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The Roku Express 4K+ costs $39. The Walmart onn 4K Streaming Box costs $19-$29. This is the most budget-friendly comparison in the entire set — two inexpensive streaming devices fighting for the lowest-cost 4K streaming throne. Both do the job. The difference is platform (Roku vs. Google TV) and a $10-$20 price gap.
Quick Comparison
Roku Express 4K+ vs onn 4K Streaming Box 2026
| Feature | Roku Express 4K+Best Budget Neutral Streamer | onn 4K Streaming BoxCheapest 4K Streaming Available |
|---|---|---|
| 4K streaming | HDR10 | HDR10 |
| Dolby Vision | No | No |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Platform | Roku OS (neutral) | Google TV |
| Voice assistant | Roku Voice | Google Assistant |
| Google Cast | No | Yes |
| App catalog | Widest catalog | Android TV apps |
| Private listening | Via Roku app | Via app |
| Price | ~$39 | $19-$29 |
| Buy Now | [VERIFY: ~$39] → | [VERIFY: ~$19-$29] → |
Same Tier, Different Platforms
Both devices share the same Wi-Fi 5 wireless, similar processing power, and HDR10 (no Dolby Vision). At this price tier, video output is essentially equivalent.
Platform is the difference:
Roku Express 4K+: The most neutral streaming platform. No ecosystem pushing, widest app catalog (especially FAST channels like Tubi, Pluto TV, The Roku Channel), and simple setup. Private listening via the Roku app.
onn 4K Streaming Box: Google TV with Google Assistant and native Google Cast. For Android users who cast from YouTube or Google Photos, the onn has a clear advantage over the Express 4K+. Google's content recommendations are more sophisticated than Roku's.
Which Is Better?
This comes down to two questions:
- Do you use an Android phone and cast frequently? → onn wins (Google Cast, $10-$20 less)
- Do you prefer the widest app catalog and platform neutrality? → Roku Express 4K+ wins
For households without a preference, the onn's lower price is hard to ignore — at $19-$29, it's the most accessible 4K streaming device available. The Roku Express 4K+ costs $10-$20 more for the neutral platform and wider FAST channel catalog.
Our Picks
Best Budget Neutral Streamer
Roku Express 4K+
[VERIFY: current price]
Roku's budget 4K streaming stick. Neutral platform, widest streaming catalog, HDR10, and the full Roku experience for $39.
Pros
- Fully neutral Roku platform
- Widest app catalog including FAST channels
- Private listening via Roku app
- 4K HDR10 streaming
- Simple plug-and-play setup
Cons
- $10-$20 more than onn
- No Google Cast for Android users
- No Dolby Vision (same as onn at this tier)
Cheapest 4K Streaming Available
onn 4K Streaming Box
[VERIFY: current price]
Walmart's ultra-budget Google TV box. Google Cast, Google Assistant, all major streaming apps, and 4K HDR10 for $19-$29.
Pros
- $19-$29 — lowest cost 4K streaming device available
- Google Cast native for Android users
- Google TV interface with cross-service recommendations
- Google Assistant voice search
Cons
- $10-$20 less than Roku but narrower app catalog (especially FAST channels)
- Google-centric, not neutral
- Slightly slower performance
Bottom Line
At this budget tier, both devices are genuinely capable. Get Roku Express 4K+ if you value platform neutrality, the widest FAST channel catalog, or prefer Roku's simpler interface. Get onn 4K Streaming Box if you have an Android phone and cast from YouTube/Google Photos, or want to spend as little as possible for functional 4K streaming. Both are excellent value for what they cost.
Also see: Roku Express 4K+ Review , onn 4K Streaming Box Review , and best budget streaming devices .