They've been around for nearly three years now, but there is no letting up on the novelty of a foldable phone. In particular, the unfolded tablet-esque format that the Samsung Galaxy Z Fold4 deploys. All this while, Samsung in particular has ebbed away, improving the little things that matter. Let us give you this, for illustrative purposes. The corrective Samsung Galaxy Z Fold2 from the latter half of 2020 weighed ...