
Luxilon 4G is one of the most technically advanced strings on the market — built for precision, durability, and tension retention. Known for its use by professional players, it’s designed to deliver maximum control and consistent performance over time. It’s a firm, low-powered poly ideal for advanced hitters who value precision and long-lasting playability over raw comfort or explosiveness.
Quick verdict
Luxilon 4G remains a benchmark control string for heavy hitters and competitive players. It’s firm and precise, offering incredible tension stability that few others can match. However, it’s not the most forgiving string — best suited for strong players with fast, confident swings who generate their own power.
What the numbers and lab tests say
Luxilon 4G – Based on independent test data:
| Attribute | Score | Summary |
|---|---|---|
| Power | 80% | Controlled power output — excellent for big swingers who prefer a measured response. |
| Resilience Peak | 70% | Slightly below average rebound, emphasizing directional control. |
| Elasticity | 50% | Minimal stretch means ultimate precision but reduced comfort. |
| Spin | 90% | Strong spin potential thanks to a slick surface and snapback response. |
| Control | 100% | Absolute standout feature — consistent and surgical control across all strokes. |
| Tension Holding | 100% | Industry-leading stability — retains tension longer than nearly any other poly. |
| Stability | 85% | Maintains stringbed integrity through long, high-intensity sessions. |
| Comfort | 55% | On the firm side — manageable but not ideal for those with arm issues. |
👉 In short: Luxilon 4G is built for control and consistency. Every stat reinforces that it’s a pro-level poly meant for disciplined, powerful players.
How it plays (feel, spin, power, control)
In play, Luxilon 4G feels crisp, stable, and laser-precise. It gives you the confidence to swing out without worrying about the ball flying long. Spin generation is strong — though not as extreme as textured strings like ALU Power Spin — but the consistency from shot to shot is unmatched.
Volleys feel solid and predictable, while serves benefit from the low launch angle and high feedback. However, off-center hits can feel harsh, especially in stiff racquets.
Durability & tension maintenance

This is where 4G shines brightest. Its tension holding score of 100% isn’t marketing hype — it’s backed up by lab data and player testing. Unlike many polys that go dead after 8–10 hours, 4G keeps its feel and control far longer. That makes it a smart choice for tournament players who demand reliability over weeks of heavy use.
See my guide here on choosing the right tennis string tension.
Who it suits
Best For:
- Advanced and competitive players with fast, confident swings
- Big hitters who prioritize control, consistency, and tension stability over comfort
- Players using control-oriented frames (Blade 98, Prestige, VCORE Pro) who want a firmer, lower-launch response
- Heavy practice/tournament schedules where strings must hold playability for longer
Not For:
- Beginners or improving intermediates seeking easy power and forgiveness
- Anyone with arm/shoulder sensitivity who prefers a softer feel
- Players who like a plush, pocketing response (multifilament or soft poly is a better fit)
- Very open-pattern, high-power frames unless paired at lower tensions or in a soft hybrid
Best suited racquets
Luxilon 4G pairs perfectly with modern control-oriented frames such as:
| Racquet Model | Why It Works Well | Recommended Tension |
|---|---|---|
| Wilson Blade 98 (16×19 or 18×20) | Amplifies the Blade’s controlled precision and feel, giving laser-like accuracy. | 21–23kg (48–52lbs) |
| Head Prestige Pro / MP | Perfect match for the Prestige’s low power and clean feedback — keeps control ultra-consistent. | 21–22kg (47–49lbs) |
| Yonex Percept 97D | Maintains tension beautifully, helping this frame’s control-focused response shine under pressure. | 22–23kg (49–52lbs) |
| Babolat Pure Strike 98 | Tames the Strike’s natural pop and gives advanced hitters more directional stability. | 22–24kg (49–53lbs) |
| Head Speed Pro | Great for players wanting to stabilize the Speed’s lively response while keeping spin potential. | 22–23kg (49–52lbs) |
Comparable strings
Players considering Luxilon 4G might also look at:
- Silvester Energy Black 1.23 — similar control and spin but with slightly better feel and comfort.
- Kirschbaum Max Power — crisp, firm response at a lower price, though with less tension retention.
- Tecnifibre Razor Code Soft — comparable precision with more give and arm-friendliness.
Practible recommendations
Tension Range: 21–23kg (48–52lbs) for advanced players.
Hybrid Setup: Consider pairing with a softer cross like Wilson NXT or Tecnifibre X-One Biphase to boost comfort.
Player Level: Advanced competitors or heavy hitters who value feel and precision over easy power.
Restringing Frequency: Every 12–15 hours of play for consistent feel and tension maintenance — or sooner for heavy hitters training multiple times a week.
👉 Pro Tip: If you use a powerful or stiffer racquet (like a Pure Drive or Ezone 100), consider hybridizing Luxilon 4G with a softer cross such as Tecnifibre X-One Biphase, Wilson NXT, or Natural Gut to enhance comfort and touch while preserving control.
I hope this review helped you understand what Luxilon 4G is, who it works for, and what to expect from it over time. If you want to know if 4G (or another string) is right for your game or if you’re ready to book a restring, just send us a message via chat!
with the wilson rf 01 racket what voltage should I use? for control
Luxilon 4G is already quite a firm string so would steer towards low 49-51 lbs range.