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A red ring fills through your recovery, then turns green and buzzes the moment you’re clear to dive.
Now in beta · Freediving & spearfishing
The best freediving dive
computer is already
on your wrist.
inDepth Blue turns the Garmin you already own into the freediving computer no watch has been — five surface-rest safety models, live depth, heart rate, hang detection, and on-wrist dive history, with every session taken apart on your phone. No other watch we’ve found does all of this in one place.
DesktopInstallerSoonDownload on theApp StoreSoonGet it onGoogle PlaySoon
or request a beta invite ↓
Why no other watch does this
Three things no other freediving watch does. All on your wrist.
We looked. The Descent Mk3 is a fine dive computer — but the conservative surface-rest models the freediving world actually trains under, mid-dive profiles on the wrist, and automatic hang detection aren’t there. They are here.
01
Five surface-rest models
2× / 3× dive time, Adaptive (AIDA), Taravana nitrogen-load, and the Molchanovs system — the conservative recovery models the freediving world trains under, computed live on the wrist.
No other watch we’ve found runs these.
02Mid-dive profiles on the wrist
Open any dive’s depth graph, ascent / descent rates and stats during the session — on the watch, without ending it or reaching for your phone.
No other watch we’ve found does this.
03Hang detection
Automatically finds your bottom hang — total and longest hold — and marks the stretch in red on the profile.
We’ve yet to see this on another freediving watch.
Priority Safety & recovery
Your dive watch doesn’t know when it’s safe to dive again.
Freediving’s risk builds between dives, not just during them. Surface too early and blackout risk climbs — yet the most advanced freediving watch on the market still hands you a count-up timer and calls it “recovery time.” inDepth Blue runs the conservative, adaptive surface-rest models the freediving world actually trains under — AIDA, Taravana, Molchanovs, 2× / 3× dive time — right on the watch you already own, and counts your recovery for you. Rest becomes a number you can trust, not a guess.
Five surface-rest models
2× / 3× dive time, Adaptive (AIDA), Taravana nitrogen-load, and the Molchanovs system — pick how conservative you dive.
Shortfall flags
Surface early and the phone flags that dive in red — a recovery and blackout-risk cue you can’t argue with.
A training aid, not a life-support device. inDepth Blue never blocks a dive — it informs one. Never dive alone; one up, one down.
Priority A dive computer on your wrist
Live depth, stats and charts — one press from the surface, mid-session.
During a session the watch is a proper freediving instrument. Summary, Surface and Log sit one button apart, and you can open any dive’s depth graph, rates and stats during the session — without ending it, without reaching for your phone. That’s the mid-dive profile no other freediving watch we’ve found offers.
On your phone Deep analysis
Every dive, taken apart.
inDepth Sync pulls sessions off the watch over Bluetooth — a loss-tolerant transfer that keeps working on a busy link — and turns each dive into a full workup. The depth graphs, velocity plots, heart-rate recovery and session-over-session trends no freediving watch can render on a 1-inch screen, all on your phone.
Built by freedivers, for freedivers
inDepth Blue started on a dive line.
inDepth Blue was built by a freediver who got tired of his Garmin knowing his depth but having no idea when it was safe to dive again. Five surface-rest models, mid-dive profiles, hang detection — every feature in inDepth Blue exists because the watch on his wrist didn’t do it.
— Mariusz, founder
Supported hardware
Works on the watch you already own.
No new gear to buy. inDepth runs on thirteen Garmin models today — the fēnix 5, 5 Plus and 7 families plus the Descent Mk2 and Mk3 — and more are on the way. Depth on fēnix 5 and 5 Plus is chamber-verified to ~0.1 m past 40 metres; on fēnix 7 and Descent, Garmin firmware limits what Connect IQ apps can read, so treat depth there as unverified for now.
| Watch | inDepth Blue | inDepth Pool |
|---|---|---|
| fēnix 5 | Verified ~40 m | — |
| fēnix 5S | Verified ~40 m | — |
| fēnix 5X | Verified ~40 m | — |
| fēnix 5 Plus | Verified ~40 m | ✓ |
| fēnix 5S Plus | Verified ~40 m | ✓ |
| fēnix 5X Plus | Verified ~40 m | ✓ |
| fēnix 7 | Depth unverified | ✓ |
| fēnix 7S | Depth unverified | ✓ |
| fēnix 7X | Depth unverified | ✓ |
| Descent Mk2 / Mk2i | Experimental | ✓ |
| Descent Mk2 S | Experimental | ✓ |
| Descent Mk3 43mm | Experimental | ✓ |
| Descent Mk3i 51mm | Experimental | ✓ |
Treat ~40 m as the practical limit on fēnix (case rated 10 ATM). More Garmin watches are planned — request a beta invite and we'll tell you when yours is supported.
How it works
Three steps. Wrist to phone.
- 01
Install over USB
Plug your Garmin in, click once, and the desktop installer puts the inDepth Blue app on your watch — done in a few seconds.
- 02
Dive
Dives auto-detect. Live depth, five surface-rest models, hang detection, depth alarms and on-wrist history run entirely on the wrist.
- 03
Sync & analyse
Open inDepth Sync on your phone to pull sessions over Bluetooth and go deep on the data — the graphs and trends no watch can render.
Training lengths instead of depth? inDepth Pool turns the same watch into a dynamic apnea trainer — automatic turns and laps, heart-rate charts on the wrist, workouts you build on your phone.
Now in beta
Dive it before everyone else.
inDepth Blue is in beta now. Leave your email and we’ll send you an invite — watch app, installer, and phone app together.
Store listings come with the public launch — beta installs today are by invite.
DesktopInstallerSoonDownload on theApp StoreSoonGet it onGoogle PlaySoon