It's time to pitch similar devices against each other and compare their functions: Shelly 2.5 vs Sonoff DualR3
Monitor 2 gangs at once with Shelly 2.5 - NotEnoughTech
Sonoff Mini vs Shelly One - Head to Head Tiny Smart Switch Comparison
HOW TO: Shelly vs Sonoff in a 2 Way Switch Integration with Home Assistant
Support for Sonoff dualr3 · arendst Tasmota · Discussion #10793 · GitHub
Shelly1L - lite, light switch with no-neutral and L&N support
Comparando relés inteligentes Shelly 2.5 con Sonoff DualR3 - Blog Domótica Gang Gang
Shelly 2.5 vs Sonoff DualR3 - NotEnoughTech
Shelly or Sonoff - IOT (The internet of things) - Energy Talk
Support for Sonoff dualr3 · arendst Tasmota · Discussion #10793 · GitHub
Sonoff, Sonoff Dual R3 VS Shelly 2.5 - Comparazione dettagliata dei due dispositivi
Shelly 2.5 vs Sonoff DualR3 -Since I have got both - let's talk about differences! : r/homeautomation
Sonoff, Sonoff Dual R3 VS Shelly 2.5 - Comparazione dettagliata dei due dispositivi
Sonoff Mini vs Shelly One - Head to Head Tiny Smart Switch Comparison
The smallest smart relay I had in my hands! Sonoff MiniR4 Extreme
Sonoff, Sonoff Dual R3 VS Shelly 2.5 - Comparazione dettagliata dei due dispositivi