HP ENVY x360 13z vs. HP ENVY x360 15z: Which should you buy?

[Windows Central]

We test a lot of laptops here at Windows Central, ranging from premium to budget. If you have your sights set on HP's ENVY x360 line for your next laptop and are unsure what to pick, we can help.
[h=2]HP ENVY x360 13z Touch[/h]Everyday power

$590+ at HP

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