Callaway Quantum Max OS hybrid review

Callaway's oversized, draw-biased 2026 hybrid is rated by testers as one of the easiest to hit, especially for golfers who slice or launch it low.

The Callaway Quantum Max OS is the oversized, draw-biased member of Callaway's 2026 hybrid family, aimed squarely at golfers who slice or struggle to get long shots airborne. It costs about $420 at Australian retailers, sitting in the middle of the market. Independent reviewers broadly agree it is one of the easiest hybrids to hit this season, though better ball strikers may prefer the smaller standard Quantum Max.

How we put this review together: we haven't hit this club ourselves. This review brings together the maker's specs, Australian pricing and what independent testers have published, with links so you can check them.

At a glance

  • Australian price: $419.95 at Drummond Golf; GolfBox lists an RRP of $549.99, currently $419.99
  • Lofts: 3H (18°), 4H (20°), 5H (23°), 6H (26°), 7H (29°) and 8H (32°), according to GolfBox's spec table
  • Stock shafts: Project X Denali Frost Silver 60 (regular) and 70 (stiff) on Drummond's stock version
  • Adjustability: OptiFit 4 hosel for loft and lie, plus heel and toe weighting
  • Release year: 2026
  • Best for: high and mid handicappers who miss to the right or hit their long irons too low

What's new

Callaway's Quantum hybrid range comes in three versions: the standard Quantum Max, the larger Max OS reviewed here, and the lighter Max Fast for slower swing speeds. Callaway describes the OS as an oversized, draw-biased head with high MOI, designed for golfers who struggle with a right miss or with getting the ball up.

The main technology claims are:

  • Speed Wave 2.0: Callaway says this places weight low and forward and frees up face flex for faster ball speeds, especially on strikes low on the face.
  • Step Sole Design: a reshaped sole meant to reduce turf contact for cleaner strikes, with a reshaped heel for stability.
  • Ai-designed face: tuned, Callaway says, around real hybrid impact patterns to keep speed and spin consistent across the face.
  • OptiFit 4 hosel: adjusts loft and lie, which Callaway says gives seven ball flight options.

Callaway also says the OS head blends visually with its Quantum Max OS irons, which helps if you are building a forgiving set from scratch.

What independent testers found

Golf Monthly called the Max OS an exceptionally forgiving hybrid with a high, controlled and straight flight, a subtle draw bias and excellent turf interaction. It noted the head is clearly larger than the standard Max at address and that the glossy crown may not suit everyone. Its main criticism was the OptiFit 4 hosel, which the reviewer found tricky to master. Golf Monthly also encouraged mid handicappers not to be put off by the size.

National Club Golfer gave it 4.5 out of 5 and called it one of the easiest hybrids its reviewer had tried in a long time. Compared with the standard Quantum Max, NCG found the OS launches noticeably higher with more spin and a steeper descent, which helps long approaches stop on the green. Its pros were forgiveness across the face, a high launch from any lie and a draw bias that works; the con was that it is less workable than other hybrids.

Plugged In Golf was more measured. The reviewer liked the smooth, powerful feel and found the dispersion "could be relied on to favor a straight ball", but got better results, with less carry and spin variation, from the standard Quantum Max. Plugged In Golf flagged that its comparison was not like for like (a 4 hybrid OS against a 3 hybrid Max) and recommended a fitting.

The picture across all three: very forgiving and easy to launch, with a draw bias that suits slicers, but less appealing for golfers who want to shape shots or who already hit hybrids well.

Who it suits

  • Golfers whose long irons and hybrids drift right (for right-handers)
  • Higher handicappers and beginners who want maximum confidence from a big head
  • Anyone building a forgiving set around the Quantum Max OS irons

Who should look elsewhere

  • If you already hit hybrids solidly, the standard Callaway Quantum Max hybrid is smaller and, for Plugged In Golf, produced tighter results.
  • If you want a high-launching premium alternative with a removable weight, the TaylorMade Qi4D Max Rescue is worth comparing.
  • If budget matters most, the Cleveland Halo XL hybrid is a forgiving option at a noticeably lower Australian price.

Buying it in Australia

Drummond Golf lists the right-handed Quantum Max OS at $419.95 in 3, 4 and 5 hybrid. GolfBox lists it at $419.99, down from a $549.99 RRP, in right and left hand with lofts from 3H to 8H, and offers custom club fitting at its Perth stores.

Because the OptiFit 4 hosel can be confusing, it is worth asking the shop to set the loft and lie for you when you buy. If you are a visitor only playing a few rounds, hiring clubs from the course or pro shop is usually the simpler choice.

The verdict

On the research available, the Callaway Quantum Max OS looks like one of the most forgiving and easy-launching hybrids of 2026, and a strong fit for golfers who slice or hit their long irons low. Testers agree on the forgiveness and the high, straight flight. The caveats are a large, glossy head that some will dislike, a fiddly hosel, and evidence from Plugged In Golf that confident hybrid players may do better with the standard model.

Sources

Photo: Callaway Diablo hybrid wood by Lee & Chantelle McArthur, CC BY 2.5 (licence), via Wikimedia Commons.