Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | ByteDance - Pico 4 Ultra | Varjo - XR-4 |
|---|---|---|
| Field of view | 105 ° | 120 ° |
| Standalone | true | false |
Between the Pico 4 Ultra and XR-4, the Pico 4 Ultra comes out ahead in standalone, while the XR-4 wins on field of view. Overall, the Pico 4 Ultra scores 70.6 and the XR-4 scores 69.7 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (70.6 vs 69.7). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Pico 4 Ultra if you care most about standalone. The biggest gaps in its favor are standalone. The single most decisive one: Standalone: true (vs false).
Pick the XR-4 if you care most about field of view. Its strongest claims are field of view. The single most decisive one: Field of view — 14.29% more. 120 ° vs 105 °.
Both ship with comparable refresh rate, eye tracking, color passthrough, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: ByteDance - Pico 4 Ultra or Varjo - XR-4?
ByteDance - Pico 4 Ultra leads the current Mars Score by 0.9 points.The more useful decision is the trade-off behind that result: compare field of view, standalone against the way you will actually use the product.
Choose ByteDance - Pico 4 Ultra if…
ByteDance - Pico 4 Ultra has the measurable edge on is standalone.
Choose Varjo - XR-4 if…
Varjo - XR-4 has the measurable edge on fov deg.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why ByteDance - Pico 4 Ultra wins
- ▲Standalone: true (vs false).
Why Varjo - XR-4 wins
- ▲Field of view — 14.29% more. 120 ° vs 105 °.
Spec comparison
Display
| Spec | ByteDance - Pico 4 Ultra | Varjo - XR-4 |
|---|---|---|
| Resolution per eye | 2160x2160 | 3840x3744 |
| Refresh rateⓘ | 90 Hz | 90 Hz |
| Field of view | 105 ° | 120 °lead |
| Panelⓘ | LCD | Micro-OLEDlead |
Tracking & Audio
| Spec | ByteDance - Pico 4 Ultra | Varjo - XR-4 |
|---|---|---|
| Inside-out tracking | true | true |
| Eye tracking | true | true |
| Face tracking | truelead | false |
| Color passthrough | true | true |
Compute
| Spec | ByteDance - Pico 4 Ultra | Varjo - XR-4 |
|---|---|---|
| Standalone | truelead | false |
| Battery | 2.5 hlead | 0 h |