You guys know that there is a lightning to 3.5mm adapter in the box for each iPhone 7, right. For me it doesn't matter much, since there are amazing products like the Hifi-Skÿn from CEntrance my trusty RSA The Predator, JDS Labs C5D, ifi iDSD nano and micro, Oppo HA-2, AK 200p and others on the market for years now that connect to the lightning port, use their own DAC/amp and have a beautiful "historic" 3.5mm socket. And they all sound to my ears a tad better than the iPhone direct.
Anyhow, if you are not invested in the Apple ecosystem, it might be worthwhile looking at the LG V20. I have the predecessor V10 and it's as good as it gets (for a phone) in regards to sound quality with a ESS Sabre 9018 DAC and Sabre amp. And of course a headphone jack. It also takes a micro-ad card for your music
However - Noble's own BTS works just fine with any iPhone and Android device.
Cheers.
A shame it seems the V20 won't be coming to the UK... was very tempted by it.