Dell's new XPS 14 dominates MacBook Air with 43 hours of battery life in web browsing test

Key summary
Hardware Canucks found the Dell XPS 14 lasted over 43 hours on a single charge while web browsing with VRR enabled and a 1Hz battery‑saver mode.
The 1Hz Panther Lake mode reduces the screen refresh to once per second and is described as useful for static workloads.
The tested XPS 14 uses an Intel Core Ultra 7 355 (25W base TDP, 55W Max Turbo); Panther Lake appears more power‑efficient than Lunar Lake and Arrow Lake.
In 4K YouTube playback the XPS 14 ran 20 hours 21 minutes; under the same conditions a 15-inch MacBook Air with M5 ran 14 hours 2 minutes.
In gaming the XPS 14 lasted about 2 hours 30 minutes while the MacBook Air ran over four hours; NotebookCheck reported different Wi‑Fi browsing figures under other test settings with a Core Ultra X7 358H (25W base, 80W Max Turbo).



