Seasats Lightfish vs Teledyne Slocum G3 Glider
Seasats vs Teledyne Marine — specs, price, and data-backed comparison.
QUICK TAKE
- Seasats Lightfish offers the faster top speed (9.25 km/h vs 3.7 km/h).
SPECIFICATIONS COMPARED
| Seasats Lightfish | Teledyne Slocum G3 Glider | |
|---|---|---|
| Company | Seasats | Teledyne Marine |
| Category | Security | Marine |
| Price: | Not announced | Not announced |
| Released: | 2023 | — |
| Weight | 138 kg | 55-70 kg (configuration dependent) |
| Payload | 29.9 kg | — |
| Speed | 9.25 km/h | 3.7 km/h |
| Battery Life | Up to 6 months on station (solar-electric with hybrid reserve) | 15 days to 18 months depending on energy source |
| 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 Lightfish and the Teledyne Slocum G3 Glider?
Seasats Lightfish is made by Seasats, while Teledyne Slocum G3 Glider is made by Teledyne Marine. Seasats Lightfish is a security, while Teledyne Slocum G3 Glider is a marine.
Which is faster, the Seasats Lightfish or the Teledyne Slocum G3 Glider?
The Seasats Lightfish has the higher top speed at 9.25 km/h, compared to 3.7 km/h for the Teledyne Slocum G3 Glider.


