Every Apple TV 4K Generation Compared and Which One Deserves Your Living Room

The Apple TV 4K you can buy today runs an A15 Bionic chip, weighs half as much as the original, and dropped the internal fan entirely. That matters more than the spec sheet suggests, because which generation of Apple TV 4K sits under your television determines whether you get HDMI 2.1 output, USB-C on the remote, HDR10+ support, and Thread networking for your smart home. Three generations of Apple TV 4K exist right now, and the jump between them is not as straightforward as "newer equals better."

The short answer? If your Apple TV 4K is from 2017, upgrading is a no-brainer. If yours is from 2021, the case for upgrading gets surprisingly thin. The complication is that Apple has been rumored to announce a fourth-generation model with an A17 Pro chip for months, and it still has not materialized.

Three Generations, Three Different Machines

Apple has released three distinct Apple TV 4K models since 2017, and each one changed something that actually affects daily use. Here is what separates them.

Apple TV 4K 1st Generation (2017) launched with the A10X Fusion chip, the same processor that powered the iPad Pro at the time. It weighs 425 grams, stands 1.4 inches tall, and runs an internal fan to manage the heat from that chip. You get HDMI 2.0a, Gigabit Ethernet on every model, and Wi-Fi 5. The original Siri Remote charges via Lightning and has that infamous touch-sensitive trackpad that everyone either loved or threw across the room. Storage options are 32 or 64 gigabytes.

Apple TV 4K 2nd Generation (2021) jumped to the A12 Bionic chip, brought HDMI 2.1 with eARC support, Wi-Fi 6, Bluetooth 5.0, and Thread networking. Same 425-gram weight, same 1.4-inch height. The real story here was the completely redesigned Siri Remote with a circular clickpad, a dedicated power button, and Lightning charging. Every model includes Gigabit Ethernet. Storage stayed at 32 or 64 gigabytes.

Apple TV 4K 3rd Generation (2022) is the current model. A15 Bionic chip, fanless design, and it weighs just 208 grams. Apple cut the size down, switched to USB-C charging on the Siri Remote, and added HDR10+ support alongside Dolby Vision. Here is the catch: Gigabit Ethernet and Thread networking are exclusive to the 128-gigabyte Wi-Fi + Ethernet model. The 64-gigabyte base model is Wi-Fi only. That split did not exist in the 2021 version.

I find that Ethernet decision baffling. If you run a wired home network, Apple effectively forces you into the more expensive configuration. The 2021 model gave every buyer Ethernet without a second thought.

The Specs That Actually Matter Day to Day

This table compares the three Apple TV 4K generations across the features that affect your daily streaming, gaming, and smart home experience. Screen readers: the table lists chip, HDMI version, storage, remote charging, Ethernet, Thread support, weight, and HDR10+ support for each generation.

Two things jump off that table. HDMI 2.1 arrived with the 2021 model and stayed. So if you own the 2017 model and recently bought a TV with eARC, your Apple TV physically cannot take advantage of that audio return channel. That alone can justify an upgrade for anyone running a soundbar or AV receiver through HDMI.

The other standout: Thread networking. If you have been building out a smart home with Matter accessories, Thread creates the mesh backbone that keeps those devices responsive. The 2017 model does not support it at all. The 2021 model supports it on every unit. The 2022 model only supports it on the more expensive configuration. Strange decision, Apple.

Who Should Upgrade and Who Should Wait

You own the 2017 model. Upgrade now. The A10X Fusion chip is five years older than the current A15 Bionic, your HDMI output is a generation behind, you have no Thread support, and your Siri Remote is the one that requires a Lightning cable and an apology every time you accidentally swipe instead of click. The jump from 2017 to 2022 is massive across every measurable dimension.

You own the 2021 model. Wait. The honest difference between the second and third generation is HDR10+ support (which matters only if your TV and your streaming service both support it), a USB-C remote (you can buy the new remote separately for $59), and a lighter box that sits in one place anyway. Unless you specifically need HDR10+ or want the fanless design for a bedroom setup where silence matters, the 2021 model does everything the 2022 model does.

You are buying your first Apple TV 4K. Get the current third-generation 128-gigabyte Wi-Fi + Ethernet model. Do not save $20 on the base model and lose Ethernet and Thread. That $20 difference becomes a regret the first time your Wi-Fi stutters during a 4K Dolby Vision stream and you realize you cannot just plug in a cable.

The Remote Situation Deserves Its Own Section

Apple has produced three Siri Remotes, and they are not all bundled with the generation you would expect.

The original 2017 remote has a flat glass trackpad, no power button, and charges via Lightning. It is genuinely frustrating to use in the dark because both ends feel identical in your hand. The 2021 redesign fixed almost everything. Thicker body, a raised circular clickpad with a center button, a dedicated power button, and an aluminum design that feels like a real remote control instead of a tiny phone. It still charged via Lightning.

The 2022 update swapped Lightning for USB-C and changed absolutely nothing else. Good news: the newest Siri Remote is backward compatible with every Apple TV 4K and even the old Apple TV HD. So if your biggest complaint about an older model is the remote, you can buy the current Siri Remote separately for $59 and skip the box upgrade entirely. That is the smartest move for a lot of 2021 owners right now.

What About the Rumored Fourth Generation?

Apple was expected to announce a new Apple TV 4K at its March 4, 2026 event. That did not happen. The MacBook Neo, MacBook Air M5, and iPad Air M4 showed up. The Apple TV did not.

Credible reports suggest the next Apple TV 4K will use an A17 Pro chip with 8 gigabytes of RAM, which would make it capable of running Apple Intelligence on-device. Wi-Fi 7 support and improved Thread 1.4 networking are also expected. The delay appears tied to Apple wanting a smarter Siri experience to ship alongside new hardware. Think about it: why ship a new box if the software that makes it special is not ready?

If you own the 2021 model and can wait, waiting makes sense. If you own the 2017 model, do not wait. That hardware is old enough that every month you hold out is a month you spend with a noticeably worse experience. And if you want to see what tvOS 26 already brings to the current hardware, check out these tvOS 26.4 settings worth changing.

The Gaming Angle Nobody Talks About

The A15 Bionic in the current Apple TV 4K delivers 50 percent faster CPU and 30 percent faster GPU performance compared to the A12 in the 2021 model. For streaming video, you will never notice. For gaming, you absolutely will. Apple Arcade titles, controller-supported games, and any app using the GPU for visual effects run smoother on the third generation. If you have been building out an Apple TV gaming setup, the A15 chip handles raytracing-lite effects that the A12 simply cannot touch.

The 2017 model with its A10X Fusion? It runs current games, but frame drops in graphically demanding titles are noticeable. Apple Arcade technically supports it, but the experience gap between an A10X and an A15 playing the same game is the kind of thing you feel in your thumbs.

One more thing worth knowing: Apple TV 4K now serves as a legitimate entertainment hub for Formula 1 streaming in 2026, and the smoother performance of the newer chips makes those live sports feeds noticeably more responsive when navigating between camera angles and data overlays.

The Edge Case That Catches People Off Guard

Here is something that almost never comes up in comparison articles. The 2017 Apple TV 4K has an internal cooling fan. It is quiet, but it exists. If you mount your entertainment center in a closed cabinet with limited airflow, that fan draws in dust over time. After a few years, that dust buildup can cause the fan to spin louder than it did on day one. The noise is subtle, a faint whir during quiet movie scenes, but once you hear it, you cannot unhear it.

The 2022 model runs entirely on passive cooling. No fan, no moving parts, no dust accumulation. For a device that sits powered on for years behind a television, that is a meaningful longevity difference that the spec sheet does not capture.