Battery power is OK.The BLU Improve 4.0 really relies on what you're doing with the cellphone and how many applications are operating in the qualifications. I've not had it die on me yet, but I do ensure to cost it in the evening and I have an assortment charger in my car just in situation. Also, if you're interested, battery alternatives are available. Go to BLU's Amazon Shop Front side and check their Equipment web page to find it.
I got a display guard, safety nasty situation, and a headphones with this BLU Improve 4.0 (along with the conventional battery charger and manual). I tried to use the display guard but I did not fresh the cellphone well enough and finished up damaging it. Oh well. The cellphone itself has a slick nasty feel to it, so the nasty situation is useful as it gives the cellphone "grip". I have not examined the headphones but they seem resilient and of high quality.
Discussing of the outside of the BLU Improve 4.0... it's charming looking. Someone described it seemed inexpensive in the opinions. I think that relies on where you're arriving from. Having used a Z990 for the last 4 years, the Enhance 4 is essentially a work of art by evaluation. The back is particularly awesome looking. (I wish the nasty situation was the same shade as the cellphone, or see-through, because it's a pity to have it all protected up.)
At $82 the BLU Improve 4.0 is an ideal cellphone. There are no "deal breaking" problems for me. All the minimal problems I can either get around or stay with. If this cellphone also shows to be resilient (I have not had it long), I'll be a BLU client for lifestyle.