Face ID or Touch ID diagnostic information, so the test does not claim to check biometric hardware.
Can this page test battery health?
Not reliably. Browser battery APIs are restricted or unavailable on many phones and do not provide the same battery-health information as operating-system diagnostics.
Can this page test NFC?
Not as a general cross-browser phone diagnostic. NFC access is restricted and inconsistent, so it is deliberately excluded from the main health score.
Is this useful before buying a used phone?
Yes as one part of a used-phone inspection. It can help you check browser-visible screen, touch, camera, microphone, speaker and sensor behaviour, but you should also inspect charging, battery condition, buttons, connectivity, account locks and physical damage.
Are camera and microphone recordings uploaded?
The live media streams used by this page are handled in your browser. A short microphone playback recording, when supported, is kept locally as a temporary browser object for the current session.
Why does a test show Manual check?
Some phone checks are inherently visual or audible. For example, the browser can display test colours or play a tone, but only you can confirm that every pixel looks correct or the speaker sounds clear.
What does the Phone Health Report mean?
The report summarises the statuses you recorded during this browser session. It is a practical checklist, not a manufacturer-certified hardware-health score.