The wattage of the Portronics Bluetooth speakers means the sound output and the playtime of the device. The low-end speakers have low wattage because it has a single speaker, so it gives very low sound output. So if you want your speaker to be good with good sound quality, you should check its wattage. The size of the speaker also matters for the intensity of the sound. There are many speakers with awesome sound quality as you go up the price range, like stereo speakers or 2.1 channels with a subwoofer. So for better quality, go for larger wireless speakers with high wattage. The Portronics speaker has some quality wattage you can check out.