<p>Sea waves are a huge source of untapped energy and ocean waves can give up to 2000 GW of power globally. Among several wave energy harvesting technologies, a point absorber (PA) is a versatile one. It can be placed typically at more than 40&#xa0;m water depth to mid sea. A PA seems to be a viable technology for a small system requiring low power in the sea as it has a smaller dimension less than one-twentieth of the wavelength. In general, it contains a floating buoy and a spar with a damper. The article reviews the various power takeoff (PTO) technologies for PAs. There are numerous PTO mechanisms such as direct mechanical drive systems, hydraulic systems, air turbines, and linear electrical generators. An overview of such types of power take-off mechanisms is presented, and it is found that the high-pressure oil hydraulic system is appropriate to transform waves into electrical power and is well suited to larger power waves, and electrical linear generators are highly adapted for low-scale wave energy converters and have been used in several devices tested in the sea.</p>