Compare Sony A7 IV vs Sony A6400
Connectivity
Ports
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 2
HDMI + Microphone + Remote Control + USB 2.0
Wireless Connectivity
802.11ac (dual band) + Bluetooth
802.11b/g/n + NFC + Bluetooth 4.1
Construction
Form Factor
Mirrorless camera
Mirrorless camera
Image Size
Full frame (35.6 x 23.8 mm)
APS-C (23.5 x 15.6 mm)
Lens Mount
Sony E-mount
Sony E-mount
Material
Magnesium alloy
Microphone
Stereo
Stereo
Sensor | Resolution
33 MP (7008 x 4672)
24 MP (6000 x 4000)
Sensor | Type
BSI-CMOS
CMOS
Speakers
Mono
Mono
Dimensions
Size | Depth
80 mm / 3.15 in
60 mm / 2.36 in
Size | Height
96 mm / 3.78 in
67 mm / 2.64 in
Size | Width
131 mm / 5.16 in
120 mm / 4.72 in
Weight
659 g / 23.29 oz
403 g / 14.24 oz
Display
Display Diagonal
3 inch
3 inch
Display Type
Fully articulated TFT LCD
Tilting TFT LCD
Resolution
1,036,800 dots
921,600 dots
Viewfinder | Coverage
100%
100%
Viewfinder | Magnification
0.78x
1.07x
Viewfinder | Resolution
3,686,400 dots
2,359,296 dots
Viewfinder | Type
Electronic
Electronic
Function
AE Bracketing
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
Autofocus
759 focus points
425 focus points
Crop Factor
1.0
1.5
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
Built-in
Flash Sync Speed
1/250 s
1/160 s
GPS
No
No
ISO Range
100 ~ 51200 (expands to 50 ~ 204800)
100 ~ 32000 (expands to 102800)
Image Stabilization
5-axis (5.5 stops)
No
Intervalometer
Yes
Processor
Bionz XR
Bionz X
Touch Screen
Yes
Yes
Video Codecs
MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265
MPEG-4, H.264
Video Recording
Up to 4K 60fps 4:2:2 10bit 600Mbps, FHD 60fps 4:2:2 10bit 222Mbps
4K 30 fps, 1080p 120 fps
Weather Resistance
Yes
Yes
Performance
Battery Life
580 shots
410 shots
Battery Life | Stills
520 shots (Viewfinder) / 580 shots (LCD)
360 shoes (viewfinder) / 410 shots (LCD)
Battery Life | Video
100 min (Viewfinder) / 110 min (LCD)
70 min (viewfinder) / 75 min (LCD)
Dynamic Range
15 stops
Flash Range
6.00 m
Max Burst Rate
10.0 fps
11.0 fps
Shutter Speed
1/8000 to 30 s
1/4000 - 30 s
Storage
One CFexpress Type A/UHS-II SD, One UHS-II SD
SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant)
Production
Availability
2021-12
Battery
NP-FZ100 lithium-ion battery charger
NP-FW50
Debut
2021-10-21
2019-01-15
Model Name
ILCE-7M4
ILCE-6400
Reviews
Neofiliac score
76%
61%
Pros
- 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
- Good 11.0 fps burst rate
- Rather compact
- Quite light
- Weather-sealed
- Viewfinder with great 1.07x magnification
- Supports both WiFi and Bluetooth
Cons
- Viewfinder with low 0.78x magnification
- Low resolution EVF
- Poor touch operation
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