Yonhap and ChosunBiz quote Samsung internal tests: about 13,000 in Geekbench 6.5 multi-core versus about 11,000 for Qualcomm’s chip in the Xiaomi 18 Pro Max, plus 15% in Geekbench 7 and 20% in graphics. The numbers are not independent, and there is no thermal or power data.
Safety Korea has published photos of batteries EB-BS958DBY (S27 Ultra) and EB-BS957CBY (S27 Pro), made by China’s CosMX. Rated capacities from the Chinese 3C filing: 5,534mAh for the Ultra and 5,087mAh for the Pro, roughly 5,700 and 5,200 typical, a jump from 5,000mAh in the S26 Ultra, but charging stays at 60W.
Korean leaker Lanzuk says the Galaxy S27 series is on schedule for January 2027, "February at the latest", after the S26 slipped to early March this year. The big decisions are made for the S27 and S27+, but Samsung has not settled whether the Pro and Ultra move to LPDDR6 and UFS 5, because the memory market "heated up more than expected" and that would raise cost and price. The Ultra chip is still between the Snapdragon 8 Elite Extreme Gen 6 and the Exynos 2700.
A Korean tip says the S27 Ultra goes Snapdragon-only worldwide, while the S27, S27+ and S27 Pro get the Exynos 2700 in most of Europe, Asia and Africa. A separate leak puts international prices between $999 and $1,549. None of it is confirmed.
