I've just bought one of the new iPhone SE models specifically because it still has a 3.5mm jack as well as 20% better battery life than the large iPhone 6 model

I've just bought one of the new iPhone SE models specifically because it still has a 3.5mm jack as well as 20% better battery life than the large iPhone 6 models it shares its internals with. Ever larger and thinner simply does not make sense. The whole point of a mobile phone is that they are robust, portable and practicable and both the above trends are acting against those purposes.