Griot's Garage G9
A forgiving, well-supported first polisher with a lifetime guarantee, for owners new to machine polishing.
Amazon $179.99$179.99
The Griot's Garage G9 is the better dual action car polisher overall, rated 3.5 to 2.8. The Griot's Garage G9 leads on warranty and features. The Maxshine M8S V2 wins on value. The Maxshine M8S V2 costs $26 less ($153.99 vs $179.99).
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.
Maxshine M8S V2
An inexpensive short-throw polisher from a detailing brand, for beginners learning to polish safely.
Amazon $153.99$153.99
Which should you buy?
- Choose the Griot's Garage G9 for warranty (lifetime guarantee against defects vs 1-year warranty) and features (constant-speed electronics vs none of the listed features).
- Choose the Maxshine M8S V2 for value ($153.99 vs $179.99).
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 G9 | Maxshine M8S V2 |
|---|---|---|
| Overall rating | 3.5/5 | 2.8/5 |
| Correction 30% | 25 9 mm orbit | 19 8 mm orbit |
| Value 25% | 67 $179.99 | 76 $153.99 |
| Warranty 15% | 100 lifetime guarantee against defects | 0 1-year warranty |
| Power 10% | 86 1,000 W | 86 1,000 W |
| Weight 10% | 50 weight not published (neutral score used) | 50 weight not published (neutral score used) |
| Features 10% | 30 constant-speed electronics | 0 none of the listed features |
Specifications
| Griot's Garage G9 | Maxshine M8S V2 | |
|---|---|---|
| Polishing | ||
| Orbit diameter | 9 mm | 8 mm |
| Speed range | 2,000-6,400 OPM | 2,200-6,500 OPM |
| Backing plate | 6 in | 5 in |
| Forced rotation | No | No |
| Power | ||
| Power source | Corded | Corded |
| Motor rating | 1,000 W | 1,000 W |
| 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 | ||
| Pads or polish included | No | No |
| Warranty | Lifetime | 1 year |