Uni-ball One P 0.38mm vs Uni-ball Jetstream 3
Uni-ball One P 0.38mm ($5) vs Uni-ball Jetstream 3 ($10) — side-by-side specs, weight, pros and cons to help you pick the right ballpoint.
Spec-by-spec
| Spec | Uni-ball One P 0.38mm | Uni-ball Jetstream 3 |
| Price | $5 | $10 |
| Weight | 8g | 20g |
| Tip | 0.38mm (finest ballpoint) | — |
| Ink | Pigment-based JETSTREAM | — |
| Weight | 8g | 20g |
| Barrel | Compact body | — |
| Refill | Yes (SXR-202-38) | — |
| Colors | Multiple | — |
| Tips | — | 3 (black/red/blue) |
| Size | — | 0.5mm each |
| Refillable | — | Yes |
Pros & Cons
Uni-ball One P 0.38mm
- 0.38mm extraordinarily fine
- JETSTREAM ink does not skip
- Pigment ink smear-resistant
- 8g essentially weightless
- $5 replacement if lost
- Tiny barrel may not suit large hands
- Grip finish can get slippery
- Refills not at every store
Uni-ball Jetstream 3
- Three colors
- Fast-drying
- Excellent for lefties
- Body plastic
- Knock mechanism rattles
Uni-ball One P 0.38mm is the better value at $5. Both are part of our curated ballpoint index — tap through to check current pricing.