Activity gyms are typically suitable from birth, with babies engaging more actively with hanging toys and mirrors from around 6-8 weeks as their vision and reach develop.

Baby bouncers are designed for supervised, short periods of use rather than extended sitting, and most brands recommend limiting time in a bouncer to allow plenty of floor-based tummy time for development.

A bouncer is a stationary seat with gentle rocking or bouncing motion for younger babies, while an activity walker is designed for babies who are pulling up and cruising, supporting early mobility as they build leg strength.