Main trade-off
Canon CanoScan LiDE 300
Every page needs manual placement and there is no feeder.
Head-to-head
Choose the LiDE 300 for occasional document and photo scans on a flat surface. Choose the LiDE 400 when higher optical sampling or the included upright stand has a real use in your workspace.
Before you choose
Canon's Letter color 300 dpi timings are 10 seconds for the 300 and 8 seconds for the 400. Across 20 pages, that is 40 seconds of rated scanning time. Both still require placing the page, turning it when needed and checking the file.
What this is based on
20 multiplied by 2 seconds equals 40 seconds. This excludes manual handling and uses Canon's specified scan timing method.
Main trade-off
Every page needs manual placement and there is no feeder.
Main trade-off
Pages and backs are positioned by hand.


Compare ordinary paperwork with detailed photo scanning and upright use. The LiDE 400 adds resolution and a stand, but still needs manual page handling.
Choose the LiDE 300 for occasional document and photo scans on a flat surface. Choose the LiDE 400 when higher optical sampling or the included upright stand has a real use in your workspace.
Winner by situation
Both keep supported originals out of rollers.
Every page is positioned by hand.
The 400 includes an upright stand, with mode restrictions.
Only the 400 offers 4800 dpi optical sampling.
What matters in practice
Canon's Letter color 300 dpi timings are 10 seconds for the 300 and 8 seconds for the 400. Across 20 pages, that is 40 seconds of rated scanning time. Both still require placing the page, turning it when needed and checking the file.
20 multiplied by 2 seconds equals 40 seconds. This excludes manual handling and uses Canon's specified scan timing method.
The LiDE 400's included stand can reduce the space used for supported flat originals, but Canon says Auto Scan is unavailable in upright mode. A buyer wanting both minimal desk use and automatic detection must choose settings through the supported upright workflow instead.
Books and bulky originals need the appropriate flat placement. A stand is not evidence that every original can scan vertically.
The 400 doubles the maximum optical sampling from 2400 to 4800 dpi. Ordinary paperwork scanned at 300 dpi does not use that difference. Choose the 400 for a real detailed-original or enlargement task, then check the supported scan area and resulting file size at high resolution.
Both use an 8.5 by 11.7-inch flatbed. Canon notes that raising resolution can limit the available scan area.

Canon, CanoScan LiDE 300
Scan a book page, photograph or delicate document on a USB-powered flatbed.

Canon, CanoScan LiDE 400
Place a photo or a book page on the glass when rollers would be the wrong way to handle it.
Meaningful differences
| What changes | Canon CanoScan LiDE 300 | Canon CanoScan LiDE 400 | Why it matters |
|---|---|---|---|
| Optical resolution | 2400 dpi | 4800 dpi | More sampling can help detailed originals but does not automatically improve ordinary 300 dpi documents. |
| Letter color at 300 dpi | About 10 seconds | About 8 seconds | The difference is small beside manual page positioning. |
| Upright stand | Not included | Included | The 400 offers another setup for suitable originals. |
| Buttons | Four EZ buttons | Five EZ buttons | The 400 adds a separate PDF finish control. |
| Page handling | Manual flatbed | Manual flatbed | Neither scans a stack or reverses a sheet for you. |
What you give up
Recommendation switch
Choose Canon CanoScan LiDE 400. Those are concrete additions beyond a small speed difference.
Choose Canon CanoScan LiDE 300. The 300 already supports that workflow.
Choose neither. Choose a duplex feeder for loose documents.
What matters in practice
What the facts say
Useful conclusions from the current document scanners comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Canon CanoScan LiDE 300 |
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| Canon CanoScan LiDE 400 |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Routine documents and occasional photos are the main job
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You need the higher optical sampling for suitable detailed originals
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