How long should an ultrabook battery last?

Real-world battery life for modern ultrabooks: MacBook Air M3 = 13-15 hours. LG Gram 14 = 13-16 hours. Lenovo Yoga Slim 7x (Snapdragon) = 13-15 hours. Dell XPS 13 = 9-11 hours. Windows Intel ultrabooks generally achieve 8-12 hours. Manufacturer claims are always with brightness at minimum — use 60-70% brightness as realistic baseline.

Is Snapdragon X Elite better than Intel Core Ultra?

For battery life: Snapdragon X Elite is significantly better — 30-40% longer battery. For performance: roughly equivalent in typical workloads, with Intel better at heavy single-thread tasks and gaming. For app compatibility: Intel wins since all Windows software runs natively. In 2026, x86 emulation on Snapdragon has improved dramatically and is acceptable for most users.

Best Ultrabooks 2026