## 3 Results
This suggests that individual consistency in accelerometer readings is notably higher compared to variability between different individuals. Consistent measurements can be observed in Figure 8 pertaining to the gyroscope of the smartwatch. The graph displays distinct peaks in the gyroscope readings, indicating repetitive patterns occurring at certain time intervals throughout identical user attempts. This becomes especially evident when examining the rotation rate of the gyroscope along the X-axis as shown by the blue lines on the graph. Similar trends are visible on the Y and Z axes, indicating consistent movement patterns across different directions. Figure 7: Smartwatch accelerometer data show variations in acceleration between users along all 3 axes. The phrase “_We trust you_” was written on the tablet by 3 distinct test subjects using a stylus. In comparison to the acquired accelerometer readings, the gyroscope measurements from Table 4 show similar trends with intra-person variability again being notably lower than inter-person variability. For example, when using a stylus, the intra-person variability for the magnitude is 198.83, whereas the inter-person variability is much higher at 495.22. Similarly, when using a finger, the intra-person variability for the magnitude is 162.89 compared to an inter-person variability of 405.33. For both devices, the intra-person variability is lower than the inter-person variability across all axes (X, Y, Z) and the magnitude whether using a stylus or a finger. This pattern confirms that individual measurements are more consistent within the same individual across various trials than between different individuals, which is similar to the findings from accelerometer data. \begin{table}
\begin{tabular}{l l l l l l} \hline \hline  & & & **Stylus** & & **Finger** \\ \hline \hline
**Measurement** & **Axis** & **Intra-Person** & **Inter-Person** & **Intra-Person** & **Inter-Person** \\ \hline \multirow{4}{*}{Accelerometer [m/s\({}^{2}\)]} & X & 4.19 & 20.91 & 4.56 & 17.23 \\ \cline{2-6}  & Y & 8.58 & 110.47 & 8.33 & 78.13 \\ \cline{2-6}  & Z & 8.01 & 58.35 & 6.05 & 94.59 \\ \cline{2-6}  & Magnitude & 8.50 & 117.23 & 4.70 & 124.68 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Comparison of intra-person and inter-person measurements for stylus and finger using data obtained from an accelerometer. 5 participants in the experiment wrote the same phrase, “We trust you”, over 5 different attempts. Figure 8: The gyroscope time-series sensor data were acquired from a smartwatch throughout the period during which 3 distinct individuals wrote the phrase “_We trust you_” onto the tablet device. A stylus was used in order to write the sentence. Figure 9 depicts five attempts by four distinct users to compose the same phrase \"We trust you\". Different time intervals of writing gestures are represented by blue rectangles, whereas delays between gestures are indicated by the white spaces. The term \"gesture\" denotes the period that has passed between placing the stylus on the screen and lifting it off. It may include the act of writing a single character, such as a letter, period, or comma, as well as multiple characters when the user combines them while writing. Since each user forms letters or words distinctly, it becomes feasible to illustrate the variations in the writing processes among different users. This also shows how variances in the duration of specific gestures and the pause intervals between gestures persist among users who have composed identical phrases. Table 5 illustrates the variability in relative position measurements along the X and Y axes for stylus and finger inputs, highlighting intra-person and inter-person differences during writing tasks. As mentioned, relative X and Y give the coordinates relative to the specific view that received the event, which was measured from the top-left corner of that view. Thus, relative coordinates are confined to the view's space within the application.