Media Queries - Target iPhone 6/ 6 Plus without older iPhones

I am able to target the iPhone 6/ 6 Plus with Media Queries.

/* iPhone 6 */
@media only screen and (min-device-width: 375px) and (max-device-width: 667px) {}

/* iPhone 6 Plus */
@media only screen and (min-device-width: 414px) and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 3) {}

Problem:

It targets all other iPhones (iPhone 6 style - the landscape orientation for older iPhones exceeds 375px).

Is there any way around this or will I have to use JavaScript?

I would also like to target other phones like a Samsung Galaxy S4 (360px).

Cheers.