# First Alert Onelink Safe & Sound vs Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO): specs and price compared

A sourced, side-by-side comparison of the First Alert Onelink Safe & Sound (First Alert) and Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) (Ecolink) among smart smoke detectors.

## Side by side

| Spec | First Alert Onelink Safe & Sound | Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) |
| --- | --- | --- |
| US price | not published | $39 |
| Brand | First Alert | Ecolink |
| Released | 2017 | — |
| Sensor type | photoelectric | audio_listener |
| Detects co | Yes | Yes |
| Power | hardwired | battery |
| Interconnect | wireless | wireless |
| App alerts | Yes | Yes |
| Voice location alerts | Yes | No |
| Sensor life yr | 10 | — |
| Self test | Yes | No |

## Key differences

- Sensor type: First Alert Onelink Safe & Sound photoelectric vs Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) audio_listener
- Power: First Alert Onelink Safe & Sound hardwired vs Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) battery
- Voice location alerts: First Alert Onelink Safe & Sound Yes vs Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) No
- Self test: First Alert Onelink Safe & Sound Yes vs Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) No

## Sources

- First Alert Onelink Safe & Sound: https://www.firstalertstore.com/store/products/onelink-smoke-and-carbon-monoxide-alarm-with-amazon-alexa-1039102.htm (firstalertstore.com, verified 2026-08-16)
- Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO): https://www.homecontrols.com/Ecolink-Z-Wave-Plus-FireFighter-Smoke-CO-Audio-Sensor-Gen5-ECFFZWAVE5ECO (homecontrols.com, verified 2026-08-16)

Canonical: https://frontdeskreview.com/gear/smart-smoke-detectors/first-alert-onelink-safe-and-sound-vs-ecolink-zwave-firefighter/
Cite: Per The Front Desk Review, First Alert Onelink Safe & Sound (not published) vs Ecolink Z-Wave Plus FireFighter (FF-ZWAVE5-ECO) ($39) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-smoke-detectors/first-alert-onelink-safe-and-sound-vs-ecolink-zwave-firefighter/
License: CC BY 4.0.