TP-Link Tapo
TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter)
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Released 2025
Best Smart Light Switches · head-to-head
TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN)
A sourced, side-by-side comparison. Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) is cheaper at $55. Every spec and price links to its source.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) |  Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) |
|---|---|---|
| US price | — | $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 |
| Release year | 2025 | — |
Sources — TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter): tp-link.com (verified 2026-06-20). Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN): inovelli.com (verified 2026-06-20).
What's the difference between the TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) and Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN)?
Where the two actually differ on the specs we track (6 of 7). Matching specs are omitted.
- 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) false vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) true
- Neutral wire required: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) true vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) false
- Three way capable: TP-Link Tapo S505D Smart Wi-Fi Dimmer Switch (Matter) false vs Inovelli Blue Series 2-1 Smart Switch/Dimmer (VZM31-SN) true
- 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