Apple’s upcoming 4” iPhone — which may be called the iPhone 5se — will likely have “variants” of the iPhone 6s’ A9 and M9 chips, 9to5Mac reports. The iPhone will come in 16GB/64GB capacities, and will feature always-on Siri, in addition to Apple Pay support. It’s believed the new iPhone will have curved glass and resemble a smaller iPhone 6/6s — a recent photo posted on One More Thing’s forums (and pictured…