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The Roku Ultra costs $99. The Walmart onn 4K Streaming Box costs $19-$29. Different platforms, different hardware tiers, different target buyers — but both deliver functional 4K streaming. The $70-$80 gap deserves a clear breakdown.
Quick Comparison
Roku Ultra vs onn 4K Streaming Box 2026
| Feature | Roku UltraBest Neutral Premium Device | onn 4K Streaming BoxBest Ultra-Budget Google TV |
|---|---|---|
| 4K HDR | Dolby Vision + HDR10 | HDR10 only |
| Dolby Atmos | Yes | No |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Ethernet | Yes | No |
| Remote headphone jack | Yes | No |
| Lost remote finder | Yes | No |
| Voice assistant | Roku Voice | Google Assistant |
| Platform | Roku OS (neutral) | Google TV |
| App catalog | Widest selection | Android TV apps |
| Price | ~$99 | $19-$29 |
| Buy Now | [VERIFY: ~$99] → | [VERIFY: ~$19-$29] → |
Platform Difference: Roku vs. Google TV
The Roku Ultra runs Roku OS — the most neutral streaming platform available. No ecosystem bias, widest app catalog, and no service gets algorithmic preference. The interface promotes The Roku Channel (free) at the same level as Netflix.
The onn runs Google TV — Android TV with Google's content layer on top. Google Assistant provides solid voice search. Content recommendations aggregate across connected services. For Android users who cast from their phones, Google Cast works natively.
Both platforms are functional. Roku wins on neutrality and app breadth; Google TV wins on Google ecosystem integration.
Hardware Differences
The Roku Ultra's most meaningful hardware advantages over the onn box:
- Dolby Vision — the Ultra supports the superior HDR format; onn is HDR10 only
- Dolby Atmos — the Ultra passes through Atmos to compatible soundbars; onn does not
- Ethernet — the Ultra has a wired port; onn requires Wi-Fi only
- Remote headphone jack — private listening from the remote itself
- Wi-Fi 6 — faster wireless on modern routers
The onn's Case at $20
For $19-$29, the onn delivers streaming functionality that genuinely works. All major apps, Google TV interface, Google Assistant voice search, and 4K HDR10. For secondary TVs, guest rooms, or situations where the budget is truly constrained, the onn is remarkable value.
Our Picks
Best Neutral Premium Device
Roku Ultra
[VERIFY: current price]
Roku's flagship. Dolby Vision, Ethernet, Wi-Fi 6, remote headphone jack, and the most neutral streaming platform with the widest app catalog.
Pros
- Dolby Vision + Dolby Atmos
- Ethernet standard
- Remote headphone jack
- Widest app catalog
- Fully neutral Roku platform
Cons
- $99 — $70-$80 more than onn
- Roku Voice less capable than Google Assistant
Best Ultra-Budget Google TV
onn 4K Streaming Box
[VERIFY: current price]
Walmart's Google TV budget device. Google Assistant, Google Cast, all major streaming apps, and 4K HDR10 for under $30.
Pros
- $19-$29 — lowest-cost 4K streaming
- Google Assistant voice search
- Google Cast for Android users
- Google TV content recommendations
- All major streaming apps
Cons
- No Dolby Vision
- No Dolby Atmos
- No Ethernet
- No remote headphone jack
- Slower processor
Bottom Line
Buy Roku Ultra for a primary TV where Dolby Vision, Ethernet stability, private listening, and platform neutrality matter. The $99 investment is justified for a living room setup.
Buy onn 4K Streaming Box for secondary TVs, kids' rooms, travel setups, or any situation where $20 streaming is the goal. It punches above its price for basic streaming needs.
Also see: Roku Ultra Review , onn 4K Streaming Box Review , and Roku Ultra vs Chromecast with Google TV .