Five random orbital sanders compared on pad size, orbit diameter, OPM, and dust collection, with real Amazon listings and honest notes on where two candidates had to be swapped for models actually sold in the US.
If you only buy one, the Makita BO5041K is the safest all-around pick: independent reviews consistently praise its swirl-free finish and control, and it holds a strong track record on Amazon despite being an older design. The DeWalt DWE6423K is a close, slightly cheaper alternative with nearly identical specs and better vacuum-adapter availability. Buyers who already own Ryobi ONE+ batteries get real value from the cordless P411 despite its smaller aggressive-orbit tradeoff, and anyone doing large flat panels or automotive finish work should look past all four 5-inch corded/cordless options toward the 6-inch, 5mm-orbit Mirka DEROS for faster stock removal per pass. None of these is a bad choice; they split cleanly by what you're sanding and whether you want a cord.
Makita
Why we like it
Bosch
Why we like it
Ryobi
Why we like it
Mirka
Why we like itDeWalt
Why we like it| Product | Rank | Brand | Best For | Score |
|---|---|---|---|---|
| Makita BO5041K 5" Random Orbit Sander | #1 | Makita | Best Finish Quality | 9.8 |
| BOSCH ROS20VSC Palm Sander, Variable Spee... | #2 | Bosch | Best Dust Control | 9.6 |
| Ryobi P411 ONE+ 18-Volt 5 in | #3 | Ryobi | Best Cordless / Best for Existing ONE+ Owners | 9.4 |
| Mirka DEROS 650X CV - 6" Hook & Loop, 5.0... | #4 | Mirka | Best 6-Inch / Best for Professional Finish Work | 9.3 |
| DEWALT Orbital Sander Kit, 5-Inch, Variab... | #5 | DeWalt | Best Value Corded Pick | 9.1 |
Buyer checklist
Every model here was checked against its manufacturer's own product page or spec sheet for pad size, orbit diameter, OPM/RPM, and dust-collection method, then cross-checked against an actual indexed Amazon.com listing to confirm a real ASIN exists. Two of the originally drafted candidates did not hold up: Bosch's GEX 125-1 AE is a European/UK-market model number with no standard US Amazon.com listing, and Festool's US Amazon presence for the ETS 125 REQ line could not be confirmed as currently stable (community reports and repeated server errors on Festool-related Amazon pages suggest an inconsistent listing history), so both were substituted with real, verifiably-sold alternatives and that substitution is disclosed on each product page.
Orbit diameter is how far the sanding pad swings off-center on each rotation, and it's a real tradeoff, not just a spec-sheet number. A larger orbit (around 5mm, like the Mirka DEROS here) removes material faster per pass but leaves a coarser, more visible scratch pattern; a smaller orbit (roughly 2.4-2.8mm, like the DeWalt, Bosch, Makita, and Ryobi models here) sands more slowly but leaves a smoother, less noticeable finish. Neither number is 'better' in isolation, it depends on whether you're stripping a finish or doing final prep before stain.
For dust extraction to work, yes. Most of these sanders use an 8-hole hook-and-loop pattern, but hole count and spacing aren't universal across brands, and using a mismatched disc can block ports and cut suction noticeably. Some systems (like Mirka's net-abrasive Abranet discs) get around this by using a mesh that vents dust through the whole surface rather than fixed holes, which is one reason premium sanders sometimes use different consumables than mainstream corded/cordless models.
No. A 6-inch pad covers more surface area per pass, which is genuinely faster on large flat panels, doors, and tabletops, but it's heavier to control one-handed, tires your arm faster on vertical or overhead work, and the sander built around it (like the Mirka here) is usually pricier and often lacks a self-contained dust bag. A 5-inch pad remains the more practical default for general household and detail sanding, which is why four of the five picks in this guide are 5-inch models.