Sony a6100 vs a6400

Two Sony APS-C bodies from 2019 with the same 24.2MP sensor, 425-point AF with Real-time Eye AF, 11 fps, flip-up touchscreen and 4K/30p, and no in-body stabilization on either. The a6400 adds a sharper finder, picture profiles with S-Log, a deeper buffer and sensor anti-dust; the a6100 gets a few more shots per charge.

Sample photo taken with the a6100: the Tagus river below Toledo after snowfall, with an old stone bridge — **Sony a6100**24.2MP APS-C · sample photo · launched at $750 in 2019Photo: Antonio Soler via Wikimedia Commons, CC BY 2.0 (resized)

Sony a6400 body fitted with the Sony Zeiss 16-70mm F4 zoom, on a white background — **Sony a6400**24.2MP APS-C · launched at $900 in 2019Photo: David (Brokentaco) via Flickr, CC BY 2.0 (resized)

Side-by-side specs

	Sony a6100	Sony a6400
Sensor	24.2MP APS-C Exmor CMOS	Same
Autofocus	425 phase-detection + 425 contrast-detection points; Real-time Eye AF and Tracking	Same
ISO (stills)	100–32000; expandable to 51200	100–32000; expandable to 102400
Bursts / buffer	11 fps; about 33 RAW / 76 JPEG	11 fps; about 46 RAW / 99 JPEG
Stabilization	Not in body	Not in body
Viewfinder	0.39-type, 1,440,000 dots, 0.70x	0.39-type, 2,359,296 dots, 0.70x; 120 fps finder mode
Screen	3.0-type 921,600-dot touchscreen; tilts up about 180°, down about 74°	Same
Picture profiles	None	PP1–PP10, incl. S-Log2, S-Log3 and HLG
Video	4K at 30p/24p; Full HD up to 120p	Same
Sensor anti-dust	Not listed	Charge protection coating and ultrasonic vibration
Card	One SD (UHS-I) / Memory Stick Duo	Same
Audio	Mic input; no headphone jack	Same
Battery (CIPA, viewfinder / LCD)	NP-FW50; about 380 / 420 shots	NP-FW50; about 360 / 410 shots
Size	120.0 × 66.9 × 59.4 mm	120.0 × 66.9 × 59.7 mm
Weight	About 396 g with battery and card	About 403 g with battery and card
Launch price	Aug 28, 2019; $750 body-only (US)	Jan 15, 2019; $900 body-only (US)

Specs from Sony USA's ILCE-6100 and ILCE-6400 specifications pages, Sony Electronics' August 28, 2019 release and the Sony specs cited in our a6400 review; US launch prices from Sony. ✓ = advantage; blank = tie or not directly comparable.

Sample photos

Four photos taken with the Sony a6100 and four with the Sony a6400, shared on Wikimedia Commons under open licenses.

Sample photo 1 of 8 taken with the Sony a6100 — Taken with the Sony a6100. Photo: Börste via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 2 of 8 taken with the Sony a6100 — Taken with the Sony a6100. Photo: Muhny via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 3 of 8 taken with the Sony a6100 — Taken with the Sony a6100. Photo: Milanderoo via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 4 of 8 taken with the Sony a6100 — Taken with the Sony a6100. Photo: Börste via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 5 of 8 taken with the Sony a6400 — Taken with the Sony a6400. Photo: Domenico Marrano via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 6 of 8 taken with the Sony a6400 — Taken with the Sony a6400. Photo: Vengolis via Wikimedia Commons, CC BY-SA 4.0 (resized)

Sample photo 7 of 8 taken with the Sony a6400 — Taken with the Sony a6400. Photo: Noomen9 via Wikimedia Commons, CC0 (resized)

Sample photo 8 of 8 taken with the Sony a6400 — Taken with the Sony a6400. Photo: T.J. Tony Hsiao via Wikimedia Commons, CC BY-SA 4.0 (resized)

Who should buy which

Buy the a6100 if…

You shoot mostly stills for family, travel and learning: same sensor, AF, 11 fps and flip-up screen.
You want a few more shots per charge: about 380 / 420 vs 360 / 410 (CIPA, viewfinder / LCD).

Buy the a6400 if…

You work through the viewfinder a lot: 2.36M dots vs 1.44M.
You grade video: picture profiles with S-Log2, S-Log3 and HLG.
You shoot long bursts: about 46 RAW frames of buffer vs 33.
You want Sony's sensor anti-dust system.

Both bodies share the 24.2MP sensor, 425-point AF with Real-time Eye AF, 11 fps, the flip-up touchscreen, 4K/30p and one UHS-I slot, and neither has in-body stabilization. See our full a6100 and a6400 reviews, or all comparisons.

Where to buy

Sony a6100

a6100 · body (new)

Sony a6100: Launched at $750 in 2019 (Sony's US launch price, August 28, 2019).

Check price
Read the full Sony a6100 review

Sony a6400

a6400 · body (new)

Sony a6400: Launched at $900 in 2019 (Sony's US launch price, January 15, 2019).

Check price
Read the full Sony a6400 review

APERTURE NOTES is reader-supported. As an Amazon Associate we earn from qualifying purchases made through links on this page.