Aqualung

Aqualung i200C

A simple, colorful entry-level computer with Bluetooth logging.

Open BLE sync (libdivecomputer)

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

Aqualung i200C
2.4Comparison Score
$317.24
Buy on AmazonBuy on Scuba.com
Released2018
Max depth rating100m
AlgorithmPelagic Z+
Air integrationnone
Wirelessbluetooth
DisplaySegment LCD
Batteryuser-replaceable
Digital compassNo
Gas typesair, nitrox
Gas switches2
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
  • User-changeable, globally available standard battery
  • Bluetooth sync to Aqualung's free companion app
  • Simple 4-mode operation (Air, Nitrox, Gauge, Free Dive)
Cons
  • No digital compass
  • No air integration
  • Two-gas limit versus three on the i300C
Diver community sentiment
Mixed opinions

Scubaboard discussions of the i200C show a split between budget-conscious buyers who like its compact form factor, nitrox support, and Pelagic Z+ algorithm, described by one veteran poster as "solid, middle of the road," and multiple posters reporting real reliability problems. Complaints include units arriving with the bezel installed upside-down and gapped seals, a unit that froze unresponsive during setup, rapid battery drainage and unexpected resets after only ~200 hours of use, and a companion app users say is Bluetooth-flaky and crash-prone. Several posters described being unsatisfied with Aqualung support, with at least one explicit "don't buy it" thread and users switching to Shearwater afterward.

Scubaboard: defective units, seal/bezel defectsScubaboard: battery drain and reset complaintsScubaboard: i200c vs i300c comparison

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

The i200C is Aqualung’s entry-level wrist computer, running the same Pelagic Z+ algorithm as the rest of the “i” line but with fewer gas slots and no compass. It’s built to be a low-friction first computer, with Bluetooth logging to Aqualung’s companion app.