Whatever ball you decide to purchase try to prolong the life of the ball by taking care of it. Don’t let your players stand on the ball or try to change the shape. Don’t leave them outside between practice sessions as prolonged exposure to sun or rain will damage the surface of the ball and dramatically reduce its life. Always try to keep balls clean after play by wiping them down with a damp cloth.
On the other hand, replicas (sometimes called training balls or gliders) are designed to be just like the official match balls but are much cheaper. Their panels are often stitched rather than thermally-bonded and are made of a different material. However, they’re not necessarily less durable than official match balls. So, they’re the recommended option for most players. https://www.youtube.com/watch?v=j2Xn84L3Kcs