Page 1 of 1

comparison 2, nano or +?

Posted: 22 Mar 2026, 12:54
by hkh
Hi,


is there a comparison chart?

I'm wondering if the differences between OSTC 2, nano and + are just the physical dimensions and batteries.

As a cheaper alternative to Shearwater Perdix 2 I'm considering an OSTC sport edition for use with open system only, and like the possibility to upgrade to tec later on if needed.

/HKH

Re: comparison 2, nano or +?

Posted: 22 Mar 2026, 17:34
by heinrichsweikamp
Hi,

I have our comparison sheet attached here. If you don't mind the slightly smaller display, the OSTC nano is very popular right now. Especially for CCR divers (as a backup with fixed setpoints).

Regards,
Matthias