Mares

Mares Smart

A simple two-button wrist computer for air and nitrox recreational diving.

Open BLE sync (libdivecomputer)

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

Mares Smart
$300
Released—
Max depth rating150m
AlgorithmRGBM
Air integrationnone
Wireless—
DisplayLCD segmented display with backlight
Batteryuser-replaceable
Digital compassNo
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
  • Very simple two-button interface, easy for first-time computer users
  • User-replaceable battery rated for 2-3 years of typical use
  • Doubles as an everyday watch with stopwatch and dual time
Cons
  • No Bluetooth or app sync
  • Single gas only
  • No digital compass or air integration

The Smart is Mares’s basic wrist computer, built around Air, Nitrox, and Free-Dive modes with nothing extra layered on top. It’s aimed squarely at divers who want a low-cost, low-complexity computer and don’t care about phone syncing.