Compare Leica SL3-S vs Sony Alpha 1 II

In this technical comparison between the Leica SL3-S and the Sony Alpha 1 II, we analyze the key features to help you choose.

Choosing between these two Cameras models often comes down to your budget, with prices around $5,295 USD / €5,190 (Body only at launch) and $6,499.99 USD.

Specifications Leica
SL3-S
Sony
Alpha 1 II
Leica SL3-S Sony Alpha 1 II
Launch
Release Version January 2025 December 2024
Body
Body Dimensions 141.2× 108× 82.7 mm 136.1× 96.9× 82.9 mm
Weight 852g (with battery and SD card); 768g (Body only) 743g (with battery and card) / 658g (Body only)
Mount Leica L-Mount Sony E-mount
Weather Sealing IP54-certified (Dust and splash protected) Yes (Enhanced dust and moisture resistance; inherits a9 III body design)
Sensor
Sensor Technology BSI-CMOS Full-Frame Sensor Stacked BSI Exmor RS CMOS with dedicated AI Processing Unit
Size 36× 24 mm Full-frame (35.9× 24.0 mm)
Image Resolution 24.6 Megapixels (Effective) 50.1 Megapixels
ISO Sensitivity 100–100,000 (Expandable to 50–200,000) 100 - 32,000 (Stills expandable to 50–102,400)
Image Stabilization 5-Axis In-Body Image Stabilization (IBIS); 5.0 stops compensation 5-Axis In-Body Image Stabilization (IBIS); 8.5 stops (Center) / 7.0 stops (Periphery)
Display & Viewfinder
Rear screen 3.2-inch Tilting Touchscreen LCD (2.3M dots) 3.2-inch 4-axis Multi-angle Touchscreen LCD (2.1M dots)
Viewfinder EyeRes OLED EVF (5.76M dots), 0.78x magnification, up to 120 fps refresh rate 0.64-type QXGA OLED EVF (9.44M dots), 0.90x magnification, up to 240 fps refresh rate
Autofocus
AF Points 779 Phase Detection points + 315 Contrast areas 759 points (Phase-detection) covering 92% of the sensor
Autofocus System Hybrid AF (PDAF + Depth Map/Object Detection + Contrast) Fast Hybrid AF with AI-based Real-time Recognition
AI Subject Recognition Yes (Human/Animal Detection including Body, Face, and Eye) Humans (improved by 30%), Animals, Birds, Insects, Cars, Trains, and Airplanes
Photo
Continuous shooting Up to 30 fps (Electronic Shutter, 12-bit) / 9 fps (Mechanical Shutter) Up to 30 fps (Electronic Shutter) with full AF/AE tracking; 10 fps (Mechanical)
Formats DNG (RAW), DNG + JPEG, JPEG; 96MP Multi-shot mode (Handheld/Tripod) RAW (Compressed/Lossless/Uncompressed), JPEG, HEIF (4:2:0 / 4:2:2) --- Pre-Capture (up to 1 sec), Speed Boost, 199MP Pixel Shift Multi Shooting
Video
Video Performance 6K Open Gate (3:2) up to 30p; C4K/4K up to 60p 8K at up to 30p; 4K at up to 120p (10-bit 4:2:2)
Bit-depth Internal 10-bit 4:2:2 (All-I/LongGOP); Supports ProRes 422 HQ (up to 5.8K) 10-bit internal; 16-bit RAW output via HDMI
Audio Connectivity Yes (3.5 mm for both) Yes (3.5 mm for both); supports 4-channel audio via Multi Interface Shoe
HDMI output Full-size HDMI 2.1 (Type-A); 5.9K RAW output supported Full-size HDMI (Type-A)
Storage
Card slots Dual Slots Dual Slots (Both slots are hybrid)
Sensor Technology 1x CFexpress Type B, 1x SD/SDHC/SDXC (UHS-II) CFexpress Type A or SD (UHS-I/UHS-II)
Connectivity
Wi-Fi 2.4/5 GHz with 2x2 MIMO support Wi-Fi 5 (802.11ac) 2x2 MIMO
Bluetooth Bluetooth 5.0 LE Bluetooth 5.0
USB / HDMI USB-C 3.1 Gen 2 (10 Gbps, supports charging/PD and Direct-to-SSD recording) / Full HDMI USB-C (USB 3.2 Gen 2, 10Gbps) / Full HDMI / 2.5G Ethernet (RJ45)
Battery
Model BP-SCL6 NP-FZ100
Battery Life Approx. 315 shots Approx. 420 shots (EVF) / 520 shots (LCD)
USB charging Yes (USB-C Power Delivery and Charging) Yes (USB-PD Power Delivery supported)
Misc
Inside the box Leica SL3-S Body, BP-SCL6 Battery, USB-C Cable, Carrying Strap Alpha 1 II Body, NP-FZ100 Battery, BC-ZD1 Dual Battery Charger, USB-C Cable, Shoulder Strap, Two Eyecups (Standard & Deep)
Price $5,295 USD / €5,190 (Body only at launch) $6,499.99 USD
Full Details SL3-S - Full Specifications Alpha 1 II - Full Specifications