Primary requirements for smartphone for being in this topic

• 4K 30fps, good bitrate, preferable HEVC mode option
• 4K 60fps, good bitrate, preferable HEVC mode option
• OIS on main camera at least
• EIS, and good one, for all video modes, including 1080p60 and 4Kp60
• Sensor shift stabilization, rumored to be in new smartphones later in 2020 and early 2021
• Proper HDR implementation
• Preferably Dual Pixel AF (analog of Canon approach)

Nice things to have

• USB-C with at least USB 3.0 speed, preferably with USB 3.2 Gen 2
• MicroSD U3 card support up to 512GB, it is always better to have support for card even if 128Gb only

Chipsets to look for

• Snapdragon 845 on most phones lacks EIS in 4K60fps
• Snapdragon 855 and 855 Plus
• Snapdragon 865
• Snapdragon 865 Plus, coming
• Snapdragon 630, 632, 660, 662, 665, 670, 675 - no 4K 60fps recording, stab usually don't work in 4K at all, EIS in 1080p30 on most phones only
• Snapdragon 710, 712, 720, 730, 765 - no 4K 60fps recording, stab usually don't work in 4K at all, EIS in 1080p30 on most phones only
• HiSilicon Kirin 980 - no 4K 60fps recording
• Exynos 990 - Samsung alternative to Snapdragon 865