Compare Sony FX3 vs Sony A7R IV vs Sony A7 IV
Connectivity
Ports
USB-C, HDMI, Mic, Sync, Headphone, Hot shoe, LAN
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 2
Wireless Connectivity
NFC, WiFi (802.11a/b/g/n/ac), Bluetooth 5.0
802.11ac + Bluetooth 4.1 + NFC
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 (35.7 x 23.8 mm)
Full frame (35.6 x 23.8 mm)
Lens Mount
E-Mount
Sony E-mount
Sony E-mount
Material
Magnesium alloy
Magnesium alloy
Magnesium alloy
Microphone
Built-in, stereo
Stereo
Stereo
Sensor | Resolution
Approx. 12.9 megapixels(total) / Approx. 10.2 megapixels(effective)
61 MP (9504 x 6336)
33 MP (7008 x 4672)
Sensor | Type
BSI-CMOS
BSI-CMOS
Speakers
Built-in, monaural
Mono
Mono
Dimensions
Size | Depth
84.5 mm / 3.33 inch
78 mm / 3.07 in
80 mm / 3.15 in
Size | Height
77.8 mm / 3.06 inch
96 mm / 3.78 in
96 mm / 3.78 in
Size | Width
129.7 mm / 5.11 inch
129 mm / 5.08 in
131 mm / 5.16 in
Weight
640g / 1lb 6.6oz
665 g / 23.50 oz
659 g / 23.29 oz
Display
Display Diagonal
3.0 in / 7.5 cm
3 inch
3 inch
Display Type
Tilting TFT LCD
Fully articulated TFT LCD
Resolution
1.44 M dots
1,440,000 dots
1,036,800 dots
Viewfinder | Coverage
100%
100%
Viewfinder | Magnification
0.78x
0.78x
Viewfinder | Resolution
5,760,000 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 steps)
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
Autofocus
759 phase-detect AF points, 627 in Movie mode, EV-6 to EV20, Eye AF: Human, Animal, Bird stills ~ Human movie
567 focus points
759 focus points
Crop Factor
1.0
1.0
Exposure Compensation
Ev-3 to EV20
±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
1/125 sec
1/250 s
1/250 s
GPS
No
No
ISO Range
80-102400, extendable to 40-409600
ISO 100 ~ 32000 (expands to 50 ~ 102800)
100 ~ 51200 (expands to 50 ~ 204800)
Image Stabilization
5-axis, 5.5 stops
5.5 stops
5-axis (5.5 stops)
Intervalometer
Yes
Operating Temperature
32 °F to 104 °F (0 °C to 40 °C)
Processor
BIONZ XR engine
Bionz X
Bionz XR
Touch Screen
Yes
Yes
Video Codecs
XAVC S: MPEG-4 AVC/H.264, XAVC HS: MPEG-H HEVC/H.265
MPEG-4, XAVC S, H.264
MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265
Video Recording
Up to 4K UHD (3840x2160) 60fps 600Mbps or 200fps 280Mbps | HDMI out: 4264x2408, up to 60p 16bit
Up to 4K 60fps 4:2:2 10bit 600Mbps, FHD 60fps 4:2:2 10bit 222Mbps
Weather Resistance
Dust and moisture
Yes
Yes
Performance
Battery Life
670 shots
580 shots
Battery Life | Stills
600 shots (LCD)
530 shots (Viewfinder) / 670 shots (LCD)
520 shots (Viewfinder) / 580 shots (LCD)
Battery Life | Video
95 min (LCD)
90 min (Viewfinder) / 105 min (LCD)
100 min (Viewfinder) / 110 min (LCD)
Dynamic Range
15+ stop (S-Log3)
15 stops
15 stops
Max Burst Rate
30 fps Electronic Shutter / 10 fps Mechanical Shutter
10.0 fps
10.0 fps
Shutter Speed
1/8000 to 30 sec Stills, 1/8000 to 1/4 sec Video
1/8000 to 30 s
1/8000 to 30 s
Storage
2x SD (UHS-I & UHS-II compatible) / CFexpress Type A
Dual SD/SDHC/SDXC (UHS-II compatible)
One CFexpress Type A/UHS-II SD, One UHS-II SD
Production
Availability
2021-03
2021-12
Battery
NP-FZ100
NP-FZ100 lithium-ion battery & charger
NP-FZ100 lithium-ion battery charger
Debut
2021-02-23
2019-07-16
2021-10-21
Made In
Thailand
Model Name
ILCE-7RM4
ILCE-7M4
Reviews
Neofiliac score
85%
76%
Pros
- Long battery life
- 5.5 stops of IBIS
- Good 10.0 fps burst rate
- Rather compact
- Exceptionally high 61 MP resolution
- Weather-sealed
- High resolution EVF
- 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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