The Nikon 1 J5 got 65 points sensor score and has good improvements in performance over earlier models.
From DxOMark conclusion:
“On paper at least, the Nikon 1 J5 looks like a serious contender in the mid-range mirrorless segment. In the past, the Nikon 1 models have lagged behind in sensor performance but with the shift to this back-illuminated 20.8-Mpix sensor, that’s no longer the case. The sensor in the Nikon 1 J5 is comparable in performance to the unit found in the Sony Cyber-shot RX100 models, and we assume it’s the same or at least a related sensor. It’s a welcome boost for Nikon in this segment, competing not only with the small Sony compacts but also some larger (Micro-Four-Thirds) sensors, such as that found in the highly-regarded Panasonic Lumix DMC-LX100. The Nikon 1 J5 is the first mirrorless model with interchangeable lenses to adopt this sensor, and as a result, the future of the Nikon 1 system as a whole now looks a lot more promising.”
Nikon 1 J5 vs Nikon 1 J4 vs Nikon 1 V3
Nikon 1 J5 vs Panasonic Lumix DMC-LX100 vs Sony Cyber-shot DSC RX100 III
Blending speed, versatility, and image quality, the Nikon 1 J5 is a sleek mirrorless digital camera designed for the multimedia photographer on-the-go. Featuring a 20.8MP CX-format BSI CMOS sensor and EXPEED 5A image processor, the J5 is capable of recording up to 20 fps with continuous autofocus as well as UHD 2160p/15 or full HD 1080p/60 video. A top sensitivity of ISO 12800 benefits working in difficult lighting conditions while the BSI design of sensor helps to achieve greater image clarity with reduced noise levels and the omission of an optical low-pass filter further contributes to a high degree of sharpness and resolution.