First Alert Onelink Safe & Sound (US) vs First Alert SC5 Battery (US)
Smoke and CO alarms · For the US and Canada
- The First Alert Onelink Safe & Sound (US) works with Apple Home; for the First Alert SC5 Battery (US) it isn't confirmed.
- The First Alert SC5 Battery (US) works with Google Home; for the First Alert Onelink Safe & Sound (US) it isn't confirmed.
- Neither is confirmed to work with Amazon Alexa, SmartThings and Home Assistant.
- They also differ on: radio, hub required and power.
Side by side
| Fact | First Alert Onelink Safe & Sound (US) | First Alert SC5 Battery (US) |
|---|---|---|
| Matter | Unconfirmed | Unconfirmed |
| Apple Home | Yes[1],[2] | Unconfirmed |
| Google Home | Unconfirmed | Yes[1],[2] |
| Amazon Alexa | Unconfirmed | Unconfirmed |
| SmartThings | Unconfirmed | Unconfirmed |
| Home Assistant | Unconfirmed | Unconfirmed |
| Radio | Wi-Fi, Bluetooth[1],[3] | Wi-Fi[1] |
| Hub required | No[1] | Unconfirmed[1] |
| Local control | Unconfirmed | Unconfirmed |
| Detects | Smoke, Carbon monoxide (CO)[1] | Smoke, Carbon monoxide (CO)[1] |
| Power | Hardwired 120 V, 10-year sealed battery[1] | 6 × CR123A lithium[1],[2] |
| Alarms link wirelessly | Yes[1] | Yes[1],[2] |
A bar on the left marks the rows where they differ. Numbers in brackets lead to the source on each device's own page, which also has the notes and what to check before you buy. Checked against official sources; the older of the two records was verified on . How we verify.
Quick answers
- First Alert Onelink Safe & Sound (US) or First Alert SC5 Battery (US): which works with Apple Home?
- Confirmed only for the First Alert Onelink Safe & Sound (US). The First Alert Onelink Safe & Sound (US) works directly; the First Alert SC5 Battery (US) isn't confirmed either way. More smoke and CO alarms for Apple Home
- First Alert Onelink Safe & Sound (US) or First Alert SC5 Battery (US): which works with Google Home?
- Confirmed only for the First Alert SC5 Battery (US). The First Alert Onelink Safe & Sound (US) isn't confirmed either way; the First Alert SC5 Battery (US) works directly. More smoke and CO alarms for Google Home
- First Alert Onelink Safe & Sound (US) or First Alert SC5 Battery (US): which works with Amazon Alexa?
- Not confirmed for either: we couldn't find an official source either way.
- First Alert Onelink Safe & Sound (US) or First Alert SC5 Battery (US): which works with SmartThings?
- Not confirmed for either: we couldn't find an official source either way.
- First Alert Onelink Safe & Sound (US) or First Alert SC5 Battery (US): which works with Home Assistant?
- Not confirmed for either: we couldn't find an official source either way.
Full details and sources: First Alert Onelink Safe & Sound (US) · First Alert SC5 Battery (US)