# TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN): specs and price compared

A sourced, side-by-side comparison of the TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) (TP-Link Tapo) and Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) (Inovelli) among smart light switches.

## Side by side

| Spec | TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) | Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) |
| --- | --- | --- |
| US price | not published | $55 |
| Brand | TP-Link Tapo | Inovelli |
| Released | 2025 | — |
| Type | dimmer | switch/dimmer (configurable) |
| Protocol | wi-fi 2.4 GHz + matter | zigbee 3.0 |
| Hub required | No | Yes |
| Neutral wire required | Yes | No |
| Three way capable | No | Yes |
| Works with | alexa, apple_home, google_home, smartthings, matter | alexa (via echo hub), home_assistant, smartthings, hubitat |
| Single pole | Yes | Yes |

## Key differences

- Type: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) dimmer vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) switch/dimmer (configurable)
- Protocol: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) wi-fi 2.4 GHz + matter vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) zigbee 3.0
- Hub required: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) No vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) Yes
- Neutral wire required: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) Yes vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) No
- Three way capable: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) No vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) Yes
- Works with: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) alexa, apple_home, google_home, smartthings, matter vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) alexa (via echo hub), home_assistant, smartthings, hubitat

## Sources

- TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter): https://www.tp-link.com/us/home-networking/smart-switch/tapo-s505d/ (tp-link.com, verified 2026-06-20)
- Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN): https://inovelli.com/products/zigbee-matter-blue-series-smart-2-1-on-off-dimmer-switch (inovelli.com, verified 2026-06-20)

Canonical: https://frontdeskreview.com/gear/smart-light-switches/tp-link-tapo-s505d-vs-inovelli-blue-series-2-1-vzm31-sn/
Cite: Per The Front Desk Review, TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) (not published) vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) ($55) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-light-switches/tp-link-tapo-s505d-vs-inovelli-blue-series-2-1-vzm31-sn/
License: CC BY 4.0.