Onnit Primal Kettlebell (16kg) vs TRX HOME2 Suspension Trainer (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

TRX HOME2 Suspension Trainer

9.1/10 Excellent

4.7★ (14,200 owners)

Full-body workout from a door frame. 300+ exercises. The most space-efficient home gym equipment.

Full Review

At a Glance

	Onnit Primal Kettlebell (16kg)	TRX HOME2 Suspension Trainer
247Verdict Score	9.0/10	9.1/10
Owner Rating	4.8★ (6,200)	4.7★ (14,200)
Verdict	Excellent	Excellent
Weight	16kg	450g (complete system)

Quick Verdict

This is a genuine draw — both score within 0.15 points of each other. Onnit Primal Kettlebell (16kg): Competition-spec cast iron. Flat base. The most popular single kettlebell for home training. TRX HOME2 Suspension Trainer: Full-body workout from a door frame. 300+ exercises. The most space-efficient home gym equipment. Choose based on your specific needs. 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

TRX HOME2 Suspension Trainer

300+ exercises from a single attachment point — door, beam, or outdoor anchor
Weighs 450g — the most portable serious training system
Scales from beginner to elite by adjusting body angle
App provides structured programmes from beginner to advanced
Genuinely durable — used in commercial gyms and military training

Requires suitable anchor point — not all doors or ceilings work
Takes time to learn correct technique for each exercise
Less effective for maximal strength than heavy free weights

FAQ

Which is better, Onnit Primal Kettlebell (16kg) or TRX HOME2 Suspension?

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

The TRX HOME2 Suspension Trainer 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 TRX HOME2 Suspension best suited to?

Full-body workout from a door frame. 300+ exercises. The most space-efficient home gym equipment.

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. TRX HOME2 Suspension Trainer: Requires suitable anchor point — not all doors or ceilings work; Takes time to learn correct technique for each exercise.

Do owner ratings agree with our verdict?

Largely, yes — Onnit Primal Kettlebell (16kg) sits at 4.8★ from 6,200 verified Amazon owners, and TRX HOME2 Suspension Trainer at 4.7★ from 14,200.

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