Sources describe design and software changes plus an approximately 4% smaller die. The modem is expected to accompany Exynos 2700.

Samsung M2700 modem reportedly improves efficiency on 4nm

Photo source: Samsung — Illustration: previous Exynos Modem 5410.

These are industry reports, not independent Galaxy S27 battery tests. The illustration shows the previous Exynos Modem 5410, not M2700.