The DJI Osmo Action 4 brings a number of upgrades, including a larger sensor for recording in lower light conditions, improved stabilization and frost resistance.
DJI Osmo Action 4 Review
DJI releases new firmware update for Osmo Action 4 camera
DJI Osmo Action Review: A GoPro Alternative You Should Try
DJI Osmo Action 4 review
DJI Osmo Action 4 Review: Larger Sensor and LOG Video Recording Are a Big Deal
DJI Osmo Action 4 Review
DJI Osmo Action 4 review: Loves low light
The DJI launches new Osmo Action 4 with larger sensor, wider dynamic range, and higher price
DJI's Osmo Action 4 Has a Bigger Sensor That Bumps Up Image Quality
DJI announces Osmo Action 4: new GoPro replacement? - Amateur Photographer
DJI Osmo Action 4 vs DJI Osmo Action 3: What's the difference?
NEEWER 4-Pack Filter Set Compatible with DJI Osmo Action