Sherwood

Sherwood Amphos Air

A watch-style computer with hoseless air integration. Price shown includes the transmitter, which Sherwood also sells separately.

Cable sync only (libdivecomputer)

Third-party apps can read it, but only over a USB/serial cable, not wirelessly.

Sherwood Amphos Air
2.2Comparison Score
$1150
Released2019
Max depth rating100m
AlgorithmModified Haldanean/DSAT
Air integrationwireless
Wirelessbluetooth
DisplayMonochrome LCD, Wisdom3-style layout
Batteryuser-replaceable
Digital compassYes
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
  • Hoseless (wireless) air integration in a watch-style case
  • Two-gas switching with independent PO2 alarm settings
  • Nitrogen/oxygen/ascent loading bar graphs for at-a-glance status
Cons
  • Could not confirm whether a digital compass is included
  • Monochrome display only
  • $1,150 price is for the bundle with transmitter; computer-only pricing is lower but unconfirmed
Diver community sentiment
Mostly negative

Divers across several Scubaboard threads report recurring firmware and hardware reliability problems with the Amphos/Amphos Air: units getting stuck in the wrong time/dive mode, gas-mix settings changing unexpectedly mid-use, screens going blank, MODE buttons failing, and false "violation" alerts on dives that were by the book. One dive instructor reported that nearly all of roughly 50 rental units in their shop needed service at least once over two years and recommended competitors instead. A separate thread documented an O-ring manufacturing defect in early transmitter units. Not all feedback was negative: some long-term owners (8-9 years) reported no issues, praising the watch-style form factor when it worked.

Scubaboard: dive shop reports of repeated rental-unit serviceScubaboard: stuck in wrong mode complaintScubaboard: false violation alert thread

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

The Amphos Air brings Sherwood’s Wisdom-style monochrome display into a smaller, watch-style case with wireless air integration, aimed at divers who want hoseless AI without stepping up to the Sage’s console format or a color screen.