I bought on7 before 1 month from a local shop in bhopal.awesome phone.you can say its a full use of your money.i bought it on 10500rs only.i can say you can not buy or u cant find any cell in this prise segment which can perform like on7.so now here are some specification of on7.
It comes with 5.5" pixel quality 720×1280, tft touch screen.camera takes nic photos in day and ni8 no matter led flash help to take in night.front camera is 5mp and main camera is 13mpwith led flash.picture quality is awesome.you can record a full hd video from your cell in 1080 pixel.rom is 8 gb and ram 1.5 gb is good for multitasking.you can use external xard up to 128gb.its a dual sim sapported phone and you can use both sim at a same time I mean dual standby .its also a 4g sapported handset.it is running on andriod 5.1
processor is quad core 1.2 ghz. Bettry backup is also gd 3000 mah bettry gives you 8-10 hour talktime.finally I can say its one of the best budget smartphone from samsung full use of money.if you want to buy then go for it.