Product Price Sensor Size (mm) Megapixels Shutter Speed (sec) Continuous Shooting Speed (fps) Autofocus Points Video Resolution (pixels) Image Stabilization
Fujifilm X-T50
US
£1418.72 23.5 mm x 15.7 mm (APS-C) 40.2 MP 30 sec - 1/4000 sec mechanical; 30 sec - 1/180000 sec electronic 8 fps mechanical; 20 fps (electronic, 1.29x crop) 117 or 425 Up to 6.2K 30p; 4K 60p; Full HD 240p

The Fujifilm X-T50 is a compact APS-C mirrorless camera with a 40.2MP X-Trans CMOS 5 HR sensor, X-Processor 5, subject-detection AF, and up to 7 stops of in-body image stabilization. It records up to 6.2K/30p internally in 10-bit 4:2:2 and offers a dedicated Film Simulation dial, tilting touchscreen, and a lightweight 438g body, making it suitable for travel and high-resolution stills.

★ Ideal for

Not the smallest/lightest overall, but its compact 438g body and 40.2MP sensor make it a strong choice if you want high resolution in a relatively small, stabilized mirrorless body.

Ricoh GR IIIx
US
£933.12 APS-C 24.24 1/4000 to 30s (bulb available) 6 fps Multi-point hybrid AF (phase-detect + contrast) with 8 focus modes 1920 x 1080 (1080p) up to 59.94 fps

The Ricoh GR IIIx is an ultra-compact fixed-lens camera with a 24.24MP APS-C sensor and a 40mm-equivalent f/2.8 lens, offering IBIS, a built-in 2-stop ND filter, and a touchscreen interface. It targets street and travel photographers who want high image quality in a pocketable body with responsive controls and effective shake reduction.

★ Ideal for

Well suited because its APS-C sensor (24.24 MP), 3-axis sensor-shift IBIS, and pocketable dimensions deliver high image quality with true portability, making it one of the smallest high-performance APS-C cameras.

Sony ZV-E10
US
£558.82 APS-C (23.6 x 15.7 mm) 24.2 1/4000 to 30 s (electronic) 11 fps 425 4K (3840 x 2160) up to 30p; 1080p up to 120p

The Sony ZV-E10 is an APS-C mirrorless camera tailored for vloggers and content creators, offering a 24MP sensor, fast hybrid autofocus, fully articulating selfie screen, and 4K video capture. It lacks in-body image stabilization but supports optical stabilization via OSS lenses and electronic Active stabilization for video, making it compact and flexible with interchangeable E-mount lenses.

★ Ideal for

Not the smallest or lightest mirrorless camera; suitable if you want an APS-C 24.2MP interchangeable-lens vlogging camera with 4K video and 11 fps burst, but its size and weight are larger than the smallest mirrorless models.

Canon EOS R100
US
£320.50 22.3 x 14.9 mm 24.1 1/4000 to 30 sec 6.5 fps 3975 3840 x 2160 (4K) at 23.98/25 fps; 1920 x 1080 at 59.94 fps

The Canon EOS R100 is a compact, entry-level APS-C mirrorless camera with a 24.1MP sensor, Dual Pixel CMOS AF, 6.5 fps continuous shooting, and 4K/24p video (cropped). Its small, lightweight body and RF-mount lens compatibility make it a simple, affordable option for beginners and travel shooters. It lacks in-body stabilization and a fully articulating touchscreen, keeping the feature set basic.

★ Ideal for

Its 116.3 x 85.5 x 68.8 mm body, 356 g weight (body only), 24.1MP APS-C sensor, and 6.5 fps burst make it well suited to being the smallest and lightest mirrorless camera for users wanting a true interchangeable-lens APS-C system.

Olympus OM System OM-EM10 Mark IV
US
£522.96 Micro Four Thirds 20.3 MP Mechanical 1/4000 sec Electronic 1/16000 sec 15 fps (electronic) / 8.7 fps (mechanical) 121-point contrast-detection 4K UHD up to 30p

Compact Micro Four Thirds mirrorless with a 20.3MP Live MOS sensor, 5-axis in-body stabilization, 121-point AF and 4K video; lightweight and feature-rich for travel, vlogging and everyday photography. It offers fast burst modes and a flip-down touchscreen for selfies and content creators.

★ Ideal for

Suitable for the question because its small Micro Four Thirds sensor, 335g body weight and compact dimensions make it one of the lightest and most portable mirrorless cameras available.

OM System OM-5
US
£896.50 Four Thirds 20.4 1/8000 - 60 s 30 fps 121 4K UHD 3840x2160 up to 30p

The OM System OM-5 is a compact Micro Four Thirds mirrorless camera with a 20.4MP Live MOS sensor, advanced 5-axis in-body image stabilization, and weather-sealed construction. It offers high-speed shooting up to 30 fps, 4K video up to 30p, and computational modes like handheld high-res and Starry Sky AF, making it suited to travel and outdoor photography.

★ Ideal for

Ideal for the question because at 370g body weight and a compact Four Thirds 20.4MP sensor with up to 6.5 stops IBIS it is one of the smallest and lightest feature‑rich mirrorless cameras available.

Panasonic Lumix G100D
US
£522.93 17 x 13mm 20.3 1/16000 - 60s 10 FPS 49 3840x2160

The Lumix G100D is a compact Micro Four Thirds mirrorless camera with a 20.3MP sensor, built-in OLED EVF, vari-angle touchscreen, OZO spatial audio and 4K video recording. It includes vlogger-friendly features (Frame Marker, REC indicator) and a lightweight body suited for one-handed shooting and travel content creation. It ships as a kit with a 12-32mm lens and USB-C connectivity.

★ Ideal for

This camera suits the 'smallest and lightest mirrorless' question because it is a lightweight Micro Four Thirds body at 352g and compact dimensions 116 x 83 x 54mm while still offering 20.3MP and 4K video.