Sony RX10 IV features a MUCH faster 315-point Phase-Detection AF system and Zeiss 24-600mm F2.4-4 lens ideal for travel, sports & wildlife photography
The Friedman Archives Blog: RX10 IV: One Amazing Incredible Camera
Sony Cyber-Shot DSC-RX10 IV Bridge Camera, 4K Ultra HD, 20.1MP
Sony Cyber-Shot DSC-RX10 IV Camera DSCRX10M4/B
Review: Sony RX10 IV / RX10M4 upgrades the ultimate travel camera
Hireacamera - Sony RX10 IV compact camera hire - rental
Sony Cyber-shot RX10 IV Review - Verdict
Product Feature, RX10 IV, Sony
DSC-RX10 IV with 0.03 s. AF/25x optical zoom
Sony RX10 IV Cyber-Shot High Zoom 20.1MP Camera with 24-600mm F
Hands-on with the Sony Cyber-shot DSC-RX10 IV: Digital Photography