Anonymous aggregate viewport measurements from ScreenSize.net browser sessions, with sample size, quality exclusions and methodology shown alongside the results.
Aggregate sessions2026-06 to 2026-08Quality rules v1
Status
Reporting live data
Collection period
2026-06 to 2026-08
Key findings
These observations describe qualified ScreenSize.net sessions during the reporting period. They are not global device or browser market-share estimates.
01
The most common desktop viewport is 1920 × 920 CSS pixels, representing 11.7% of 832 qualified samples.
02
The most common mobile viewport width is 400px, representing 50.8% of 130 qualified samples.
03
The most common device pixel ratio bucket is 1.00×, representing 57.7% of 962 qualified samples.
Coverage
Each environment is evaluated independently. Rankings stay hidden until that environment reaches the minimum display sample.
| Environment | Qualified samples | Publication status |
|---|---|---|
| Desktop | 832 | Distribution available |
| Mobile | 130 | Distribution available |
| Tablet | 0 | Insufficient sample (minimum 50) |
Legacy tablet samples are excluded because the first classifier could mistake touch-enabled desktop computers for tablets.
Clear dimension anomalies are excluded from rankings but remain in aggregate storage for auditing.
Desktop
832 qualified samples.
1920 px22.8% · 190
1280 px10.1% · 84
1520 px7.8% · 65
1360 px5% · 42
1480 px4.9% · 41
1440 px4.7% · 39
800 px4.1% · 34
1400 px3.8% · 32
1920 × 92011.7% · 97
1920 × 10804.4% · 37
800 × 6004.1% · 34
1920 × 9603.5% · 29
1280 × 8002.8% · 23
1280 × 7202.4% · 20
1520 × 7002.2% · 18
2560 × 12802.2% · 18
Mobile
130 qualified samples.
400 px50.8% · 66
420 px20% · 26
380 px13.8% · 18
440 px4.6% · 6
360 px3.8% · 5
600 px3.1% · 4
800 px2.3% · 3
460 px0.8% · 1
400 × 66023.1% · 30
400 × 7006.9% · 9
420 × 8006.2% · 8
380 × 6205.4% · 7
400 × 7205.4% · 7
420 × 7203.1% · 4
420 × 7803.1% · 4
400 × 5402.3% · 3
Tablet
The tablet distribution remains hidden until it reaches 50 qualified samples.
Density
Browser mix
Monthly coverage
| Month | Environment | Samples |
|---|---|---|
| 2026-06 | Desktop | 61 |
| 2026-06 | Mobile | 2 |
| 2026-07 | Desktop | 94 |
| 2026-07 | Mobile | 7 |
| 2026-08 | Desktop | 677 |
| 2026-08 | Mobile | 121 |
Methodology
The report describes this site's measured browser sessions, not global device or browser market share.
A browser tab contributes at most one sample during its session. Measurements are rounded into monthly aggregate buckets. No IP addresses, user IDs, precise timestamps or full user-agent strings are stored. Global Privacy Control and Do Not Track signals are honored.
Viewports wider than 6,000 CSS pixels or taller than 4,000 are excluded from published distributions. Historical DPR values are normalized to 0.05 steps. Device class is inferred locally and remains an approximation; legacy tablet classifications are excluded.
Audit details