Home theater recliners differ from regular recliners in terms of functionality, softness, comfort, and configuration. They are also obiviously used for different purpose and places. Both are sofa seating which can be reclined and adjusted to a different position, allows your backrest lying down and your feet lifting up. They have many in common, but also many differences.

Home theater recliners has more funcitions than regular recliners
Home theater recliners has more functions and features like power reclining adjustable seat and headrest, cup holders, tray tables, wine glass holder, LED foot rest lighting and lumbar support etc..
Some can even be connected with the smart home system or smart audio system, becoming a piece of smart home furniture, more convenient and adding more value to the home.
These functions can be customized according to specific needs. So most of this kind of chairs are fully power recliners.
Regualr recliners looks simpler and easier. They usually comes manual recline or partially power recline, instead of all sofa seats reclined.
Some regualr recliners has swivel functions, adding more relaxing and fun when taking a rest. When it comes in a sofa set, generally only the side seats have reclining functions.
Softness & Comforts is different
When it comes comforts, regular recliners is softer and comfortable for first impression and short resting on it. If you are not experienced, you may say the softer one is better. Because it looks like fatter and and feels softer, you feel more embraced just like by mom and you sink more into it.
While for watching movies which last for 1.5 – 2 hours, you need better supportive seating, too soft seats will make you very uncomfortable and distracted from the movies. So it should be not so soft but need very good high density and supportive foam to offer more comforts. Also more supportive seats are more durable.
Configurations/Layout differs from each other
Cinema recliners comes in one row of a few seats like 2, 3, 4 or 5 or even more on requests, either in straight row or curved row. They usually share middle arms in between. For people who have enough space, they can also choose individual seats with 2 arms. The configuration can be easily customized according to specific needs.
For example, LS-881RG home theater recliners below, they can be 2, 3 or 4 seats in a row. They can also be 5, 6 or more seats in a row on request.
While regular recliners usually comes in a single seat tipically like La-Z-Boy recliners or sectional sofa style like the standard living room sofas. It usually comes in a individual seat or sectional sofa set which usually does not have middle arms in between when comes in a set of 3 or 4 seater.
Applications of home theater recliners and regular recliners is different
Home theater recliner is one type of the varation of recliners. It is designed and built for home theater or cinema rooms, gaming rooms or other entertainment centers. They feels and looks more like a kind of cinema seating, offering more cinematic ambiance.
People usually select 1 or 2 seats as arm chair in the living room to match the living room sofa. Or if people make recliner sofa set in the living room. As regular recliner chairs is very soft and comfotable, they can also be used in some beauty salons.