This section summarizes the different categories and types of wearable devices based on Table 2 of Ometov et al. (2021). The devices are grouped into four main categories: Head-Mounted, Wrist/Hand-Held, Upper-Body, and Lower-Body.
Each device includes a short description of what it does and three example products. The goal is to give a clear overview of how wearable technology is used across different parts of the body and in different everyday or professional applications.
Head-Mounted
Head-Mounted Devices are characterized by their close interaction with human sensory perception, particularly vision and hearing. To qualify as head-mounted, a device must be worn on or near the head and provide direct sensory input, feedback, or enhancement. These systems emphasize immersion, perceptual augmentation, or neural interfacing.
Wrist/Hand-Held
Wrist and Hand-Held Devices are defined by their accessibility and immediacy of interaction. They are typically compact, easy to operate, and focused on continuous monitoring or short, frequent engagement. A device in this category must be conveniently wearable or portable while supporting personal data tracking or direct user control.
Upper-Body
Upper-Body Devices qualify through their integration into clothing or accessories that cover the torso, neck, or arms. Their defining qualities include continuous contact with the body, comfort, and the ability to collect biometric data or deliver tactile feedback without restricting movement. These devices must function seamlessly as part of the user’s everyday wear.
Lower-Body
Lower-Body Devices are distinguished by their focus on movement, stability, and internal or lower-body sensing. To fit this category, a device must either interact with the body’s motion system—such as tracking gait and posture—or gather data from within the body itself. They emphasize durability, precision, and unobtrusive operation during physical activity.