Nikon D610 vs Nikon D800 Specification comparison review, take a look at the specification comparison review of both the camera below.
Sensor and low-light performance: Nikon D800 features more resolution compared to Nikon D610 DSLR (24 MP vs 36 MP) but the Sensor size remains same (35.9 X 24mm), it’s obvious that Nikon D800 photodiodes are small compared to Nikon D610, hence the D610 will give Slightly better low-light performance compared to Nikon D800.
Advance AF System in Nikon D800: Nikon D800 features advance AF system with 51 AF points and 15 cross-type focus points on the other side we have Nikon D610 with 39 AF points and 9 cross-type focus points.
Shutter Range: I never used shutter speed more than 1/4000.
Form the specification comparison table we can clearly see that Nikon D800 is a Megapixel monster that also features advance AF system and better shutter range compared to Nikon D610. But the Nikon D610 DSLR is affordable and also give Slightly better low-light performance compared to Nikon D800 , the body of D610 will cost is approx $2K and the D800 body cost is approx $2.7K.
Verdict: For entry level users we recommend you to buy Nikon D610 DSLR.