TRX HOME2 Suspension Trainer vs Onnit Primal Kettlebell (16kg): Which to Buy? (2026)
Choosing between the TRX HOME2 Suspension Trainer and Onnit Primal Kettlebell (16kg)? We compare specs, scores and real-world performance to give you a clear verdict.
TRX HOME2 Suspension Trainer
Full-body workout from a door frame. 300+ exercises. The most space-efficient home gym equipment.
Onnit Primal Kettlebell (16kg)
Competition-spec cast iron. Flat base. The most popular single kettlebell for home training.
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Our Verdict
The TRX HOME2 Suspension Trainer scores 9.1/10 vs 9.0/10 for the Onnit Primal Kettlebell (16kg). Those wanting a full-body workout with minimal equipment and space — ideal for travel, small flats, or outdoor training.
🛒 Buy the Winner on Amazon →Head-to-Head: TRX vs Onnit
| Criterion | TRX HOME2 Suspension Trainer | Onnit Primal Kettlebell (16kg) | Winner |
|---|---|---|---|
| Our Score | 9.1/10 | 9.0/10 | TRX |
| Amazon Rating | 4.7★ (14,200) | 4.8★ (6,200) | Onnit |
| Price Range | Mid-Range | Mid-Range | Draw |
| Weight | 450g (complete system) | 16kg | Onnit |
| Anchor | Door, beam, or outdoor | — | Draw |
| Exercises | 300+ | — | Draw |
| Adjustable | For all fitness levels | — | Draw |
| Warranty | 1 year | — | Draw |
| Material | — | Cast iron | Draw |
| Base | — | Flat (stable) | Draw |
Full Specifications Compared
| Specification | TRX HOME2 Suspension Trainer | Onnit Primal Kettlebell (16kg) |
|---|---|---|
| Brand | TRX | Onnit |
| Our Score | 9.1/10 | 9.0/10 |
| Amazon Rating | 4.7★ (14,200) | 4.8★ (6,200) |
| Price Range | Mid-Range | Mid-Range |
| Weight | 450g (complete system) | 16kg |
| Anchor | Door, beam, or outdoor | — |
| Exercises | 300+ | — |
| Adjustable | For all fitness levels | — |
| Warranty | 1 year | — |
| Material | — | Cast iron |
| Base | — | Flat (stable) |
| Coating | — | Powder coat |
| Spec | — | Competition dimensions |
| Handle Diameter | — | 33mm |
Which Should You Choose?
Choose the TRX HOME2 Suspension Trainer if…
Those wanting a full-body workout with minimal equipment and space — ideal for travel, small flats, or outdoor training.
🛒 Check Price on Amazon →Choose the Onnit Primal Kettlebell (16kg) if…
Those starting kettlebell training or looking for a quality cast-iron bell at the most versatile starting weight.
🛒 Check Price on Amazon →Pros & Cons
TRX HOME2 Suspension Trainer
✓ Pros
- 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
✗ Cons
- 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
Onnit Primal Kettlebell (16kg)
✓ Pros
- 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
✗ Cons
- Single fixed weight — need multiple bells as strength progresses
- Premium brand pricing vs generic cast iron alternatives
- The primate face design is polarising aesthetically
Ready to Buy?
Check current prices on Amazon — prices update daily.
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Frequently Asked Questions
Is the TRX HOME2 Suspension Trainer better than the Onnit Primal Kettlebell (16kg)?
The TRX HOME2 Suspension Trainer scores 9.1/10 vs 9.0/10 for the Onnit Primal Kettlebell (16kg). Those wanting a full-body workout with minimal equipment and space — ideal for travel, small flats, or outdoor training.
Who should buy the TRX HOME2 Suspension Trainer?
Those wanting a full-body workout with minimal equipment and space — ideal for travel, small flats, or outdoor training.
Who should buy the Onnit Primal Kettlebell (16kg)?
Those starting kettlebell training or looking for a quality cast-iron bell at the most versatile starting weight.
What is the price difference?
The TRX HOME2 Suspension Trainer is Mid-Range. The Onnit Primal Kettlebell (16kg) is Mid-Range. Check current Amazon prices above.