Luxilon 4G String Review

Luxilon 4G String Review – Control, Durability, and a Unique Feel

I’ve had some extended court time with Luxilon 4G, and it’s time to break down what this string brings to the table. This is not your typical polyester—it’s a bit of a unicorn in the Luxilon lineup. Known for its use by pros like Stefanos Tsitsipas, Alex de Minaur and Grigor Dimitrov (among many others), 4G has built a reputation for maximum control, tension maintenance, and durability, but it’s definitely not for everyone.

First Impressions

Stringing 4G is a bit of a workout—it’s quite stiff out of the box and has a wire-like feel when you’re installing it. Not the friendliest to string, but that stiffness plays into its performance characteristics on court. I tested it in a few different racquets, including the Wilson Blade 98, the Yonex VCORE 95, and the HEAD Radical Pro. All setups were strung at around 50 lbs (22.5 kg).

On-Court Performance

Control is where 4G shines. It gives you that locked-in feel that aggressive hitters will really appreciate. If you like taking big cuts at the ball and want to trust your string bed, this one delivers. There’s minimal string movement, and the response is very predictable, even on off-center shots.

The spin potential is decent—not as sharp as something like ALU Power Rough or RPM Blast, but with the right technique and racquet, it’s more than sufficient. Where it really sets itself apart is tension maintenance. Unlike many polys that go dead within a few hours, 4G holds tension exceptionally well, even after 10–15 hours of play. This makes it a favorite on tour, where players are looking for consistency across practice and match play.

That said, comfort is not its strong suit. 4G is a stiff string, and if you’re sensitive to arm issues or prefer a plush response, you might want to look elsewhere or hybrid it with a softer string. The feedback is firm and a bit muted—it doesn’t give you that pocketing sensation you get from something livelier.

Best For

Luxilon 4G is best suited for:

• Advanced players who generate their own power
• Players who value control and durability over feel and power
• String breakers looking for a longer-lasting poly
• Those who play frequently and need a reliable, consistent response from their string bed

Final Thoughts

Luxilon 4G is not the most exciting string in terms of feel or spin, but it’s a workhorse—reliable, consistent, and built for control. If you’re looking for a string that stays true over time and lets you swing out with confidence, it’s definitely worth a try. Just know going in: it’s more about function than flair. Also, it comes at a premium price, but it does offer premium playability.

Have you tried Luxilon 4G? What do you think about this string? Please comment below.