How to pick the right Sony
Start with sensor size. Most people want APS-C— the a6400, ZV-E10 and the step-up a6700 all use it — because it delivers excellent photos and clean 4K in a smaller, cheaper body, and it takes the same E-mount lenses as the full-frame line. Full-frame (the a7 IV and a7 III) gathers more light and gives shallower background blur, but the bodies and lenses are bigger, heavier and far more expensive. Buy full-frame only if low-light performance or paid work genuinely calls for it; our full-frame vs APS-C guide walks through the trade in plain terms.
Then decide whether you need a viewfinder. The a6400 has one, which matters the moment you shoot stills outdoors where a rear screen washes out. The ZV bodies drop the viewfinder deliberately — they’re built to be shot off a flip-out screen while you talk to the lens, with creator features like a background-blur button and a better built-in mic. If you mostly film yourself, that trade is the right one; if you shoot as many photos as videos, get the viewfinder.
The last question is the lens, because it changes your images more than the body ever will. Sony’s E-mount has the widest, most affordable lens selection of any system, with strong third-party support from Sigma and Tamron — which is a real reason to buy Sony in the first place. Whatever body you choose, budget for one good fast prime early: our Sony APS-C lens guide and portrait lens guide are the best next step, and a microphone will do more for your video than any sensor upgrade.
A note on the models we left off
Sony’s lineup runs deep, and a few bodies just missed the cut here. The a6700is Sony’s flagship APS-C camera — it adds in-body stabilization and the AI autofocus from the full-frame line — and it’s the one to grow into if YouTube is a job rather than a hobby; it is the step-up pick in our cameras for YouTube guide. The newer ZV-E10 II adds uncropped 4K60 over the original ZV-E10, which we cover in our ZV-E10 vs ZV-E10 II comparison. We feature bodies here that show a live, verified price so every recommendation comes with a reachable buy button; where a model is between stock, we point you to the guide that covers it rather than list a stale number.
Most Sony buyers end up choosing between two specific bodies, so the comparisons are worth going straight to: a6400 vs ZV-1 II and ZV-E10 vs ZV-1 II for interchangeable-lens versus pocket compact, ZV-1 II vs ZV-E10 II for the current pair, a6400 vs a7 III for the APS-C or full-frame question, and a7 IV vs a7 III at the top of the range. If Canon is also on your list, Sony vs Canon for video covers the system decision behind all of them.