Irons · 2021
Callaway Apex Pro 21
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 24 May 2026
Performance index
Six researched ratings, lower (blue) through to elite (gold).
Where it wins
- Feel88
- Looks88
- Sound86
Watch
Rated highest for feel and looks; its softest dimension is forgiveness.
You're a 0-10 HCP at 85-115mph scratch-to-single-digit handicapper who wants the 2021 BEST players iron + class-leading forgiveness for the category + longest iron in MGS testing + forged hollow-body feel with 90g tungsten.
Your handicap exceeds 10 (use the Apex 21 standard or Apex DCB 21), you want a pure blade feel (use the Apex MB 21), or you want current-generation Callaway AI iron tech.
Pros
- 2021 BEST PLAYERS IRON in MGS testing — 0.1542 Strokes Gained (0.081 better than runner-up) + BEST for forgiveness
- Longest 5-iron in MGS testing for 60% of testers + 1/2 to 3/4 club longer than most peers
- Up to 90g tungsten per iron (most ever in Apex) + AI-designed Flash Face Cup forged hollow body
- 4.8/5 (97% recommended) Callaway Pre-Owned + 2021 Golf Digest Hot List 5 stars for performance
Cons
- Now 4 years old — superseded by Apex Pro 24 (2024) with enhanced AI Flash Face technology + improved sole design
- Aimed at scratch and single-digit handicappers — too demanding for mid/high HCP players
- Unique mix of soft and explosive feel — hollow body + 90g tungsten reduces classic players-iron pure-feel sensation vs blade siblings
- Premium pricing typical of forged hollow-body players irons — not the value option
By dimension
Forgiveness
SolidIndependent testing pool found the Callaway Apex Pro performed outstandingly — not only was it the 2021 Best Players Iron, it was the best for forgiveness as well. The Apex Pro 21 ranked second in protecting carry distance, giving up just eight yards between on- and off-centre hits in the 2021 Iron Test. Hollow body construction includes up to 90 grams of tungsten per iron, the most ever in an Apex Iron — Tungsten Energy Core improves launch characteristics while simultaneously improving forgiveness. Biggest improvement in the Apex Pro 21 irons over previous Apex Pro irons lies with mis-hit forgiveness. Top-tier forgiveness in players iron class — BEST for forgiveness in 2021 MGS test + 90g tungsten + only 8yd on/off-center carry gap + AI Flash Face Cup.
Distance
ExcellentFor 60% of MyGolfSpy testers, the Callaway Apex Pro 5-iron was the longest iron in testing out of all of the other iron models. The irons are 1/2 to 3/4 of a club longer while hitting higher than most other irons. 7-iron testing measured 117.9 mph ball speed, 7,305 rpm spin, 33.2° launch, 162.8yd total + 156.5yd carry on Flightscope. AI designed Flash Face Cup creates high COR's for fast ball speeds. Top-tier distance — class-leading players-iron carry in 2021 MGS testing + 1/2 to 3/4 club longer than most peers + AI Flash Face Cup for high COR.
Workability
StrongSlimmer top line, less offset, and compact blade length vs Apex 21. Pro model has a forged hollow-body construction with a thinner sole and more compact profile. Apex Pro 21 is considered the better-player entry — aimed at scratch and single-digit handicappers. Forged hollow body players-iron shape supports shape control. Above-average workability — compact players-iron shape + thin topline + less offset support shape control; hollow body + 90g tungsten core reduces pure-blade workability vs MB sibling but still strong shotmaker iron.
Feel
ExcellentWhen struck well, the Callaway Apex Pro 21 irons have a feel that is a unique mix of soft and explosive, leaning more toward the latter. All-new forged 1025 hollow body construction and patented urethane microspheres provide a remarkable blend of sound and feel at impact. The 100% forged head results in a muted feel & sound at impact, which is a desirable characteristic for better players. Cushioning feel of an Apex is what a better player wants in an iron. Top-tier feel — 'soft and explosive' unique impact + 1025 hollow body forged + urethane microspheres + muted cushioning feel.
Sound
ExcellentWell-struck shots announced by a snappy impact sound that's modest in volume. The 100% forged head results in a muted feel & sound at impact, which is a desirable characteristic for better players. The muted sound is simply addicting. Forged 1025 + urethane microspheres deliver exceptional sound. Top-tier sound — snappy modest-volume impact + muted forged hollow body acoustic + 'addicting' tonal character.
Looks at address
ExcellentThe Apex Pro 21 is noticeably thinner and smaller than the standard Apex 21, with a slimmer top line, less offset, and compact blade length. Beautiful in the bag and at address. Satin (non-shiny) finish instead of a chrome finish, which helps to mask smudges, nicks, scratches and other surface imperfections. Players-performance iron premium look. Top-tier address — slimmer topline + less offset + compact blade length + satin finish + premium players-iron aesthetic.
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 2021 Most Wanted Player's Iron - MyGolfSpy
- Read the full review at Callaway Apex Pro 21 Irons Review - Plugged In Golf
- Read the full review at Callaway Apex Pro 21 Irons Review - Independent Golf Reviews
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 Callaway Apex Pro 21 best for?
You're a 0-10 HCP at 85-115mph scratch-to-single-digit handicapper who wants the 2021 BEST players iron + class-leading forgiveness for the category + longest iron in MGS testing + forged hollow-body feel with 90g tungsten.
Who should avoid the Callaway Apex Pro 21?
Your handicap exceeds 10 (use the Apex 21 standard or Apex DCB 21), you want a pure blade feel (use the Apex MB 21), or you want current-generation Callaway AI iron tech.
What handicap is the Callaway Apex Pro 21 suitable for?
The Callaway Apex Pro 21 scores strongest for scratch and tour players, and also suits mid-handicap golfers and low-handicap golfers.
What is the Callaway Apex Pro 21 best at?
In our research the Callaway Apex Pro 21 rates highest for distance and feel, and is softest on forgiveness.
Does the Callaway Apex Pro 21 have a shot bias?
The Callaway Apex Pro 21 is broadly neutral in shot shape (no built-in draw or fade bias), with a mid-high launch and mid spin.