IObit Smart Defrag comparisons
IObit Smart Defrag is compared head-to-head with Disk SpeedUp, O&O Defrag and UltraDefrag and more: 7 head-to-heads in Disk Defragmentation Software, each with the specs and prices we checked.
IObit Smart Defrag head-to-head
- IObit Smart Defrag vs Disk SpeedUp
- IObit Smart Defrag vs O&O Defrag
- IObit Smart Defrag vs UltraDefrag
- IObit Smart Defrag vs Auslogics Disk Defrag
- IObit Smart Defrag vs UltimateDefrag 6
- IObit Smart Defrag vs Puran Defrag
- IObit Smart Defrag vs WinContig
IObit Smart Defrag vs each of them
| # | Tool | Free plan | Paid from | Drive types | Scheduled optimization | Automatic optimization | Boot-time optimization | Score |
|---|---|---|---|---|---|---|---|---|
| 1 | IObit Smart Defrag | Yes | Both | Yes | Yes | Yes | 9.4 | |
| 2 | Disk SpeedUp | Yes | Free | Both | Yes | Yes | Yes | 9.2 |
| 3 | O&O Defrag | No | $49.95/device one-time | Both | Yes | Yes | Yes | 8.8 |
| 4 | UltraDefrag | No | Both | Yes | Yes | Yes | 8.6 | |
| 5 | Auslogics Disk Defrag | Yes | Hdd | Yes | Yes | Yes | 8.4 | |
| 6 | UltimateDefrag 6 | No | $29.95 one-time | Both | Yes | Yes | Yes | 8.2 |
| 7 | Puran Defrag | Yes | Free | Hdd | Yes | Yes | Yes | 8.0 |
| 8 | WinContig | Yes | Free | Both | Yes | 7.8 |
Compare IObit Smart Defrag with any disk defragmentation software
These are the matchups our editors wrote up. The compare tool pairs IObit Smart Defrag with any other product in Disk Defragmentation Software — and up to four at once — from the same checked specs.
Compare IObit Smart Defrag with any tool side by side →
Every disk defragmentation software head-to-head →
Our full IObit Smart Defrag verdict, pricing and fact sheet →
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Compared by iTechGuides Editors · Editorial team · Updated Oct 2026
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