Shearwater Perdix AI

The original Perdix plus wireless air integration for up to two transmitters.

Open BLE sync (libdivecomputer)

Syncs wirelessly with third-party apps (Subsurface, Currents, etc.), not just the manufacturer app.

$1175

Released	2016
Max depth rating	260m
Algorithm	Bühlmann ZHL-16C with gradient factors, or VPM-B
Air integration	wireless
Wireless	bluetooth
Display	2.2" full-color LCD, 320x240 QVGA
Battery	user-replaceable
Digital compass	Yes
Gas types	air, nitrox, trimix
Gas switches	5
CCR capable	Yes

"Gas switches" is how many different mixes this computer can be programmed to switch between mid-dive, mostly relevant for technical/staged-decompression diving. It doesn't tell you which gas types (air, nitrox, trimix) are supported. See Gas types and the product description above for that.

Pros

Wireless air integration for up to two transmitters, showing tank pressure and gas time remaining
Same rugged AA-battery design and size as the standard Perdix
Up to 5 gases with CCR fixed-setpoint support

Cons

Listed price found includes a transmitter bundle, computer-only pricing will run lower
Superseded in Shearwater's current lineup by the Perdix 2
Bulkier and pricier than needed for casual recreational diving

Diver community sentiment

Mostly positive

Across several Scubaboard threads, divers consistently praise the Perdix AI's bright, easy-to-read display, intuitive interface, long service life (7-9 years and still getting firmware updates for some owners), user-replaceable AA battery, and reliable air-integration/SAC-rate features once paired with a transmitter. Recurring complaints center on price, its larger/bulkier form factor versus wristwatch-style computers, and a documented battery-drain issue affecting some units (batteries dying within days/weeks of storage). A minority of posts also debate whether air integration is worth the premium given divers still carry a backup SPG, but overall sentiment is strongly favorable.

Scubaboard: Perdix AI general opinions Scubaboard: battery drain issue thread ScubaLab: Perdix AI Testers Choice review

Summarized from public forum discussion (Scubaboard, Reddit, and similar), not a survey we ran ourselves. See the linked threads for the original conversations.

The Perdix AI took the standard Perdix’s AA-battery, tec-focused design and added wireless air integration, without changing the external size or shape. It’s since been succeeded by the Perdix 2, but remains a common sight on tec and rec-tec crossover divers.