Generally, some of the advantages of the Nikon P600 compared to mirrorless interchangeable-lens competitors include: it records higher quality movies (1080p @ 30fps vs 720p @ 30fps), has higher quality type of viewfinder (digital vs none), records high-speed movies (120 fps vs none), has better image stabilization (lens vs none) and is newer (february 2014 vs may 2010).
However, on average it takes significantly lower resolution photos (9.7 MP vs 24 MP), slightly lower maximum light sensitivity (1,600 ISO vs 51,200 ISO), doesn't have a touch screen, doesn't record movies in 24p and has a slightly smaller sensor (1/2.3" 6.17x4.55mm vs APS-C 23.5x15.6mm).
Sony Alpha a6500
2 years newer
$1,098 (body only)
$1,498 18-135mm lens
Significant advantages of the Alpha a6500 (vs the P600)
- Has a touch screen
- Has interchangeable lenses
- Much higher true resolution: 24 MP vs 9.7 MP
Significant disadvantages of the Alpha a6500 (vs the P600)
- Worse image stabilization:
- Sensor shift
vs - Lens
common strengths of the Alpha a6500 and P600
- Each has a built-in flash
Sony Alpha A6000
similar age
$379 - $498 (body only)
$479 - $598 16-50mm lens
Significant advantages of the A6000 (vs the P600)
- Supports 24p
- Has interchangeable lenses
- Much higher true resolution: 24 MP vs 9.7 MP
Significant disadvantages of the A6000 (vs the P600)
- Doesn't record high-speed movies: None vs 120 fps
common strengths of the A6000 and P600
- Very good image stabilization:
- Lens
vs - Lens
- Inexpensive: $379.00 vs $699.99
- Each has a built-in flash
Sony Alpha NEX-3
3 years older
$398 (body only)
Significant advantages of the NEX-3 (vs the P600)
- Has interchangeable lenses
- Has an external mic jack
- Much smaller: Compact (117×62×33 mm) vs Professional size (125×85×107 mm)
Significant disadvantages of the NEX-3 (vs the P600)
- No image stabilization: None vs
- Lens
- Doesn't record high-speed movies: None vs 120 fps
- No viewfinder: None vs Digital
common strengths of the NEX-3 and P600
- Inexpensive: $398.00 vs $699.99