Accelerometer Test
Measure gravity and linear acceleration in real-time. Use the bubble level to check if your device is perfectly flat.
How Smartphone Accelerometers Work & How to Calibrate Them
An accelerometer is a Micro-Electro-Mechanical Systems (MEMS) sensor built onto your smartphone's motherboard. It continuously measures proper acceleration — the rate of change of velocity relative to free-fall — along three spatial axes: X (lateral side-to-side), Y (longitudinal forward and backward), and Z (vertical up and down). Accelerometers are the foundational sensor for screen auto-rotation, step counting in fitness apps, shake gestures, and vehicle crash detection. This tool displays real-time raw values (in meters per second squared, m/s²) and gravity vector offsets. Regular diagnostic verification ensures that your hardware operates at peak factory specifications and delivers reliable performance across gaming and professional tasks.
Understanding Gravity Offsets & Axis Calculations
When your phone is placed flat on a level table, the X and Y axes should read near 0 m/s², while the Z axis will read approximately 9.81 m/s² (representing Earth's standard gravitational acceleration pointing downward). Lifting or tilting your device shifts the gravitational force across the axes. If your phone is resting on a completely flat surface and any axis shows significant deviation (e.g. X > 0.5 m/s²), your sensor may require software recalibration in your device settings. Utilizing standardized browser benchmarks eliminates the guesswork from troubleshooting, giving you real-time data to optimize your setup without third-party software.
Diagnosing Sensor Jitter & Mobile Gaming Responsiveness
In mobile racing games (like Asphalt or Real Racing) and flight simulators, tilt steering accuracy depends on smooth accelerometer data streams without erratic jitter or sudden signal dropouts. By monitoring our real-time visual coordinate graph, you can easily spot sensor drift, frozen axes, or hardware noise that could negatively affect your gaming experience. Whether you are fine-tuning hardware parameters, calibrating settings, or inspecting for defects, our tools run with sub-millisecond precision directly on your device.
Frequently Asked Questions
Everything you need to know about this tool and benchmarks