Aqualung

Aqualung i330R

A compact, ultra-bright color wrist computer with rechargeable battery and Bluetooth 5.0.

Open BLE sync (libdivecomputer)

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

Aqualung i330R
3.5Comparison Score
$649
Buy on AmazonBuy on Scuba.com
Released2021
Max depth rating100m
AlgorithmBühlmann ZHL-16C Sport Version
Air integrationnone
Wirelessbluetooth
DisplayUltra-bright color display, ~1in wide
Batteryrechargeable
Digital compassNo
Gas typesair, nitrox
Gas switches3
CCR capableNo

"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
  • Small, uncluttered color display that's easy to read in bright conditions
  • Rechargeable battery rated for about 30 hours per charge
  • Air, Nitrox, Gauge, and Free Dive modes with up to 3 gas mixes
Cons
  • No built-in digital compass
  • Sealed rechargeable battery instead of a user-swappable cell
  • 24-dive log memory is modest next to console rivals
Diver community sentiment
Mostly positive

On Scubaboard, divers generally regard the i330R as a strong value pick, praising it for finally running a real Bühlmann ZH-L16C algorithm (a departure from Aqualung's older proprietary algorithms), its bright color display, rechargeable battery, and 3-gas support at a lower price than rivals like the Shearwater Peregrine or Apeks DSX. Recurring criticisms center on the algorithm offering only three fixed gradient-factor presets (no custom GF settings), a 2022 CPSC-confirmed recall for an altitude-adjustment firmware bug that could produce incorrect no-deco calculations (resolved via free firmware update), and scattered reports of minor depth-reading discrepancies within the unit's stated accuracy spec.

Scubaboard: i330R value/algorithm discussionScubaboard: recall and GF preset discussionCPSC: official i330R recall notice

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

The i330R is Aqualung’s compact color wrist computer, built around a small but bright display and Aqualung’s Sport-tuned Bühlmann algorithm. It’s sold as both a wrist unit and a 2-gauge console.