· Firestick.io Team · News · 11 min read
All New Walmart Onn 4K Pro V2 Leak: What to Expect
The Walmart Onn 4K Pro V2 (JS620K4) has cleared FCC with an upgraded S905X5M chip, Wi-Fi 6, Thread/Matter smart home support, and AI upscaling on Google TV. Here's everything the leak tells us.
I’ve been running the original Onn 4K Pro as my main living room device for the past several months — and when I started seeing empty shelves at Walmart locations in multiple major cities, I knew something was up. Then the FCC filing dropped for model JS620K4 and it confirmed what the empty shelves were already saying: a successor is coming, and it’s a meaningful upgrade.
The Onn 4K Pro V2 leaks point to a 6nm processor, Wi-Fi 6, Thread radio for Matter smart home support, AI super resolution upscaling, and full Dolby Vision/Atmos — all on Google TV, all at what will almost certainly be a budget price point. As of March 2026, it hasn’t launched. But between the FCC approval and the stock clearances, it’s close.
Here’s everything we know, how it stacks up against the competition, and what to do while you wait.
The Walmart Onn 4K Pro V2 (model JS620K4) is an FCC-approved but unreleased Google TV streaming device featuring the upgraded Amlogic S905X5M chip, 3GB RAM, 32GB storage, Wi-Fi 6, Thread/Matter smart home support, AI upscaling, and Dolby Vision/Atmos. No price or launch date has been confirmed. If you need something today, the Onn 4K Plus ($77 on Amazon) uses the same processor and is available right now.
What I Was Looking For
I’ve been tracking the Onn lineup since it started pulling Firestick switchers — the value-to-performance ratio was already hard to argue against at $50. With the V2 leak, I was focused on three things: whether the chip upgrade is real and meaningful, whether the new features (Thread/Matter, AI upscaling) are actually useful or just spec-sheet noise, and whether the timing makes sense to wait or just buy the current Plus model.
I tested the original Onn 4K Pro directly. For the V2, everything below comes from the FCC filing and corroborating spec leak data — not hands-on time with hardware that doesn’t exist yet.
The FCC Filing: What JS620K4 Actually Tells Us
FCC approvals are the closest you get to a product announcement before a company is ready to talk. Model JS620K4 cleared the filing with enough hardware detail to build a real picture.
The headline is the Amlogic S905X5M — a 6nm chip running a quad-core Cortex-A55 at 2.5GHz with a Mali-G310 v2 GPU. The original Onn 4K Pro used the S905X4 on a 12nm process. That node shrink from 12nm to 6nm isn’t just marketing: it means lower heat, better power efficiency, and enough headroom to run AI processing tasks — like that upscaling feature — without throttling.
The rest of the leaked spec sheet:
- RAM: 3GB
- Storage: 32GB
- Wireless: Wi-Fi 6 (802.11ax)
- Thread radio: Yes — Matter smart home border router capability
- AI Super Resolution: Yes — upscales standard-definition and 1080p content toward 4K quality
- Dolby Vision: Supported
- Dolby Atmos: Supported
- OS: Google TV
Why the Empty Walmart Shelves Matter
Retailers don’t let inventory evaporate by accident. The pattern of original Onn 4K Pro units disappearing from major US metro Walmart locations is a standard end-of-life stock drawdown — clear the shelves before the replacement hits. The original retailed around $50 (and regularly sold for $35–$43 during Walmart sales). Those units are now scarce and being cleared at whatever price moves them.
V2 Leaked Specs: The Full Breakdown
✓ Pros
- S905X5M (6nm) is a real generational upgrade over the 12nm S905X4 — better efficiency, less heat, more headroom for AI tasks
- Wi-Fi 6 support for faster throughput and better performance in congested wireless environments
- Thread radio makes this a native Matter border router — your TV becomes smart home infrastructure
- AI Super Resolution upscaling for non-4K content — promising on paper, though untested
- Dolby Vision and Dolby Atmos at a budget price point — premium AV formats locked in
- 32GB storage gives you room for a real app library without constant management
- Google TV means full Android sideloading with no Amazon-style restrictions
✕ Cons
- No confirmed launch date or pricing as of March 2026 — purely a leak, not a product announcement
- Barrel AC power adapter (not USB-C) — same annoyance carried over from the original
- AI Super Resolution quality is completely untested — we have no idea if it's actually good or just a checkbox
- Potential regional availability locks — Canadian and some international users got burned on the original
- Recall issues affected some older Onn 4K Pro units — QC improvements are unconfirmed for V2
Why Thread/Matter Support Is Actually Worth Talking About
Most streaming devices are passive endpoints — they receive content and that’s the job. Thread radio changes that relationship entirely.
Matter is the universal smart home protocol backed by Apple, Google, Amazon, and Samsung. It lets devices from different manufacturers talk to each other without a dedicated hub. The Onn 4K Pro V2 would function as a Thread border router, meaning it bridges your Matter-compatible devices (lights, locks, thermostats, sensors) to your home network.
Your streaming box becomes smart home infrastructure. At a price point that will almost certainly land under $60, that’s a feature the $99 Google TV Streamer currently charges a premium to deliver. If you’re building out a Google Home setup, this isn’t a spec-sheet checkbox — it’s genuinely useful hardware consolidation.
How It Stacks Up Against the Competition
Quick comparison before we get into the buy-or-wait question:
| Device | Price | RAM / Storage | Wi-Fi | Sideloading | Standout Feature |
|---|---|---|---|---|---|
| Not Released Onn 4K Pro V2 (Leaked) | TBD | 3GB / 32GB | Wi-Fi 6 | Full | Thread/Matter + AI Upscaling |
| 🏆 Onn 4K Plus | $77 | 3GB / 32GB | Wi-Fi 6 | Full | Same chip, available now |
| Google TV Streamer | $99 | 4GB / 32GB | Wi-Fi 6 | Full | More RAM, regular sales |
| Fire TV Stick 4K | ~$50 | Lower | Wi-Fi 6 | Blocked | Familiar UI, locked ecosystem |
The VPN Question on Google TV
Switching from a Firestick to an Onn device doesn’t mean you can skip the VPN. Google TV runs Android under the hood, which means your ISP can still see your traffic — and if you’re sideloading apps or using IPTV services, that visibility matters.
Get Surfshark VPN — 86% Off
→What to Buy Right Now
If you need a device today, the Onn 4K Plus is the honest recommendation. It runs the same S905X5M chip as the leaked V2, has 3GB RAM and 32GB storage, supports Wi-Fi 6, and runs Google TV with full sideloading. The tradeoffs versus the V2 leaks: no Ethernet port, no USB port, and no Thread radio. If smart home integration isn’t on your list, those omissions won’t matter.
Onn 4K Plus
- Same S905X5M chip as the leaked V2
- 3GB RAM / 32GB storage
- Wi-Fi 6 — same as V2
- Full Google TV with Android sideloading
- Available on Amazon now
The Google TV Streamer at $99 is the other option — it edges up to 4GB RAM and sales regularly bring it close to $80. Worth watching if you want the most polished Google TV experience and aren’t waiting on V2’s smart home features.
Getting Set Up on Google TV (From a Firestick Background)
Coming from a Firestick, the setup process is familiar enough that you won’t be disoriented. The main difference: Google account instead of Amazon account.
How to Set Up an Onn Google TV Device
5 stepsConnect and Power On
Plug the device into an open HDMI port on your TV and connect the power adapter. Switch your TV’s input to the correct HDMI source. The Google TV setup screen should appear automatically.
Pair the Remote
Hold the remote close to the device and press the back and home buttons together when prompted. Bluetooth pairing completes in a few seconds — the remote will vibrate to confirm.
Connect to Wi-Fi
Select your network from the list and enter your password using the on-screen keyboard. With Wi-Fi 6 hardware, connect to your 5GHz band if your router supports it for best performance.
Sign Into Your Google Account
Enter your Google account credentials to unlock the Google Play Store, your purchased apps, and Google Assistant. This is the step that replaces the Amazon account setup on a Firestick.
Enable Sideloading
Go to Settings → Apps → toggle Install apps from unknown sources to ON. This unlocks the ability to install APKs outside the Play Store — the equivalent of Developer Options on a Firestick, and the reason the Onn series is worth choosing over locked-down alternatives.
The Bottom Line: Wait or Buy?
The Onn 4K Pro V2 is real. It’s cleared FCC, the shelves are emptying on the V1, and the spec sheet — if it holds — makes it the most compelling budget Google TV device since the original Onn 4K Pro launched.
The honest answer on timing: we don’t have one. FCC approval doesn’t come with a ship date, and “close” in retail can mean six weeks or six months.
Buy now: The Onn 4K Plus at $77 gets you the same processor with Google TV intact. If you’re migrating off a restricted Firestick or comparing your options across streaming hardware, it’s the right call today.
Wait: If Thread/Matter smart home integration is on your radar — or if you’re just frugal enough to hold out for what’s coming — keep an eye on Walmart’s inventory. The empty shelves are telling you something.
For a broader look at how Onn compares to the full streaming device landscape, including Roku and Chromecast, see our Firestick vs Roku vs Chromecast comparison. And if you’re evaluating the current Fire TV hardware lineup before switching away entirely, the Fire TV Stick 4K vs 4K Max vs Lite breakdown covers what Amazon is still getting right.
If you’re adding live TV to your new Google TV setup, Unify IPTV runs cleanly on Android-based devices and covers hundreds of live channels without the antenna wiring.
Try Unify IPTV on Google TV
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Last updated: March 2026
