Seasats Heavyfish vs Seasats Lightfish
Seasats vs Seasats — specs, price, and data-backed comparison.
QUICK TAKE
- Seasats Heavyfish offers the higher payload (453.5 kg vs 29.9 kg).
- Seasats Heavyfish offers the faster top speed (22.21 km/h vs 9.25 km/h).
- Seasats Lightfish offers the lighter build (138 kg vs 4,082 kg).
- Seasats Heavyfish is the newer platform (2,026 vs 2,023).
SPECIFICATIONS COMPARED
| Seasats Heavyfish | Seasats Lightfish | |
|---|---|---|
| Company | Seasats | Seasats |
| Category | Security | Security |
| Price: | Not announced | Not announced |
| Released: | 2026 | 2023 |
| Weight | 4,082 kg | 138 kg |
| Payload | 453.5 kg | 29.9 kg |
| Speed | 22.21 km/h | 9.25 km/h |
| Battery Life | Up to 6 months on station | Up to 6 months on station (solar-electric with hybrid reserve) |
| Connectivity | — | Iridium and Starlink satellite communications; AIS; C2 interoperable |
| Software / AI | — | Onboard AI for edge processing and target classification; collision avoidance; GPS-denied navigation |
Buying guides and prices
FREQUENTLY ASKED QUESTIONS
What is the difference between the Seasats Heavyfish and the Seasats Lightfish?
Seasats Heavyfish is made by Seasats, while Seasats Lightfish is made by Seasats. Both are securitys, so the differences come down to price and specifications.
Which has the higher payload, the Seasats Heavyfish or the Seasats Lightfish?
The Seasats Heavyfish has the higher payload at 453.5 kg, compared to 29.9 kg for the Seasats Lightfish.
Which is faster, the Seasats Heavyfish or the Seasats Lightfish?
The Seasats Heavyfish has the higher top speed at 22.21 km/h, compared to 9.25 km/h for the Seasats Lightfish.