With the launch of the iPhone 7, the earpiece (receiver) doubles as a speaker giving you stereo sound. Presumably, the new speaker in the iPhone 8 will be louder and could be sufficiently waterproof to meet the IP68 water resistance rating rumored for the new smartphone.
JPMorgan also claims that the iPhone 8 could come with AirPods instead of EarPods; however, that's quite unlikely considering there is still a 6 month shipping estimate on the wireless earphones five months after their release. (Or pay a premium on Amazon)
Notably, a separate JPMorgan analyst (Rod Hall, USA), claims that Apple could preview the iPhone 8 at WWDC in June. That also seems very unlikely; however, Apple could be looking to get ahead of leaks and prepare developers for a new OS and display size.
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