Help A Cell Phone Newb!?

[AC Question]

I'm looking at either the BLU Vivo IV 5.5mm, or the BLU Vivo Air LTE 5.1mm,
I just love the super thin design of them both.

What I'm not sure about are the Chipset/CPU & GPU.. I've read quite a bit about them both & I'm still not quite sure what is better!? lol

Q: Which phone is better/faster?

Specs:
BLU Vivo IV. MAY 2014. NOW $250.
Size: 5.0 inches. BETTER!
Resolution: Super AMOLED, 1080 x 1920 pixels (441 ppi). BETTER!
Chipset: Mediatek MT6592. NOT SURE?
CPU: Octa-core 1.7 GHz Cortex-A7. NOT SURE?
GPU: Mali-450MP4. NOT SURE?
Memory: 16 GB, 2 GB RAM. SAME.
Camera: 13MP/5MP. BETTER!
Battery: 2300 mAh. BETTER!

BLU Vivo Air LTE. SEP 2015. NOW $150.
Size: 4.8 inches. WORSE!
Resolution: AMOLED, 720 x 1280 pixels (306 ppi). WORSE!
Chipset: Qualcomm MSM8916 Snapdragon 410. NOT SURE?
CPU: Quad-core 1.2 GHz Cortex-A53. NOT SURE?
GPU: Adreno 306. NOT SURE?
Memory: 16 GB, 2 GB RAM. SAME.
Camera: 8MP/5MP. WORSE!
Battery: 2050 mAh. WORSE!

Use: I'll be using the phone for calls (1-2 a week), light gaming, would like good graphics/FPS, & using as a security device for two step authentication for online accounts etc.

Thanks for the help, Phil B.

 

[dpham00]

Cortex a53 should be substantially better in both performance and battery life