| Era | Digital Age |
| Type | Wearable device |
| Usage | Athletic and general use |
| Design | Wrist-worn |
| Features | Notifications • Reminders • Basic smartphone interactions • Limited fitness tracking • Heart rate monitor (select models) |
| Function | Companion to smartphones |
| Connectivity | Bluetooth, NFC, Wi-Fi |
| Manufacturers | |
| Related devices | |
| Operating Systems | Apple WatchOS • Android Wear • Tizen • AsteroidOS |
