84 PCWorld AUGUST 2019REVIEWS DELL LATITUDE 7400 2-IN-1
by 7.87 inches deep by up to 0.59 inches
thick. We didn’t try it on an airplane tray table,
but it should fit just fine. That additional
thickness also lends Dell’s Latitude 7400 2-in-1
absolute stability, with no detectable flex
whatsoever.
Dell put equal care into the Latitude’s aural
ergonomics, too. Dell ships its Power
Manager utility inside the Latitude 7400, with
options for the default Optimized setting,
plus “Cool,” “Quiet,” and “Ultra
Performance.” I found the default Optimized
setting rarely turned on the system fan even
while running benchmarks. Enabling
Performance Mode increases the clock speed
and runs the fan more frequently, yet fan noise
was exceptionally quiet and unobtrusive to
the point that I had to cock an ear to even
detect it in the IDG offices. In the quiet of a
home office the dearth of fan noise allowed
me to hear a slight, intermittent staticky buzzA well-vented laptop usually means a quiet laptop with little, if any, thermal throttling. The Latitude 7400
2-in-1 runs quietly, even without the fans manually throttled down, as part of its “Quiet” mode.that louder PCs would have drowned out.DELL’S EXPRESSSIGN-IN: A
CONVENIENT GIMMICK
Dell touts the Latitude 7400 2-in-1 as “the only
PC that senses your presence,” with a
technology the company calls ExpressSign-in.
If configured with Windows Hello,
ExpressSign-in will lock your PC automatically
when you walk away. But it will also detect
you when you approach, then use Windows
Hello to log you in.
The technology uses a sensor package to
determine when there’s no one nearby, then
automatically locks your PC. Windows already
does something somewhat similar (if enabled
via Windows settings): If you pair a phone via
Bluetooth, Windows can lock you out
automatically once your phone goes out of
range. However, Bluetooth’s range can be
long enough that Dynamic Lock doesn’t