Ocean MAP User Manual

01Getting Started

The first time you install and open the app, it walks you through:

1. Language — English · 한국어 · 日本語 · 中文 · Español · Deutsch · Français (7 languages)
2. Data consent — anonymous usage/diagnostics (PIPA/GDPR). Optional, changeable anytime.
3. Onboarding — key features as slides. (Replay later via Menu › Guide)
4. Legal notice — acknowledge it is an assist tool.

02Home · 5‑way Dial

The surface standby screen — clock/date in the center, a dial around it. Turn the Digital Crown to select a mode, tap the center (hub) or push the bezel to enter.

Turn the Crown to the 5th position and the center clock becomes a green “START DIVE” button. Tapping it starts the dive session and enters the three underwater pages. The bottom shows battery, No‑Fly, and Surface Interval (SI) timers.

03Dive Computer Setup

Everything is configured in one place — the PILOT screen. PILOT is the home dial's first focus, and its settings card holds all nine items (entry type · mode · nitrox · max depth · safety stop · ascent limit · water · depth zero · plan). Tap any row to edit it on the spot.

Settings

Underwater display (Scuba)

Depth · dive time · NDL · ascent rate · measured water temperature (Ultra temperature sensor) · safety-stop countdown. With nitrox, an EAN · MOD · CNS chip appears under the depth (hidden on air).

04Compass Mode Setup

Where GPS can't reach underwater, sensor fusion (accelerometer, gyroscope, magnetometer, depth) estimates your path so you can return safely to the start.

Dive type (4)

Five steps

• ① Mark start (R) — saves the entry point R (your return reference). Auto‑mark: whether you press START DIVE or just submerge, if no origin is set yet it is auto‑marked as R the moment you enter the water (including Explore / no setup).
• ② Waypoints — optional — Crown = distance, confirm with the Action button (or tap). Up to 9. Can be skipped.
• ③ Navigate — the dial rotates live with your heading. Put the orange target marker at the top (front) and swim forward. The current target number/marker (O) blinks inside the dial.
• ④ Arrival — within 3.5 m of the target: two strong taps + a green banner, and it auto‑advances to the next target (which then blinks).
• ⑤ Return (R) — press RETURN for live bearing & distance back to start R (the R marker is highlighted and blinks).

05Digital Map

The underwater map rotates like a compass (heading-up) — your direction of travel is always up and your position (white triangle) stays centred. Line the dotted target line up with the red lubber line at the top and swim straight. (Works after you mark the start.)

• Start R — an icon per entry type (⛱ beach / ⛵ boat / 🌴 island / 🚩 explore). Blinks while returning
• Red N — marks north on the rotating map edge · range rings — auto-scaled distance feel
• 🔶 Waypoints (orange diamonds) — the current target blinks; passed ones dim
• Your position — blinking white triangle, always centred
• Trail — your actual swum path drawn as a cyan line (key for Explore mode)
• Planned path — start→WP order as a dashed line
• Off‑path indicator — a red line + deviation badge if you stray too far
• Top: heading (HDG) & depth (DEPTH), plus direction/distance to start or boat

06The 3 Underwater Modes

Entering

On the surface, press START DIVE and descend (Home center 5th, or the Pilot screen). This starts the dive session so the app stays active underwater. Plain submersion (auto‑detect) also works, but START DIVE is recommended.

Three operating pages (settings hidden)

• Switch: turn the Digital Crown or swipe up/down (the page name flashes briefly)
• Display: lowering your wrist dims to system power-saving, but a black always-on dive view keeps depth, time, NDL and target updating every second. Raise your wrist for the full screen
• Touch: disabled by Water Lock → use Crown (adjust) + Action button (confirm)
• Exit: in PILOT preview use the top-left ‹ button; a real dive ends only by surfacing — no accidental exits underwater
• Surfacing: the dive ends automatically and a summary is shown

07Safety Indicators & Alerts

The app warns via haptics, sound, and on‑screen banners. (Underwater, mostly haptics due to Water Lock.)

Plus: distance/bearing to boat or start on ascent, surface‑interval & no‑fly timers, automatic dive log + GPS site saving.

08Legal & Disclaimer

Nature — an assist tool

• Ocean MAP is a backup (assist) tool, not a replacement for a certified dive computer.
• It is not certified to EN 13319 or any diving‑equipment standard.
• All values (depth, time, NDL, deco, bearing, distance, etc.) are for reference only and may be inaccurate due to sensor error, environment, or device state.

Safety responsibility

• Always dive with a certified primary dive computer/gauge, certified gear, and a buddy.
• Ascend slowly (recommended ≤ 9–10 m/min), observe safety stops, and dive within your certification and limits.
• Deco is an estimate (Bühlmann ZHL‑16C + conservative GF 40/85). Follow certified equipment and dive practice for actual deco obligations.
• Primary emergency response is always trained procedure and certified equipment; the app's SOS/alerts are supplementary.

Disclaimer

• The developer/distributor is not liable for any direct, indirect, or incidental damage, injury, or death arising from use or inability to use the app. Diving is inherently risky; all risk and judgment rest with the user.
• The app is not a medical device and provides no medical diagnosis, treatment, or advice.

Privacy · Data

• Location (GPS): used only to save dive‑site coordinates and aid return (off underwater).
• Motion sensors: accelerometer/gyro/magnetometer/depth used for on‑device EKF path estimation.
• Health (HealthKit): only if permitted, records completed dives as Apple Health underwater‑diving workouts (time · max depth).
• Anonymous usage/diagnostics: collected only with consent (PIPA/GDPR) and revocable anytime in settings. Personal data is never sent off without consent.