This update to the Alcatel Go Flip 3 has a much larger battery, new shortcut buttons, and a modern USB-C connector. Other features of this KaiOS phone are similar, including Google Assistant voice ...

The Z Flip 4 could also have been an opportunity to make phone actually flip open with one ... that Samsung made it water resistant but didn't go further to make it even more rugged.

The latest iteration of flip phones with foldable screens has come a long way four years, improving in design, durability and features while dropping in price – the new Razr starts at just $700.