Onnit Primal Kettlebell (16kg) vs Theragun Pro 5th Generation (2026)

✍️ By the 247Verdict Editorial Team📅 Updated 05 October 2026

Which is better? We compared both on score, owner ratings, pros and cons.

Onnit Primal Kettlebell (16kg)

9.0/10 Excellent

4.8★ (6,200 owners)

Competition-spec cast iron. Flat base. The most popular single kettlebell for home training.

Full Review

Theragun Pro 5th Generation

9.2/10 Excellent

4.6★ (12,400 owners)

16mm amplitude percussion therapy. Used by professional sports teams. The recovery standard.

Full Review

At a Glance

	Onnit Primal Kettlebell (16kg)	Theragun Pro 5th Generation
247Verdict Score	9.0/10	9.2/10
Owner Rating	4.8★ (6,200)	4.6★ (12,400)
Verdict	Excellent	Excellent
Weight	16kg	1.36kg

Quick Verdict

Both are strong choices, but the Theragun Pro 5th Generation edges ahead with a 9.2/10 vs 9.0/10. 16mm amplitude percussion therapy. Used by professional sports teams. The recovery standard. That said, the Onnit Primal Kettlebell (16kg) is worth considering if Competition-spec cast iron. Flat base. The most popular single kettlebell for home training. Check the current price on Amazon →

Pros & Cons Side by Side

Onnit Primal Kettlebell (16kg)

Competition-specification dimensions — consistent feel across all weights
Flat base for push-up variations and renegade rows
Single-piece casting with no welds or seams that catch on calluses
Powder-coated finish prevents rust and provides grip without chalk
16kg is the ideal starting weight for most adults' first kettlebell

Single fixed weight — need multiple bells as strength progresses
Premium brand pricing vs generic cast iron alternatives
The primate face design is polarising aesthetically

Theragun Pro 5th Generation

16mm amplitude — significantly deeper than budget alternatives
2600 RPM QuietForce Technology — genuinely quiet for the power
Rotating arm reaches every muscle group without a partner
Bluetooth app provides guided routines from physiotherapists
2.5-hour battery with swappable battery option

£375+ is expensive for a massage gun
Heavy at 1.36kg — fatigue during extended use
App features add value but require phone pairing

FAQ

Which is better, Onnit Primal Kettlebell (16kg) or Theragun Pro 5th?

Is the Onnit Primal Kettlebell (16kg) worth the extra cost?

The Theragun Pro 5th Generation matches or exceeds it at a potentially lower price point.

Who is the Onnit Primal Kettlebell (16kg) best suited to?

Competition-spec cast iron. Flat base. The most popular single kettlebell for home training.

Who is the Theragun Pro 5th best suited to?

16mm amplitude percussion therapy. Used by professional sports teams. The recovery standard.

What are the main downsides of each?

Onnit Primal Kettlebell (16kg): Single fixed weight — need multiple bells as strength progresses; Premium brand pricing vs generic cast iron alternatives. Theragun Pro 5th Generation: £375+ is expensive for a massage gun; Heavy at 1.36kg — fatigue during extended use.

Do owner ratings agree with our verdict?

Largely, yes — Onnit Primal Kettlebell (16kg) sits at 4.8★ from 6,200 verified Amazon owners, and Theragun Pro 5th Generation at 4.6★ from 12,400.

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