Sherwood

Sherwood Wisdom 4

A high-end console computer with a liquid-filled compass, large four-line display, and Pelagic's Modified Haldanean/DSAT algorithm.

Open BLE sync (libdivecomputer)

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

Sherwood Wisdom 4
3.0Comparison Score
$1000
Released2019
Max depth rating100m
AlgorithmModified Haldanean/DSAT
Air integrationhose
Wirelessbluetooth
DisplayLarge-character monochrome LCD, four-line layout
Batteryuser-replaceable
Digital compassYes
Gas typesair, nitrox
Gas switches1
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
  • Liquid-filled compass with 360-degree ratcheting bezel, more precise than typical digital compasses
  • Large, bold four-line display rated highly for readability at depth
  • Dive time remaining calculated from real-time air consumption
Cons
  • Premium price for a hose-mounted console rather than a wireless or watch-style computer
  • Monochrome display only, no color option
  • Same Pelagic DSAT/modified Haldanean algorithm as the older Wisdom 3, not a Bühlmann implementation
Diver community sentiment
Mixed opinions

Discussion specific to the Wisdom 4 on Scubaboard is fairly sparse and skews toward frustration rather than praise. One diver reported a recurring "T00" depth/pressure-sensor error message across multiple dive days that Sherwood's stated explanation didn't resolve. Another thread shows a diver struggling with confusing Bluetooth pairing instructions for the DiverLog+ app, with a responder confirming there's a real learning curve. Broader discussion of the Wisdom line shows divers liking the large, easy-to-read display and air-integration accuracy, but consistently criticizing the companion desktop software as "archaic," offset by praised no-questions-asked warranty replacements.

Scubaboard: Wisdom 4 T00 error message threadScubaboard: Bluetooth setup confusionScubaboard: general Wisdom line feedback

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

The Wisdom 4 is Sherwood’s top-of-the-line console computer, aimed at divers who prefer a mechanical-style liquid-filled compass over a digital one and a large, simple four-line readout over a color screen. It runs on the same Pelagic-built Modified Haldanean/DSAT decompression model as the Wisdom 3 before it, with Bluetooth added for syncing dives to Sherwood’s companion app without a cable.