Streaming Devices / onn. 4K Pro (2026) vs Fire TV Cube (3rd Gen)
onn. 4K Pro (2026) vs Fire TV Cube (3rd Gen)
onn. 4K Pro (2026)
The price-to-performance leader — but Walmart-exclusive, so not buyable on Amazon.
Wins overall by 0.5 points
Quick Verdict
The onn. 4K Pro (2026) takes this by a clear 0.5 points. The price-to-performance leader — but Walmart-exclusive, so not buyable on Amazon. The Fire TV Cube (3rd Gen) only makes sense if it wins on a category you care about more than the total.
The onn. 4K Pro (2026) and Fire TV Cube (3rd Gen) are both closely matched streaming Device models, and the onn. 4K Pro (2026) is $80 cheaper than the Fire TV Cube (3rd Gen) ($59.98 vs $139.99). On Value, the onn. 4K Pro (2026) leads (9.5 vs 5.5/10) — features and performance relative to price. On Connectivity, the Fire TV Cube (3rd Gen) leads (9.5 vs 7.0/10) — Wi-Fi standard, ethernet, Bluetooth, and expansion ports. On Platform & Apps, the onn. 4K Pro (2026) leads (8.5 vs 6.5/10) — operating system, app catalogue, and how advertising-led the interface is. Overall, the onn. 4K Pro (2026) scores 8.3/10 across our 8 scoring categories versus 7.8/10 for the Fire TV Cube (3rd Gen). Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | onn. 4K Pro (2026) | Fire TV Cube (3rd Gen) |
|---|---|---|
| Price | $59.98 | $139.99 |
| Release Year | 2026 | 2022 |
| Max Resolution | 4K UHD (3840x2160); Walmart does not publish a frame-rate ceiling for this model | 4K (3840x2160) at 60fps |
| HDR Formats | Dolby Vision confirmed; HDR10 and HLG not separately confirmed for this SKU | Dolby Vision, HDR10, HDR10+, HLG |
| Dolby Vision | Yes | Yes |
| Dolby Atmos | Yes | Yes |
| Processor | Amlogic S905X5M (reported; Walmart does not publish the chipset) | Amlogic POP1-G — octa-core, 4x Cortex-A73 at 2.2GHz + 4x Cortex-A53 at 2.0GHz |
| RAM (GB) | 3✓ | 2 |
| Storage (GB) | 32✓ | 16 |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6E |
| Ethernet | Built in, but capped at 100 Mbps | Built in (10/100) |
| Bluetooth | Present; version not published | 5.0 + BLE |
| Operating System | Google TV with Gemini | Fire OS 7 (Android 9) |
| Remote | Backlit buttons, Find My Remote, customizable star button, hands-free voice with mic mute | Alexa Voice Remote Enhanced; hands-free far-field voice on the device itself; no backlight; no remote finder |
| Warranty | 12 months | 12 months |
| Colors | Black | Black |
Category Scores
Speed & Performance
The Fire TV Cube (3rd Gen) leads clearly here, 9.0 against 8.0 — a 1.0-point margin on processor, RAM, and how quickly menus and apps respond. If that is what you are buying for, the onn. 4K Pro (2026) does not close the gap elsewhere.
Video Quality
The Fire TV Cube (3rd Gen) leads clearly here, 8.5 against 8.0 — a 0.5-point margin on maximum resolution and which HDR formats are supported. If that is what you are buying for, the onn. 4K Pro (2026) does not close the gap elsewhere.
Audio Support
The Fire TV Cube (3rd Gen) leads clearly here, 8.5 against 8.0 — a 0.5-point margin on dolby Atmos and DTS handling, and whether audio is decoded or only passed through. If that is what you are buying for, the onn. 4K Pro (2026) does not close the gap elsewhere.
Platform & Apps
The onn. 4K Pro (2026) leads clearly here, 8.5 against 6.5 — a 2.0-point margin on operating system, app catalogue, and how advertising-led the interface is. If that is what you are buying for, the Fire TV Cube (3rd Gen) does not close the gap elsewhere.
Connectivity
The Fire TV Cube (3rd Gen) leads clearly here, 9.5 against 7.0 — a 2.5-point margin on Wi-Fi standard, ethernet, Bluetooth, and expansion ports. If that is what you are buying for, the onn. 4K Pro (2026) does not close the gap elsewhere.
Remote
The onn. 4K Pro (2026) leads clearly here, 8.5 against 6.5 — a 2.0-point margin on voice control, backlighting, rechargeability, and remote-finder features. If that is what you are buying for, the Fire TV Cube (3rd Gen) does not close the gap elsewhere.
Smart Home
The onn. 4K Pro (2026) and Fire TV Cube (3rd Gen) are level here, at 8.5/10 each. matter, Thread, and built-in voice assistant capability is not what separates these two — look to the categories where the scores diverge.
Value
The onn. 4K Pro (2026) leads clearly here, 9.5 against 5.5 — a 4.0-point margin on features and performance relative to price. If that is what you are buying for, the Fire TV Cube (3rd Gen) does not close the gap elsewhere.
Best For
Choose the onn. 4K Pro (2026) if…
- • Value matters most to you — the onn. 4K Pro (2026) scores 9.5/10 here (features and performance relative to price).
- • Platform & Apps matters most to you — the onn. 4K Pro (2026) scores 8.5/10 here (operating system, app catalogue, and how advertising-led the interface is).
- • Remote matters most to you — the onn. 4K Pro (2026) scores 8.5/10 here (voice control, backlighting, rechargeability, and remote-finder features).
- • You want to spend less — it's $80 cheaper.
- • Your main use case is 4k-hdr or budget.
Choose the Fire TV Cube (3rd Gen) if…
- • Connectivity matters most to you — the Fire TV Cube (3rd Gen) scores 9.5/10 here (Wi-Fi standard, ethernet, Bluetooth, and expansion ports).
- • Speed & Performance matters most to you — the Fire TV Cube (3rd Gen) scores 9.0/10 here (processor, RAM, and how quickly menus and apps respond).
- • Your main use case is gaming.
Pros & Cons
onn. 4K Pro (2026)
Pros
- +Flagship-tier performance and features for $59.98
- +Backlit remote with Find My Remote, which costs far more elsewhere
- +Gemini assistant and Matter-over-Thread support
- +3GB of RAM and 32GB of storage undercut every rival at the price
Cons
- −Walmart-exclusive — not sold on Amazon by Walmart or onn., so there is no authorised Amazon listing to buy from
- −Ethernet is capped at 100 Mbps, not gigabit
- −USB port downgraded to 2.0 from the previous generation's USB 3.0
- −Chronic stock shortages, with resellers marking it up substantially
- −Walmart does not publish frame-rate, Bluetooth version or full HDR format details for this model
Fire TV Cube (3rd Gen)
Pros
- +By far the fastest Fire TV device, roughly twice the 4K Max
- +Built-in ethernet and an HDMI input are unique in the Fire TV line
- +Hands-free Alexa without needing a separate Echo
- +Super Resolution Upscaling genuinely helps older HD content
Cons
- −No hardware refresh since 2022 — the oldest device in the Fire TV line
- −Still on Fire OS 7 (Android 9), while the sticks have moved to Fire OS 8
- −Ethernet is 10/100, not gigabit
- −Roughly double the price of the 4K Max for the same Dolby Vision and Atmos support
- −Reviewers report it sometimes fails to switch into Dolby Vision automatically
Shop by Need
FAQs
Is the onn. 4K Pro (2026) or Fire TV Cube (3rd Gen) better overall?+
Based on our 8-category scoring, the onn. 4K Pro (2026) comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Value, the onn. 4K Pro (2026) or the Fire TV Cube (3rd Gen)?+
The onn. 4K Pro (2026) scores higher on Value (9.5/10 vs 5.5/10) — features and performance relative to price.
Which is better for Connectivity, the onn. 4K Pro (2026) or the Fire TV Cube (3rd Gen)?+
The Fire TV Cube (3rd Gen) scores higher on Connectivity (9.5/10 vs 7.0/10) — Wi-Fi standard, ethernet, Bluetooth, and expansion ports.
Which is better for Platform & Apps, the onn. 4K Pro (2026) or the Fire TV Cube (3rd Gen)?+
The onn. 4K Pro (2026) scores higher on Platform & Apps (8.5/10 vs 6.5/10) — operating system, app catalogue, and how advertising-led the interface is.
Which is better for Remote, the onn. 4K Pro (2026) or the Fire TV Cube (3rd Gen)?+
The onn. 4K Pro (2026) scores higher on Remote (8.5/10 vs 6.5/10) — voice control, backlighting, rechargeability, and remote-finder features.
Is the onn. 4K Pro (2026) worth the price difference over the Fire TV Cube (3rd Gen)?+
The onn. 4K Pro (2026) is the cheaper option at $59.98 versus $139.99. Whether the pricier model is "worth it" depends on how much you value its lead in Value.
Which is better suited to my use case?+
The onn. 4K Pro (2026) is the better fit if you mainly care about 4k-hdr or budget. The Fire TV Cube (3rd Gen) is the better fit for gaming.
What's the warranty on the onn. 4K Pro (2026) vs the Fire TV Cube (3rd Gen)?+
The onn. 4K Pro (2026) ships with a 12-month warranty; the Fire TV Cube (3rd Gen) ships with a 12-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Fire TV Stick 4K Max (2nd Gen) — $59.99
Premium Option
Fire TV Stick 4K Max (2nd Gen) — $59.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.