## Common ground
All are wrist-worn electronic devices that track health and activity data, often used for fitness and personal monitoring.
## Options at a glance
**8517.13 – Phone communication via eSIM/SIM**
- **Defining trait:** Can make calls independently using an embedded SIM (eSIM) or physical SIM card.
- **Typical examples:** Apple Watch Series 8 with cellular, Samsung Galaxy Watch 6 Classic LTE.
- **Best fit when:** The watch can connect to a mobile network without needing a paired phone.
**8517.62 – Calls via paired smartphone**
- **Defining trait:** Relies on a connected smartphone to make calls; no standalone cellular capability.
- **Typical examples:** Apple Watch (non-cellular), Fitbit Sense (without LTE).
- **Best fit when:** The device only functions with a paired phone for calls and data.
**9102.12 – Basic fitness tracker without SIM/NFC**
- **Defining trait:** No cellular or NFC function; limited to time, date, and basic health metrics.
- **Typical examples:** Fitbit Charge 6 (non-NFC), Garmin Vivosmart 5.
- **Best fit when:** The device only tracks fitness data and displays time—no connectivity beyond Bluetooth.
## Key differences
| Feature | 8517.13 | 8517.62 | 9102.12 |
|-----------------------|---------------------|----------------------|------------------------|
| Independent calls | Yes (eSIM/SIM) | No | No |
| NFC function | May have | May have | No |
| Primary use | Communication + fitness | Fitness + phone tethering | Fitness only |
## How to choose
- Does the watch make calls without a phone? → 8517.13
- Does it need a paired smartphone to make calls? → 8517.62
- Does it lack SIM, NFC, and call features entirely? → 9102.12
## Overlaps & pitfalls
- A watch with eSIM may also track fitness (overlaps 8517.13 and 9102.12), but the presence of eSIM takes priority.
- NFC is not mentioned in 9102.12, so devices without it fit best there—even if they have basic health tracking.
- If a device has both SIM and fitness features, use **8517.13** as the primary classification due to its communication capability