Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| NFC | RFID | Bluetooth | Wi-Fi | |
|---|---|---|---|---|
| Network type | Point-to-point | Point-to-point | Wireless Personal Area Network (WPAN) | Wireless Local Area Network (WLAN) |
| Set-up time | <0.1 s | <0.1 s | <6 s | <6 s |
| Frequency | 13.56 MHz | LF/HF/UHF/Microwave | 2.4–2.5 GHz | 2.4–2.5 GHz, 5 GHz |
| Distance | <0.1 m | ∼100 m | ∼10 m | ∼100 m |
| Continuous sampling | No | No | Yes | Yes |
| Power consumption | Low | Varies with frequency | Medium | High |
