Motorola is opening 2015 with an additional storage option for soon-to-be Moto X Pure Edition users. The revamped version of the 2013 smartphone is getting a 64 GB variant on top of its on-hand 16 GB and 32 GB options. Now that its memory size is on par with its kindred device, the Nexus 6, what edge does each Motorola handset have over the other? 

Released by Motorola in the same month last year, the world saw Nexus 6 and the Moto X almost identical looking — similar rounded framework, thin metal bezel and smooth plastic crust. The huge difference lies in their dimensions and this may also be most buyers' deciding factor. The Nexus 6 is undeniably bigger than the Moto X with its extra-large 5.9-inch AMOLED display. That breeds a resolution of up to 1440 x 2560 with an impressive 493 ppi pixel density. The Moto X comes with a 5.2-inch Full HD screen with a 424 ppi pixel density. Phablets like the Nexus 6 may be cumbersome and heavy for others, making the Moto X the easy choice. Conversely, larger display may appeal to some. Regardless, their graphics are spot on. 

Under the hood, the distinctions become even more evident. To accommodate its hefty mass, the Nexus 6 has an appropriate and more powerful processor chipped in, a quad-core Qualcomm Snapdragon 805 clocked at 2.7 GHz. Tucked with it is a much-needed 3220 mAh battery to power up its mega-sized display. The Nexus heavyweight has a 32 GB and 64 GB storage capacity partnered with a lavish 3 GB RAM.

The Moto X drops back in the cut and thrust with this one. Although Motorola has ramped up its storage space to 64 GB, the Moto X still stuck with its inbuilt 2 GB RAM. This though, is enough to support its 2.5 GHz quad-core Qualcomm Snapdragon 801. Its battery, advertised to last 24 hours, has a 2300 mAh capacity. It is expected to outperform its rival as the Nexus 6's large display is likely gobble up most of its juice. 

Both phones have the same camera registers — a rear camera with 13 megapixels and a front shooter with 2 megapixels. These allow HD recording. However, the Nexus 6 steps it up a bit more with the addition of dual-recording, which allows users to use the snappers, and optical image stabilization. 

The 64 GB variant of the Moto X is at $600 and is available in the Motorola website now. The Nexus 6 is about $650.