I being a engineering student will suggest every businessman to use this phone with android phone.The battery of the android phone doesnt support you all the time for this you have to take a power bank with you. Which will be a additional charge.
I will advice them to purchase this mobile instead if purchasing power bank because both costs are nearly equal. It is the most cheapest mobile and is durable.In know days thus mobile is commonly seen in the hand of old people which gives you a remark that it un breakable and tough.