Overview
- Comcast announced Xfinity Shield’s new WiFi Motion on Tuesday, August 18, enabling compatible XB7‑or‑newer routers to send movement alerts without cameras.
- The system works by measuring changes in Wi‑Fi signals between the router and at least one other fixed connected device such as a smart speaker or thermostat.
- Users must opt in and can adjust sensitivity or pick preset modes labeled home, away, or night through the Xfinity app.
- Comcast says it does not actively monitor motion alerts but warns in its FAQ that information could be disclosed to third parties if legally required by investigations or court orders.
- Effectiveness varies with signal strength, device placement, building layout and materials so Comcast warns WiFi Motion is not a replacement for professional security; the move follows earlier trials of similar tech such as Deutsche Telekom’s spring 2026 tests.