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Quick answer: Both are wireless color inkjet all-in-ones with a document feeder, auto two-sided printing and a 2.7-inch touchscreen. The 9125 listing adds fax, auto two-sided scanning and a 250-sheet tray, while the 8125 lists a 225-sheet tray and no fax.
This comparison is built from the product listings and manufacturer information on Amazon, not our own testing. Confirm details on the product pages before you buy.
Last updated: October 30, 2026.
At a Glance
| Feature | HP OfficeJet Pro 9125 | HP OfficeJet Pro 8125 |
|---|---|---|
| Type | Color inkjet all-in-one | Color inkjet all-in-one |
| Fax | Yes | Not listed |
| Auto two-sided printing | Yes | Yes |
| Auto two-sided scanning | Yes, per the listing | Not mentioned |
| Document feeder | Yes | Yes |
| Input tray | 250 sheets | 225 sheets |
| Touchscreen | 2.7-inch | 2.7-inch |
| Instant Ink trial | 3 months | 3 months |
Key Differences
Fax
Only the 9125 listing includes fax.
Two-sided scanning
The 9125 lists auto two-sided printing and scanning. The 8125 listing mentions two-sided printing only.
Tray size
250 sheets against 225 sheets. A small difference for most users.
Ink policy
Both are HP printers, so read the cartridge policy before using third-party ink.
Which Should You Choose?
Choose the HP OfficeJet Pro 9125 if
you need fax or want two-sided scanning for a busy home office.
Choose the HP OfficeJet Pro 8125 if
you want a feeder and duplex printing at a lower tier and do not need fax.
Frequently Asked Questions
Do both use the same ink?
Check the cartridge number on each product page before buying supplies.
Is the 9125 faster?
Compare the rated speeds on the product pages. Real speed depends on the job.
Can I use third-party ink?
HP printers may restrict it. Read the policy.
Bottom Line
Choose the 9125 for fax and two-sided scanning, the 8125 if you do not need them. See best HP OfficeJet Pro printers.
