Samsung Galaxy J5 or Lenovo a7000?

Which one should i get?
First of all, the price difference doesn't matter.
The differences that i think are the most important are:
j5 - 1.5GB RAM, a7000 - 2GB RAM
j5 - SAR 0.4 W/kg, a7000 - SAR 0.668 W/kg

I haven't searched a lot of stuff about the Galaxy j5, because i was planning to get the Lenovo a7000. But, today i read some posts about the a7000. They said that it has high SAR rate, it has awful sound (they said that the sound sucks even with earpieces, but i'm assuming they mean the ones that come along the phone), it lasts only 3-5 hours with light use etc.
So, i don't know what to do. I went to a store and they recommended the Galaxy j5 (without mentioning any issues with the a7000, but saying that it's a good phone too).

Your opinions are appreciated. Thanks

Oh, almost forgot. I mentioned the RAM difference. Do you think that j5's 1.5GB RAM is enough for gaming, video playing, and light multitasking?

Samsung Galaxy J5