Compare Sony A7S III vs Sony A7R IV vs Sony ZV1

Sony A7S III (Alpha 7S III) Full-Frame Mirrorless Camera (2020)

Sony A7R IV / A7R IVa (A7R4) Full-Frame Mirrorless Camera (2019)

Sony | Cameras

Connectivity

Ports

HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1

HDMI + Microphone + Remote Control + USB 2.0

Wireless Connectivity

802.11ac (dual band) + Bluetooth

802.11ac + Bluetooth 4.1 + NFC

802.11ac + Bluetooth

Construction

Adjustment | Tilt

Open to 176 deg, Rotate 270 deg

Adjustable up 107 deg, down 41 deg

Form Factor

Mirrorless camera

Compact camera with zoom lens

Image Size

Full frame (35.6 x 23.8 mm)

Full frame (35.7 x 23.8 mm)

1″ (13.2 x 8.8 mm)

Lens

ZEISS Vario-Sonnar T

Lens Mount

Sony E-mount

Material

Magnesium alloy

Microphone

Stereo

Sensor | Resolution

12 MP (4240 x 2832)

61 MP (9504 x 6336)

20 MP (5472 x 3648)

Sensor | Type

BSI-CMOS

Speakers

Mono

Dimensions

Size | Depth

81 mm / 3.19 in

78 mm / 3.07 in

44 mm / 1.73 in

Size | Height

97 mm / 3.82 in

96 mm / 3.78 in

60 mm / 2.36 in

Size | Width

129 mm / 5.08 in

105 mm / 4.13 in

Weight

699 g / 24.70 oz

665 g / 23.50 oz

294 g / 10.39 oz

Display

Display Diagonal

3 inch

Display Type

Fully articulated TFT LCD

Tilting TFT LCD

Fully articulated TFT LCD

Resolution

1,440,000 dots

921,600 dots

Viewfinder | Coverage

100%

Viewfinder | Magnification

0.91x

0.78x

Viewfinder | Resolution

9,440,000 dots

5,760,000 dots

Viewfinder | Type

Electronic

None

Function

AE Bracketing

±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)

±3 (3 frames at 1/3 EV steps)

Angle Of View

84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (tele)

Aperture

f/1.8 (wide) ~ f/2.8 (tele)

Autofocus

759 focus points

567 focus points

315 focus points

Crop Factor

1.0

2.7

Exposure Compensation

±5 (at 1/3 EV, 1/2 EV steps)

±3 (at 1/3 EV steps)

Exposure Mode

Auto / Aperture Priority / Shutter Priority / Manual

Filter

ND Filter: Auto / On (3 steps) / Off

Flash Sync Speed

1/250 s

Focal Length

8.9 mm ~ 25.9 mm

Focal Length (35mm Equivalent)

24 mm ~ 70 mm

GPS

ISO Range

80 ~ 102400 (expands to 40 ~ 409600)

ISO 100 ~ 32000 (expands to 50 ~ 102800)

125 ~ 12800, extendable to 80 ISO ~ 25600 ISO

Image Stabilization

5-axis (5.5 stops)

5.5 stops

Optical

Intervalometer

Yes

Processor

Bionz XR

Bionz X

Touch Screen

Yes

Video Codecs

MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265

MPEG-4, XAVC S, H.264

MPEG-4, AVCHD, XAVC S

Video Recording

Up to 4K 120p 10bit 4:2:2, up to FHD 240p

4K 30p, 1080i

Weather Resistance

Yes

Zoom

2.9x optical zoom, Digital zoom available

Performance

Battery Life

600 shots

670 shots

260 shots

Battery Life | Stills

510 shots (Viewfinder) / 600 shots (LCD)

530 shots (Viewfinder) / 670 shots (LCD)

Battery Life | Video

80 min (Viewfinder) / 95 min (LCD)

90 min (Viewfinder) / 105 min (LCD)

Dynamic Range

15 stops

Max Burst Rate

10.0 fps

24.0 fps

Min Focus Distance

50 mm / 1.97 in

Shutter Speed

1/8000 to 30 s

1/32000 s (electronic) / 1/2000 s (mechanical) ~ 30 s

Storage

Dual SD/CFexpress Type A slots

Dual SD/SDHC/SDXC (UHS-II compatible)

SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo

Production

Availability

2020-09

Battery

NP-FZ100 lithium-ion battery charger

NP-FZ100 lithium-ion battery & charger

NP-BX1 lithium-ion battery & USB charger

Debut

2020-07-28

2019-07-16

2020-05-26

Made In

Thailand

Model Name

ILCE-7SM3

ILCE-7RM4

Reviews

Neofiliac score

84%

85%

81%

Pros

Fully articulated LCD
Long battery life
80 base ISO
5.5 stops of IBIS
Good 10.0 fps burst rate
Rather compact
Weather-sealed
Supports CFExpress Type A card
Very high resolution EVF
Supports both WiFi and Bluetooth

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
Extraordinary 24.0 fps burst rate
Very light
Supports both WiFi and Bluetooth

Cons

Very low 12 MP resolution

Viewfinder with low 0.78x magnification

Poor battery life
125 base ISO
Low 20 MP resolution
Lacks weather sealing

Price

Offers (incl. referral links)

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