Garmin
Garmin Descent Mk3i
$1599.99
Released 2023-11
Best Dive Computers · head-to-head
Garmin Descent Mk3i vs Mares Puck Pro+
A sourced, side-by-side comparison. Mares Puck Pro+ is cheaper at $367.95. Every spec and price links to its source.
Mares
Mares Puck Pro+
$367.95Cheaper
Which is better: the Garmin Descent Mk3i or Mares Puck Pro+?
On the specs we track, they're closely matched. The Mares Puck Pro+ is the cheaper at $367.95.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Garmin Descent Mk3i | Mares Puck Pro+ |
|---|---|---|
| US price | $1599.99 | $367.95 |
| Brand | Garmin | Mares |
| Released | 2023-11 | — |
| Algorithm | Bühlmann ZHL-16C | Buhlmann ZH-L16C |
| Max depth rating (m) | 200 | 150 |
| Display type | amoled | segment-lcd |
| Display size (in) | 1.4 | — |
| Air integration | Yes | No |
| Gas mixes | — | 2 |
| Dive modes | — | — |
| Digital compass | Yes | No |
| Battery type | rechargeable | user-replaceable |
| Battery life dive hrs | 66 | — |
| Bluetooth | Yes | Yes |
| Weight grams | 77.8 | — |
Sources — Garmin Descent Mk3i: garmin.com (verified 2026-07-11). Mares Puck Pro+: bluewaterphotostore.com (verified 2026-07-11).
What's the difference between the Garmin Descent Mk3i and Mares Puck Pro+?
Where the two actually differ on the specs we track (6 of 12). Matching specs are omitted.
- Algorithm: Garmin Descent Mk3i Bühlmann ZHL-16C vs Mares Puck Pro+ Buhlmann ZH-L16C
- Max depth rating (m): Garmin Descent Mk3i 200 vs Mares Puck Pro+ 150
- Display type: Garmin Descent Mk3i amoled vs Mares Puck Pro+ segment-lcd
- Air integration: Garmin Descent Mk3i true vs Mares Puck Pro+ false
- Digital compass: Garmin Descent Mk3i true vs Mares Puck Pro+ false
- Battery type: Garmin Descent Mk3i rechargeable vs Mares Puck Pro+ user-replaceable
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Garmin Descent Mk3i
Only one whitelisted hands-on tester (TechRadar) reviewed the exact Garmin Descent Mk3i, scoring it 5/5 overall. It praised battery life, comprehensive dive features and durability, but flagged the high four-figure price (plus paid T2 transmitter) and a relatively clunky UI. All three quotes were verified as literal substrings of the fetched article. (1 sourced review.)
Praised: Impressive battery life even with all sensors active; Comprehensive dive features: SubWave diver-to-diver comms, multi-gas/trimix, 200m rating; Rugged, durable titanium case with scratch-resistant sapphire display.
Flagged: More expensive than rivals; four-figure price (plus paid T2 transmitter); Relatively clunky UI versus native Apple/Google watches; Five physical buttons have a learning curve.
Mares Puck Pro+
No sourced tester review yet.