Range performance is often the deciding factor for B2B buyers, especially when targeting specific application categories. Let's examine real-world range performance based on industry testing and user reports.
RF 433MHz delivers exceptional range performance due to its lower frequency and longer wavelength (approximately 0.69 meters at 433MHz). Industry testing shows:
- Open area: 100-300+ meters
- Indoor with walls: 30-100 meters (excellent wall penetration)
- Multi-floor: Can penetrate multiple floors effectively [5]
This makes RF 433MHz the protocol of choice for garage door openers, gate controllers, ceiling fan remotes, and outdoor applications where distance and obstacle penetration matter most.
WiFi range is constrained by its higher frequency and network infrastructure requirements:
- Open area: 75-100 meters (router dependent)
- Indoor: 30-50 meters typical
- Wall penetration: Moderate (2.4GHz better than 5GHz)
- Limitation: Requires active WiFi network coverage [6]
As one Reddit user noted in a discussion about RC plane control: "Wifi really isn't well suited to radio control stuff. It's a high-throughput short range system in a role where range is king and data rates are low" [6]. This captures the fundamental mismatch between WiFi's design priorities and long-range control applications.
Bluetooth/BLE range varies significantly between classic Bluetooth and Bluetooth Low Energy:
- Classic Bluetooth: 10-30 meters indoor
- BLE: Similar range, but some long-range BLE variants reach 100+ meters
- Wall penetration: Moderate
- Critical limitation: Direct pairing required; remote access needs gateway [2]
For applications requiring smartphone control within a single room or apartment, Bluetooth works well. For whole-home or outdoor control, the range limitation becomes a significant constraint.