Lumix S1vs A7S III

GearFrame · Updated March 2026

Lumix Lumix S1 Lumix Lumix S1 (2019) Starting from £1499 new Best for Landscape, studio & professional stills on L-mount View Lumix S1
VS
Sony A7S III Sony A7S III (2020) Starting from £2999 new Best for Professional video & low-light filmmaking View A7S III

GearScore™ Verdict — Which should you buy?

Landscape, Studio & Professional Stills On L-Mount — Lumix S1 (2019): Built like a tank with one of the finest viewfinders ever made — the S1 is the choice for photographers who prioritise build quality and IBIS over AF speed.

Professional Video & Low-Light Filmmaking — A7S III (2020): If video is your primary discipline, the A7S III is the camera. 4K/120p at 10-bit in a weather-sealed body with a 9.44M dot EVF is an extraordinary package. The 12MP sensor isn't limiting for video — and it's usable at ISO 409,600 in a pinch.

↓ Full specifications below

Lumix S1 (2019)

  • L-mount system photographers who want a rugged, weather-sealed full-frame body for demanding conditions
  • Landscape and studio photographers who value exceptional IBIS and an outstanding EVF
  • Video professionals who need V-Log and 4K/60p in a robust, weather-sealed body
  • Leica SL users who want a more affordable second body on the same L-mount system

A7S III (2020)

  • Filmmakers and videographers who need 4K/120p at 10-bit
  • Event videographers who shoot in dark venues regularly
  • Documentary filmmakers who need reliable AF and weather sealing
  • Hybrid shooters where video is primary and stills are secondary

Quick take: The lumix s1 has the highest resolution at 24mp; the lumix s1 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Lumix S1 (2019)A7S III (2020)
Price £1,499 £2,999
Sensor 24.2MP full-frame CMOS 12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated)
Resolution 24.2MP 12.1MP
Video 4K/60p (crop), 4K/30p (full-frame), 1080p/180p, V-Log (upgrade) 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
Autofocus DFD contrast-detect AF — reliable but slower than phase-detect rivals Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition
Stabilisation 5-axis IBIS — 6 stops 5.5-stop IBIS
Burst Rate 9fps continuous with AF/AE 10fps mechanical
Battery Life ~380 shots (CIPA) ~600 shots (CIPA) / ~70min continuous 4K recording
Weight 898g body only 699g (body, battery, card)
Dimensions 148.9 × 110.0 × 96.7mm 128.9 × 96.9 × 80.8mm
Weather Sealed Yes Yes
Viewfinder OLED EVF, 5.76M dots, 0.78× — one of the finest EVFs available OLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made
Screen 3.2" touchscreen, tilting 3.0" vari-angle touchscreen, 1.44M dots
Mount L-mount (Leica/Panasonic/Sigma) Sony E-mount
Memory Cards Dual SD UHS-II slots Dual CFexpress Type A / SD UHS-II (both slots)
Connectivity USB-C, Bluetooth, Wi-Fi, 3.5mm mic & headphone jacks USB-C (USB 3.2 Gen 2), full-size HDMI, Wi-Fi 6, Bluetooth
Genre Lumix S1A7S III
Landscape
9.0
Portrait
9.0
7.0
Vlogging & Video
9.0
Travel
7.0
7.0
Street
4.0
9.0
Sports
4.0
Video
9.0
Wildlife
9.0
⚡ Compare specs side by side Lumix S1 prices → A7S III prices →

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