CAPTAIN Electronic Grip Strength Trainer 10-400 lb
- Tension Supported: Extra-Heavy
- Color: Black
- Unit Count: 1
- Part Number: FBA(GST)-GripTrainer-Black
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A wide-range grip trainer that works as advertised for most buyers, but temper the electronic label since it only counts reps, not resistance.
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ASIN: B0FSRCP3HKCategory: Grip Strengtheners
Overview
An adjustable grip strength trainer with a 10 to 400 lb resistance range, a digital rep counter, and a tungsten steel tip doubling as an emergency glass breaker. A silver wheel sets hand reach and a black knob adjusts spring tension.
Most who kept it liked the adjustability and feel; one received a used, leaking unit with a faulty counter.
- Adjustable 10 to 400 lb resistance range
- Digital counter up to 999 reps
- Dual-layer steel spring construction
- Built-in tungsten steel window-breaker tip
Who it's for
Anyone building grip and forearm strength who wants a single tool spanning beginner through advanced resistance is the target buyer. Those who want the exact resistance number displayed in pounds or kilograms while training will find the dial-by-feel setup limiting.
Pros and cons
- Wide 10 to 400 lb adjustable range
- TPR-covered handles comfortable in the hand
- Digital counter tracks reps up to 999
- Tungsten tip doubles as glass breaker
- No printed instructions included per one reviewer
- Resistance not shown numerically in lbs or kg
- Interlocking grip mechanism can occasionally stick
Performance notes
The black knob compresses a dual-layer steel spring across the 10 to 400 lb range, while the silver wheel resets hand reach for different sizes. The digital piece only tracks rep count up to 999, so gauging actual resistance is by feel rather than a number.
Specifications
| Brand | CAPTAIN |
|---|---|
| Tension Supported | Extra-Heavy |
| Color | Black |
| Unit Count | 1 |
| Part Number | FBA(GST)-GripTrainer-Black |
Frequently asked questions
Does the CAPTAIN grip trainer show the resistance in pounds while adjusting?
No.
What does electronic mean on this grip trainer?
It refers to the digital rep counter, which tracks up to 999 reps. It does not display the resistance level.
Does the CAPTAIN grip trainer include instructions?
One reviewer reported the package arrived with no instructions for adjusting the reach wheel or resistance knob.