The Smart Device Compare comparison

Heiman Matter Smoke Detector S1-TM vs Kidde Smart Smoke & CO Detector with Ring

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Heiman Matter Smoke Detector S1-TM and Kidde Smart Smoke & CO Detector with Ring

A summary of selected recorded differences between these smoke & co detectors. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Co Alerts (alerts): Heiman Matter Smoke Detector S1-TM — No; Kidde Smart Smoke & CO Detector with Ring — Yes.
2.4 GHz Wi-Fi (connectivity): Heiman Matter Smoke Detector S1-TM — No; Kidde Smart Smoke & CO Detector with Ring — Yes.
Other (connectivity): Heiman Matter Smoke Detector S1-TM — No; Kidde Smart Smoke & CO Detector with Ring — Yes (Wire-free interconnect so all Kidde alarms in the home sound together).
Alexa (integrations): Heiman Matter Smoke Detector S1-TM — Yes (Via Matter); Kidde Smart Smoke & CO Detector with Ring — No (Alexa's smart home API has no smoke or CO alarm type: the only supported route is the Matter Smoke CO Alarm device type, which this alarm does not speak).

Specifications to check side by side

Thread (connectivity): Heiman Matter Smoke Detector S1-TM — Thread Border Router required; Kidde Smart Smoke & CO Detector with Ring — No.
Battery Type (power): Heiman Matter Smoke Detector S1-TM — CR123A; Kidde Smart Smoke & CO Detector with Ring — 2x AA (2 AA alkaline batteries included).

Information still to confirm

5 of 37 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Heiman

Heiman Matter Smoke Detector S1-TM

Last updated October 2026

View full device profile

Option 2 · Kidde

Kidde Smart Smoke & CO Detector with Ring

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

13differences with recorded values for every device

5rows with missing or unspecified information

Consider your setup

Apple Home

Heiman Matter Smoke Detector S1-TMYes
Kidde Smart Smoke & CO Detector with RingNo

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

Consider your setup

Matter

Heiman Matter Smoke Detector S1-TMYes
Kidde Smart Smoke & CO Detector with RingNo

Confirm the exact device type and the features exposed in your chosen platform. Protocol support does not establish feature parity across apps.

Inspect the specifications

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 37 of 37 rows. “Not recorded” does not mean “No”.

Reading layout

Alerts

Air Quality Alerts

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Co Alerts

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: Yes

Fire Alerts

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Local 85 dB alarm plus notifications through the Matter controller app
Kidde Smart Smoke & CO Detector with Ring: Yes

Low Battery Alerts

Heiman Matter Smoke Detector S1-TM: Yes
Kidde Smart Smoke & CO Detector with Ring: Yes
Catalog note
Delivered to the Ring app, so no midnight chirping

Temperature Alerts

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Connectivity

2.4 GHz Wi-Fi

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: Yes

5 GHz Wi-Fi

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Bluetooth

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Other

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: Yes
Catalog note
Wire-free interconnect so all Kidde alarms in the home sound together

Thread

Heiman Matter Smoke Detector S1-TM: Thread Border Router required
Kidde Smart Smoke & CO Detector with Ring: No

Z Wave

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Zigbee

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Display

Screen

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Screen Type

Heiman Matter Smoke Detector S1-TM: Not applicable / unspecified
Kidde Smart Smoke & CO Detector with Ring: Not applicable / unspecified

Features

Automations

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Local Matter automations, no cloud required
Kidde Smart Smoke & CO Detector with Ring: Not recorded

Built In Light

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: Not recorded

Built In Siren

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
85 dB at 10 ft
Kidde Smart Smoke & CO Detector with Ring: Yes

Pathlight

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Steam Check

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Dual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms
Kidde Smart Smoke & CO Detector with Ring: Yes
Catalog note
Enhanced sensing reduces cooking nuisance alarms versus earlier Kidde generations

Tests Itself

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Push to test button, and the test can be triggered remotely from Home Assistant
Kidde Smart Smoke & CO Detector with Ring: Not recorded

Integrations

Alexa

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke & CO Detector with Ring: No
Catalog note
Alexa's smart home API has no smoke or CO alarm type: the only supported route is the Matter Smoke CO Alarm device type, which this alarm does not speak

Apple Home

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke & CO Detector with Ring: No

Google Home

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke & CO Detector with Ring: No

Home Assistant

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke & CO Detector with Ring: Yes
Catalog note
Community HACS integration for the hubless Wi-Fi Kidde and Ring smart smoke and CO detectors

Matter

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Matter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting
Kidde Smart Smoke & CO Detector with Ring: No

SmartThings

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Via Matter
Kidde Smart Smoke & CO Detector with Ring: No

Power

Battery Life

Heiman Matter Smoke Detector S1-TM: 3.5 years
Kidde Smart Smoke & CO Detector with Ring: Not recorded

Battery Type

Heiman Matter Smoke Detector S1-TM: CR123A
Kidde Smart Smoke & CO Detector with Ring: 2x AA
Catalog note
2 AA alkaline batteries included

Wired

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Sensors

Air Quality

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Ambient Light

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: Yes
Catalog note
Electrochemical, with low-level CO mobile alerts

Humidity

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Built-in humidity sensor reported over Matter
Kidde Smart Smoke & CO Detector with Ring: No

Motion

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Occupancy

Heiman Matter Smoke Detector S1-TM: No
Kidde Smart Smoke & CO Detector with Ring: No

Smoke

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Dual-beam photoelectric sensor, UL 217 10th Edition certified
Kidde Smart Smoke & CO Detector with Ring: Yes
Catalog note
Photoelectric, over 25% faster than a leading competitor in Kidde testing

Temperature

Heiman Matter Smoke Detector S1-TM: Yes
Catalog note
Built-in temperature sensor reported over Matter
Kidde Smart Smoke & CO Detector with Ring: No

Specifications for Heiman Matter Smoke Detector S1-TM versus Kidde Smart Smoke & CO Detector with Ring
Specification	Heiman Matter Smoke Detector S1-TM	Kidde Smart Smoke & CO Detector with Ring
Alerts
Air Quality Alerts	No	No
Co Alerts	No	Yes
Fire Alerts	Yes Catalog note Local 85 dB alarm plus notifications through the Matter controller app	Yes
Low Battery Alerts	Yes	Yes Catalog note Delivered to the Ring app, so no midnight chirping
Temperature Alerts	No	No
Connectivity
2.4 GHz Wi-Fi	No	Yes
5 GHz Wi-Fi	No	No
Bluetooth	No	No
Other	No	Yes Catalog note Wire-free interconnect so all Kidde alarms in the home sound together
Thread	Thread Border Router required	No
Z Wave	No	No
Zigbee	No	No
Display
Screen	No	No
Screen Type	Not applicable / unspecified	Not applicable / unspecified
Features
Automations	Yes Catalog note Local Matter automations, no cloud required	Not recorded
Built In Light	No	Not recorded
Built In Siren	Yes Catalog note 85 dB at 10 ft	Yes
Pathlight	No	No
Steam Check	Yes Catalog note Dual-beam sensing tells smoke apart from steam and cooking fumes to cut false alarms	Yes Catalog note Enhanced sensing reduces cooking nuisance alarms versus earlier Kidde generations
Tests Itself	Yes Catalog note Push to test button, and the test can be triggered remotely from Home Assistant	Not recorded
Integrations
Alexa	Yes Catalog note Via Matter	No Catalog note Alexa's smart home API has no smoke or CO alarm type: the only supported route is the Matter Smoke CO Alarm device type, which this alarm does not speak
Apple Home	Yes Catalog note Via Matter	No
Google Home	Yes Catalog note Via Matter	No
Home Assistant	Yes Catalog note Via Matter	Yes Catalog note Community HACS integration for the hubless Wi-Fi Kidde and Ring smart smoke and CO detectors
Matter	Yes Catalog note Matter 1.4 over Thread; Heiman holds CSA Matter certificates for its smoke sensors with temperature and humidity reporting	No
SmartThings	Yes Catalog note Via Matter	No
Power
Battery Life	3.5 years	Not recorded
Battery Type	CR123A	2x AA Catalog note 2 AA alkaline batteries included
Wired	No	No
Sensors
Air Quality	No	No
Ambient Light	No	No
Co	No	Yes Catalog note Electrochemical, with low-level CO mobile alerts
Humidity	Yes Catalog note Built-in humidity sensor reported over Matter	No
Motion	No	No
Occupancy	No	No
Smoke	Yes Catalog note Dual-beam photoelectric sensor, UL 217 10th Edition certified	Yes Catalog note Photoelectric, over 25% faster than a leading competitor in Kidde testing
Temperature	Yes Catalog note Built-in temperature sensor reported over Matter	No

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology