The Sony - WF-1000XM4 is one of the best wireless earbuds that have the best build quality and the best noise cancellation capability, they have a high-end call quality, they are light and fits well in the ear, they have an eight hours onboard battery life, support wireless charging and offers a v5.2 Bluetooth connectivity. Just a single con, it is a bit expensive but with the noise cancellation feature, it’s a good investment and offers the best value for money. As compared to its predecessor (Sony - WF-1000XM3) the Sony - WF-1000XM4 offers more quality life, better sound quality, excellent comfort and build quality. Its worth upgrading.