Most iSmartgate openers are similar in terms of USB type, universal power supply, and receiver. However, there are some differences you should know about.

• The iSmartgate MINI is the most affordable option. This model works with Google Home, IFTTT and Amazon Alexa. It is also compatible with both wired and wireless door sensors, but It does not have any lights or speakers, and It is not compatible with Apple Homekit or Samsung SmartThings.
• The iSmartgate LITE is more advanced than the MINI. This model works with all Smart Home platforms. However, it does not have a speaker or light, and it is not compatible with wired door sensors.
• The iSmartgate PRO is the most advanced of the three options. It is compatible with all Smart Home platforms. Also, it has a speaker and double LED light. This model can control up to three doors and it is compatible with both wired and wireless door sensors.

Here is the comparison between the 3 iSmartgate models: https://ismartgate.com/compare-ismartgate-smart-garage-openers/