## 5 Results and Discussion
### Evaluation Method 1: Heuristic Evaluation Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline  & \multicolumn{6}{c}{**Severity**} & \multicolumn{6}{c}{**Severity**} \\ \cline{3-10}
**ID** & **Heuristics** & \multicolumn{3}{c}{**Galaxy Watch 4**} & \multicolumn{3}{c}{**Frequency**} & \multicolumn{3}{c}{**Galaxy Watch 5**} & \multicolumn{3}{c}{**Frequency**} \\ \cline{3-10}  & **Cosmetic** & **Minor** & **Major** & **Disastrous** & & **CosmeticMinor** & **Major** & **Disastrous** & \\ \hline H1 & Self-Descritiveness & 3 & 0 & 0 & 0 & 3 & 1 & 0 & 0 & 0 & 1 \\ H2 & Consistency and Standards & 2 & 0 & 0 & 0 & 2 & 4 & 0 & 0 & 0 & 4 \\ H3 & Aesthetic and Minimalist Design & 1 & 2 & 1 & 0 & 4 & 2 & 1 & 0 & 0 & 3 \\ H4 & Reduce Short Term Memory Load & 4 & 1 & 3 & 0 & 8 & 1 & 1 & 1 & 0 & 3 \\ H5 & Match Between System and Real-world & 5 & 1 & 0 & 1 & 7 & 2 & 0 & 0 & 0 & 2 \\ H6 & Error Tolerance & 7 & 0 & 2 & 0 & 9 & 6 & 1 & 0 & 0 & 7 \\ H7 & Privacy & 2 & 0 & 0 & 0 & 2 & 2 & 0 & 0 & 0 & 2 \\ H8 & Ease of Use & 8 & 1 & 2 & 0 & 11 & 7 & 1 & 0 & 0 & 8 \\ H9 & Flexibility and Efficiency of Use & 1 & 2 & 1 & 0 & 4 & 3 & 2 & 0 & 0 & 5 \\ H10 & Features & 2 & 5 & 0 & 0 & 7 & 4 & 2 & 0 & 0 & 6 \\ H11 & Satisfaction & 4 & 4 & 1 & 0 & 9 & 4 & 1 & 0 & 0 & 5 \\  & Total & 39 & 16 & 10 & 1 & 66 & 36 & 9 & 1 & 0 & 46 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Usability issues encountered by evaluators with severity for the Galaxy watches. handles always-on displays and other tasks while consuming very little power [62]. This architecture also manages heart rate and notifications in the background more easily. The heuristic evaluations observed that it has a great UI design as compared to other watches. The Galaxy Watch 4's UI design combines the look and feel of Samsung's Tizen platform and Wear OS [63]. The watch has a virtual rotating bezel, two buttons on the right-hand side, and a colorful and intuitive interface that allows for easy navigation and customization. Watch 4 has a redesigned notification system that allows more actions and interactions, including a more consistent and seamless experience across Samsung devices, such as syncing settings, installing apps, and transferring data. The customizable watch face editor allows you to choose from various customization options, colors, and styles. The simplified settings menu is easier to navigate and adjust [64], again allowing user customization, including gesture features that are so sensitive that even moving the wrist can swipe up or down the layout on the watch. A few evaluators commented that its haptic bezel is not very smooth. The one other design feature is the access strap tucked underneath the wrist strap; therefore, there is no extra flap that can bother the user, dangle, or become lost. This is conclusively a good design approach and increases its wearability. Samsung Galaxy Watch 5 (GW5) has the same chipset, RAM, and storage as in the GW4. The main difference is its battery size. The watch has 284 milliampere per hour (MAH), which offers 40 h of battery life. However, it was noted by evaluators that it has 100% battery and stays live for around 32 h, with a touch-sensitive bezel for easy navigation, as in the GW4. Another difference is the Bluetooth version, which is upgraded to 5.2. The GW4 uses a C-type cable to charge and provides a 45% charge in 30 min. According to the evaluators, it also has sapphire glass upgraded from gorilla glass, which provides a more solid and expensive feel. Fitbit Versa 2 only weighs 40 gm, which makes it comfortable to wear; however, the Samsung watches weigh less. Versa 2 provides a voice input feature in the watch to set timers and reminders using Alexa. The evaluators observed that its voice recognition was more than 95% effective. The evaluators found completing tasks with it was quite easy and fast, and the system information was understandable, as shown in Table 5. For example, the Fitbit obtained the highest score for the heuristic relating to flexibility and efficiency of use.