The
Amcrest is 5MP on the 1/2.7" sensor and claims 0.008 Lux @ F1.6
The Hikvision is 8MP on the 1/2.5" sensor and claims a worse 0.01 lux @ F1.2
Neither one is on the ideal MP/Sensor ratio and based on the lighting specs, the Amcrest is better at night, and I would probably agree based on the sensor sizes.
I say save your money for cameras that fall on the ideal MP/sensor ratio.
Everyone shops for a camera with a different approach to what might be the best camera for their install. I always check MP against sensor size as a way to remove undesirable cameras from my search. Once I found a camera with a desirable MP and sensor combo, I would then dig deeper on FOV...
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