Phone Check - Device Test

Phone Check lets you test your phone's sensors, screen, sound, battery, camera and network one by one.
It shows the measured values as they are, and saves your results so you can compare them next time.

■ Full Check
Run many checks in order, all at once. When you finish, the results are saved automatically.

■ Check history
• Browse results by check date.
• See values that changed since your last check, shown as previous value → current value.
• View charts of charge cycles, estimated full capacity and free storage over time.
• Copy your results as text.
• History is stored only on your phone.

■ Sensors
Accelerometer, gyroscope, light sensor, magnetic field sensor (compass), barometer (altitude estimate) and proximity sensor, with live charts.

■ Screen & Touch
Display colors and brightness, solid color screens (dead pixel check), rotation and resolution, multi-touch count, refresh rate measurement, touch position and path

■ Sound & Vibration
Speaker test, left/right stereo check, tones by frequency, microphone input level, vibration motor test

■ Battery & System
Battery info (level, charging status, temperature), CPU info, memory usage, storage, Android version, device uptime

■ Camera & Flashlight
Camera specs (megapixels, supported resolutions, lens info), front and rear preview, zoom and tap to focus, flashlight on/off and blinking

■ Network
Wi-Fi, mobile data and internet connection, Bluetooth, NFC, GPS location and accuracy

■ Great for
• Checking that your phone's features work
• Checking a used phone before you buy or sell it
• Keeping a record of how your battery and storage change over time

※ Sensors or features your device doesn't have are shown as "Not on this device."
※ Available in English, Korean and Vietnamese.

Recent changes:
• Check history: Full Check results are saved automatically, and you can compare them with your previous checks.
• Trend chart: See how charge cycles, estimated full capacity and free storage change over time.
• Results now focus on measured values.
• Section colors: Sensors, Screen & Touch, Sound & Vibration and other sections each have their own color.
• Vietnamese language support.
• Redesigned exit screen.