Panasonic ER-GB42 Cordless Beard Trimmer
- 19 length settings on a precision dial
- 45-degree hypoallergenic blades
- Up to 50 minutes cordless use
- Waterproof, 100% washable, wet or dry
- Comb attachment lifts flattened hairs
- Replacement blade WER9606P
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A simple, washable cordless beard trimmer with a dial for quick length changes, suited to stubble and short beards. Runtime is moderate and no maximum length is given.
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ASIN: B075LQYFNBModel: ER-GB42Category: Beard & Mustache Trimmers
Overview
Panasonic built this cordless beard trimmer around a precision dial that sets length without swapping combs. Sharp angled blades cut cleanly, the comb attachment lifts flattened hairs, and the waterproof body rinses clean or goes in the shower.
Dialing a length and rinsing the head under the tap makes daily beard upkeep quick. Runtime is modest, and the cutting length range is not given in millimeters.
Who it's for
Daily stubble and short beard maintenance, in or out of the shower. Long beards, and anyone needing lengthy cordless sessions, should look at higher-capacity trimmers.
Pros and cons
- Dial adjusts length quickly
- Fully washable and waterproof
- Sharp angled blades
- Comfortable rubberized grip
- Length range in mm not listed
- Moderate runtime per charge
Performance notes
The angled blade edge cuts hair cleanly instead of pulling, while the comb attachment stands hairs up so the dial length is cut evenly. Rinsing under water after each use helps the blades stay clean.
Specifications
| Brand | Panasonic |
|---|---|
| Model | ER-GB42 |
| Dimensions & fit | |
| Length settings | 19 |
| Power & efficiency | |
| Power Source | Rechargeable, AC wall adaptor |
| Battery Average Life | Up to 50 minutes |
| Construction & materials | |
| Blade Material | Hypoallergenic, 45-degree blades |
| Color | Black |
| Handle Material | Rubberized grip |
| Included components | |
| Included Components | Trimmer, comb attachment |
| Other details | |
| Is Waterproof | Waterproof, 100% washable |
| Replacement part | WER9606P blade |
Frequently asked questions
How do I clean the Panasonic ER-GB42 trimmer?
It is 100% washable, so rinse the head under water after trimming. Replace the blade with the WER9606P when it dulls.
What is the comb attachment on the Panasonic ER-GB42 for?
It raises flattened hairs so they are cut cleanly at the dial length.