Compare Sony A9 II vs Sony A7 IV
Connectivity
Ports
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 2
Wireless Connectivity
802.11ac + NFC + Bluetooth
802.11ac (dual band) + Bluetooth
Construction
Adjustment | Tilt
Adjustable up 107 deg, Down 41 deg
Form Factor
Mirrorless camera
Mirrorless camera
Image Size
Full frame (35.6 x 23.8 mm)
Full frame (35.6 x 23.8 mm)
Lens Mount
Sony E-mount
Sony E-mount
Material
Magnesium alloy
Magnesium alloy
Microphone
Stereo
Stereo
Sensor | Resolution
24 MP (6000 x 4000)
33 MP (7008 x 4672)
Sensor | Type
Stacked CMOS
BSI-CMOS
Speakers
Mono
Mono
Dimensions
Size | Depth
76 mm / 2.99 in
80 mm / 3.15 in
Size | Height
96 mm / 3.78 in
96 mm / 3.78 in
Size | Width
129 mm / 5.08 in
131 mm / 5.16 in
Weight
678 g / 23.96 oz
659 g / 23.29 oz
Display
Display Diagonal
3 inch
3 inch
Display Type
Tilting TFT LCD
Fully articulated TFT LCD
Resolution
1,440,000 dots
1,036,800 dots
Viewfinder | Coverage
100%
100%
Viewfinder | Magnification
0.78x
0.78x
Viewfinder | Resolution
3,686,400 dots
3,686,400 dots
Viewfinder | Type
Electronic
Electronic
Function
AE Bracketing
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
Autofocus
693 focus points
759 focus points
Crop Factor
1.0
1.0
Exposure Compensation
±5 (at 1/3 EV, 1/2 EV steps)
±5 (at 1/3 EV, 1/2 EV steps)
Exposure Mode
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
Flash Sync Speed
1/250 s
1/250 s
GPS
No
No
ISO Range
ISO 100 ~ 51200 (expands to 50 ~ 204800)
100 ~ 51200 (expands to 50 ~ 204800)
Image Stabilization
5-axis (5.5 stops)
5-axis (5.5 stops)
Intervalometer
Yes
Processor
BIONZ X
Bionz XR
Touch Screen
Yes
Yes
Video Codecs
MPEG-4, AVCHD, H.264
MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265
Video Recording
Up to 4K 60fps 4:2:2 10bit 600Mbps, FHD 60fps 4:2:2 10bit 222Mbps
Weather Resistance
Yes
Yes
Performance
Battery Life
690 shots
580 shots
Battery Life | Stills
500 shots (Viewfinder) / 690 shots (LCD)
520 shots (Viewfinder) / 580 shots (LCD)
Battery Life | Video
110 min (Viewfinder) / 120 min (LCD)
100 min (Viewfinder) / 110 min (LCD)
Dynamic Range
15 stops
Max Burst Rate
20.0 fps
10.0 fps
Shutter Speed
1/32000 s (electronic) / 1/8000 s (mechanical) ~ 30 s
1/8000 to 30 s
Storage
Dual SD/SDHC/SDXC slots (UHS-II compatible)
One CFexpress Type A/UHS-II SD, One UHS-II SD
Production
Availability
2021-12
Battery
NP-FZ100
NP-FZ100 lithium-ion battery charger
Debut
2019-10-03
2021-10-21
Made In
Thailand
Model Name
ILCE-9M2
ILCE-7M4
Reviews
Neofiliac score
77%
76%
Pros
- Exceptional readout speed thanks to stacked sensor
- Long battery life
- 5.5 stops of IBIS
- Extraordinary 20.0 fps burst rate
- Rather compact
- Weather-sealed
- Supports both WiFi and Bluetooth
- Fully articulated LCD
- Long battery life
- 5.5 stops of IBIS
- Good 10.0 fps burst rate
- Weather-sealed
- Supports CFExpress Type A card
- Supports both WiFi and Bluetooth
Cons
- Viewfinder with low 0.78x magnification
- Viewfinder with low 0.78x magnification
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