DxOmark posted the full RX10m3 sensor review. The sensor performance as good as the rest of the RX cameras. But there is more than just sensor performance to take into account on the RX10m3:
At first glance, the RX10 III looks like a simple upgrade, but after a quick look at the specifications (and particularly those of the lens), it is so much more than that. While rivals are still scarce in this segment, the new Sony can be thought of as challenger to both the Canon PowerShot G3 X and the Panasonic Lumix DMC-FZ1000. The Sony offers the best features of both models, such as the high-ratio zoom, EVF, and 4K video capabilities, and marries those with the class-leading 1”-type BSI CMOS found on the RX10 II and RX100 IV. At $1500 or thereabouts, it’s not a casual purchase, but given the potential,s it is a tempting option when space and weight are restricted.
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