Newton Golf Gravity Prism Putter (Classic Mallet Design Reviewed)

Pros & Cons

✅ Striking symmetrical design aids alignment and confidence at address
✅ High Moment of Inertia (MOI) creates exceptional stability and forgiveness on off‑center strikes
✅ Ultra‑Low Balance Point construction enhances natural tempo and reduces wrist involvement
✅ Weight‑forward and low center of gravity help generate smoother, truer roll with less side spin
❌ Higher retail price around $450 positions it in the premium range
❌ Extremely head‑heavy build may feel unusual for golfers preferring traditional balance or lighter putters
❌ Unique shaft and grip combination can require an adjustment period to adapt to the feel and tempo.

Newton Gravity Prism Putter Design & Specs

The Prism putter is a modern mallet and is the go-to option in the Gravity series for maximum stability, forgiveness and straightforward alignment.

Crafted from precision-milled 6061 aluminum and enhanced with a 50‑gram tungsten weight, the Prism features a striking symmetrical shape with deep rear wings that redistribute mass to the perimeter.

The construction of the mallet dramatically raises the Moment of Inertia (MOI), ensuring exceptional resistance to twisting on off‑center strikes.

The key design feature is Newton’s patented Ultra Low Balance Point (ULBP) technology, which shifts nearly all effective mass into the head while pairing it with a 40‑gram Tempo carbon‑fiber shaft and lightweight grip.

The result is a smoother pendulum‑style stroke with natural tempo and consistent roll and one of the most natural putting strokes out there.

Combined with a forward positioning of the center of gravity and a weight‑forward design, the Prism encourages a pure, end‑over‑end ball roll that minimizes side spin and more precise putting performances on the greens.​

RELATED: Review of the Newton Motion & Fast Motion Shafts

Newton Golf Gravity Prism Putter Review: Is it any good?

The Prism putter is designed for players who value consistency and forgiveness on the greens and it delivers very much so on the latter thanks the Newton Golf’s unique design.

It features the brand’s Ultra Low Balance Point (ULBP) technology and that is no gimmick as it shifts nearly all weight to the head and helps promote a smoother, more natural pendulum stroke.

In testing, the feel off the putter face is soft but still has plenty of responsiveness and despite being a fairly large headed mallet it is a solid performer across varying greens speeds.

If you are looking for a forgiving mallet-style putter than delivers excellent tempo time-after-time, consistent ball striking and good distance control then the Prism should be on your radar.