Driver · 2021
Mizuno ST-X
The CaddyIndex™ breakdown: our rating across all six performance dimensions, researched from published expert reviews, online sentiment and our own weighting algorithm.
By the CaddyCompare editorial team · updated 29 May 2026
Performance index
Six researched ratings, lower (blue) through to elite (gold).
Where it wins
- Looks86
- Feel84
- Sound84
Watch
Rated highest for looks and feel; its softest dimension is workability.
You're a consistent ball-striker who wants Mizuno's dense feel and brilliant sound with a touch of draw bias and workability, and you don't need a big, forgiving head.
You need maximum forgiveness or a big sweet spot - the neutral ST-Z is the easier miss, and later ST-Max heads are far more stable.
Pros
- Outstanding, dense Mizuno feel and a genuinely brilliant centred sound
- Superb, neutral looks balancing modern and classic shaping
- Strong centred ball speed and a draw-leaning consistency that finds fairways
- A more workable, slightly higher-spinning alternative to the neutral ST-Z, preferred by Mizuno's staff players
Cons
- Forgiveness is average at best - the sweet spot is small and impact-location feedback isn't precise
- Limited adjustability - just 2.25 degrees of hosel loft and a single sole weight
By dimension
Forgiveness
SolidThe weak point - forgiveness is average at best, with the sweet spot hard to locate and impact-location feedback imprecise. The longer heel-to-toe profile and heel weighting add some stability and a draw-leaning consistency, but this is not a big, forgiving head and rewards a centred strike.
Distance
SolidStrong on the centre - when hitting the sweet spot the ball speed was as good as anything, and the draw-leaning consistency translated to a few extra yards by finding the fairway. Among credible distance drivers of its year, quick when struck well, with launch and spin average to slightly low.
Workability
FairModerate, leaning draw - a centre of gravity positioned slightly more forward and closer to the shaft gives greater workability than the ST-Z, with a heel-weighted, draw-leaning shape. More shapeable than the neutral ST-Z, but the draw bias limits a full fade.
Feel
ExcellentA real strength - Mizuno's more dense feedback means that hit on the sweet spot it feels outstanding, with a solid, informative impact. The dense, premium sensation Mizuno is known for.
Sound
ExcellentBrilliant and informative - the impact sound is just brilliant, with centred shots quiet and medium in pitch while mishits are louder, adding a useful jarring quality. A premium, tuned acoustic that rewards the centre.
Looks at address
ExcellentA class act - the ST drivers look superb, striking a fine balance between modern, cutting-edge aesthetics and classic shaping, with a very neutral, premium look at address. Among the better-looking heads of 2021.
Sources
Dig into the independent expert reviews and lab tests that feed into how every club here is rated. Each one is worth reading in full — they carry the launch-monitor data, hands-on testing and detailed photography that paint the complete picture before you buy.
- Read the full review at Mizuno ST-X Driver Review - Plugged In Golf
- Read the full review at Mizuno ST-Z and ST-X driver Review - Today's Golfer
- Read the full review at Mizuno ST-X Driver Review - Is Mizuno A Major Player In 2021? - Golf Monthly
- Read the full review at Mizuno ST drivers: ClubTest 2021 review - GOLF.com
- Read the full review at 2021 Mizuno ST-X and ST-Z drivers, fairway woods - GolfWRX
- Read the full review at Mizuno ST-X and ST-Z Drivers - MyGolfSpy
We paraphrase and synthesise these sources; we don't republish them. Publishers can read how we use reviews or request a change.
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Frequently asked questions
Who is the Mizuno ST-X best for?
You're a consistent ball-striker who wants Mizuno's dense feel and brilliant sound with a touch of draw bias and workability, and you don't need a big, forgiving head.
Who should avoid the Mizuno ST-X?
You need maximum forgiveness or a big sweet spot - the neutral ST-Z is the easier miss, and later ST-Max heads are far more stable.
What handicap is the Mizuno ST-X suitable for?
The Mizuno ST-X suits a broad range of abilities, from high-handicap beginners through to scratch and tour players.
What is the Mizuno ST-X best at?
In our research the Mizuno ST-X rates highest for looks at address and feel, and is softest on workability.
Does the Mizuno ST-X have a shot bias?
The Mizuno ST-X has a draw bias, with a mid launch and mid spin.