The Puck 4 is Mares’s current entry-level puck, updated with the Bühlmann ZH-L16C algorithm and adjustable gradient factors that older Puck models lacked. It’s built for divers who want an uncomplicated computer that clips to a console or straps to a wrist, without console-level pricing.
Mares
Mares Puck 4
An affordable, one-button puck-style computer with Bluetooth sync.
Open BLE sync (libdivecomputer)
Syncs wirelessly with third-party apps (Subsurface, Currents, etc.), not just the manufacturer app.
| Released | 2024 |
| Max depth rating | 150m |
| Algorithm | Bühlmann ZH-L16C with adjustable gradient factors |
| Air integration | none |
| Wireless | bluetooth |
| Display | Segmented 800-segment display with mineral glass |
| Battery | user-replaceable |
| Digital compass | No |
| Gas types | air, nitrox |
| Gas switches | 3 |
| CCR capable | No |
"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.