I bought this phone 2 months ago .
surely buying a 16 gb was not a good idea due to ios size you get less memory space for yiur own stuff . phine is definitly slow than 6s .
Reat of the features are similar to other iohone models no extra features as such. Would suggest to go for 6s , as its better and durable . though 6s is a lil over priced but totally worth it