The 24.2-megapixel APS sensor of the Sony a6400 captures “oversampled” 6K data and then downsamples it to 3,840 x 2,160 producing superb quality 4K video. A flip-up LCD screen cements its current position as the best video camera for vloggers. Highly recommended.
Website: Sony a6400
Review 1: Digital Photograpy Review
Review 2: YouTube