When can sit on inflatable chair

3 months almost 4 as baby's neck was strong enough and she seems to always want to sit up. however i wouldn't let her sit for long as she still couldn't hold up her upper torso.

At about 4 months old, but she didn’t know how to enjoy it back then. Now she’s 8 months old, she loves it.

tried at 4 months. cried then haven't tried again. maybe u try and see. if not ready then can't force

When the neck is strong and baby is starting to sit with little support and doesnt faceplant alot