The Lobster Elite 3, SAM Model P4, Tennis Tower and Wilson Ball Machine are all highly rated, affordable tennis ball machines. The Lobster Elite 3 and Wilson Ball Machine are battery operated, while the Tennis Tower runs on 100 Watts AC. The SAM Model P4 runs on battery or AC.
The Lobster Elite 3, SAM Model P4, Tennis Tower and Wilson Ball Machine all have random, vertical, horizontal and two-line oscillation capabilities. The SAM Model P4 holds 300 balls, the Tennis Tower holds 225, the Lobster Elite 3 holds 150 and the Wilson Ball Machine holds 110.
As of 2016, all four tennis ball machines cost under $2,000.