The iPhone 6S and 6S Plus remain available, however, and Apple has increased the storage capacity of the entry-level models to 32GB and lowered their prices to $549 and $649, respectively. . The iPhone 6 is an exceptional phone in nearly every way but for its middling battery life Apple iPhone 6S ( Latest Model) - 64GB - Space Gray ( Factory Unlocked) Smartphone. . New Apple iPhone 6s/Plus 16/64/128GB Space Gray Black Rose Gold Silver Unlocked. . Apple iPhone 6 - 16GB - ( AT& T) Smartphone - Gold - Space Gray - Silver.