Which phone would last longer?

[kenth21v]

Hi guys!

CM Cosmos X:
Dual SIM (1 Standard SIM and 1 Micro SIM)
1.2GHz quad-core MediaTek MT6589 processor
4.7-inch (1280x720) Super AMOLED HD (on-cell) display, 312ppi
PowerVR SGX544MP @286Mhz GPU
Li-Ion 1,800mAh battery

or

CM Cosmos Z:
Dual SIM / Dual Standby
1.5GHz quad-core MediaTek MT6589T processor
5-inch Full HD (1920x1080) IPS display, 441ppi
PowerVR SGX544MP @357Mhz GPU
Li-Ion 2,000mAh battery

Which would last longer? and how large would be the difference of their survival?

EDIT: BATTERY LIFE
Thanks !

 

[funkylogik]

Do you mean how future proof are they or how long a charged battery will last?

 

[Unforgiven]

I moved this to the device comparisons forum to get some better eyes on it.

 

[kenth21v]

Do you mean how future proof are they or how long a charged battery will last?

oooppss. I mean battery life

 

[Slug]

Which would last longer? and how large would be the difference of their survival?

A precise guestimate is impossible without knowing the current draw of each device, but I'll stick my neck out and suggest that the X will do slightly better due to the lower clocking of the processor & GPU and the smaller, lower-res display.