first time buy

am returning to the usa and need a smart phone that is unlocked, this is a limited stay.
amazon india has iphone se 32 Gb for 18000 Rs. ( $280 ) friend purchased one and has had no problems to date.....in searching on india/us sites have found a variety of phones and prices but dont know what i am looking at .......whats needed is a basic phone with good sound, blue tooth, camera, mp3 play back ability, able to handle sim cards from other countries, would like to be able to access all networks,( dont know about g4-g3 stuff) gps would be nice but not necessary ......warranties and how to spot fakes are another issue
am an apple user for the past several years and have imac and laptop and am familiar with this side of apple.....any help is appreciated
thanks
dennis

You didn't mention where in the US you're visiting but if there is an Apple store nearby that would be the best place to buy a new unlocked iPhone. Apple still sells the SE, 6s, 7, 7+ and of course the 8, 8+ and X iPhones. You can purchase any one of them unlocked. A new SE with 32 GB is $349.00. You can also get a SE with 128GB for $449.00.

thanks for the input...... price isnt the issue, the same lack of knowledge and overwhelming choice where ever........... was hoping for some pointers as to operational characteristics, benefits / drawbacks from users
d

A lot depends on your personal use of a mobile smart phone. What do you use a mobile smart phone for other than making and receiving calls? The apps that I have on my iPhone may or may not interest you. As far as your lack of knowledge about iPhones, you can ask the sales folks at the Apple Store. They would be happy to run you thru the ins and outs of whatever phone you choose. And since you intend to take the phone out of the US back to your home in India, make sure you find out which models are compatible with the carriers in India.