New Delhi, Oct. 13 -- how much battery and camera capability should they trade for a thinner, lighter phone? A hands-on comparison by Android Authority's Harish Jonnalagadda favors Vivo in everyday use, but the manufacturers' specifications reveal a more specific contest than a simple winner-and-loser verdict.

The global X Fold6 has a typical battery capacity equivalent to 6,900mAh, according to Vivo's official product listing. Samsung lists 5,000mAh for the Galaxy Z Fold8 Ultra. That gives Vivo a 1,900mAh capacity advantage, or 38%, without establishing that it will run 38% longer. Actual endurance depends on the screens, applications, connectivity and workload.

In his Android Authority comparison, Jonnalagadda reports routinely gettin...