Griot's Garage G8 Mini
A mini polisher for spot correction in tight areas, best as a second machine beside a full-size polisher.
Amazon $144.99$144.99
The Griot's Garage G8 Mini is the better dual action car polisher overall, rated 3.3 to 2.7. The Griot's Garage G8 Mini leads on warranty and features. The Griot's Garage G8 Mini costs $14.01 less ($144.99 vs $159).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Porter-Cable 7424XP
A long-running, well-supported polisher with a three-year warranty, though its maker doesn’t publish the orbit size.
Amazon $159$159
Which should you buy?
- Choose the Griot's Garage G8 Mini for warranty (lifetime guarantee against defects vs 3-year warranty) and features (constant-speed electronics vs none of the listed features).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every corded short-throw dual action car polisher; a clear win is highlighted. How we rank explains each one.
| Factor weight | Griot's Garage G8 Mini | Porter-Cable 7424XP |
|---|---|---|
| Overall rating | 3.3/5 | 2.7/5 |
| Correction 30% | 19 8 mm orbit | 0 orbit not published, scored as the smallest |
| Value 25% | 79 $144.99 | 74 $159 |
| Warranty 15% | 100 lifetime guarantee against defects | 50 3-year warranty |
| Power 10% | 43 700 W | 20 4.5 A, about 540 W at 120 V |
| Weight 10% | 50 weight not published (neutral score used) | 62 5.5 lb |
| Features 10% | 30 constant-speed electronics | 0 none of the listed features |
Specifications
| Griot's Garage G8 Mini | Porter-Cable 7424XP | |
|---|---|---|
| Polishing | ||
| Orbit diameter | 8 mm | - |
| Speed range | 2,000-6,400 OPM | 2,500-6,800 OPM |
| Backing plate | 3 in | 6 in |
| Forced rotation | No | No |
| Power | ||
| Power source | Corded | Corded |
| Motor rating | 700 W | 4.5 A |
| Cord | 10 ft, detachable | - |
| Brushless motor | Not listed | Not listed |
| Controls | ||
| Constant-speed electronics | Yes | Not listed |
| Soft start | Not listed | Not listed |
| Lock-on trigger | Not listed | Not listed |
| Build | ||
| Weight | - | 5.5 lb |
| Pads or polish included | No | No |
| Warranty | Lifetime | 3 years |