Samsung’s latest smartphone, the Galaxy S5, is now available around the world. The Korean company’s flagship smartphone launched in 125 markets, including the United States, Europe, and much of Asia. It’s joined on shelves by the Samsung Gear 2 and Samsung Gear 2 Neo smartwatches, and the Samsung Gear Fit health tracker, which also launch today.The reasons for moving up to a Galaxy S5 are fairly straightforward: it features the fastest processor on the market, offers a number of built-in fitness features, and is immune to the water-related incidents that would spell doom for most phones. If the company’s recent phones are anything to go by, you can also expect solid camera performance. But there are also valid arguments for holding off: Samsung’s software customizations haven’t been toned down much, and that new fingerprint sensor is getting less than stellar marks all around.The Galaxy S5 features the fastest smartphone processor on the marketIn the US, the Galaxy S5 can be found on every major US carrier – Verizon Wireless, AT&T, Sprint, and T-Mobile – for a going rate price of $199.99 on-contract.