ASTRAASTRA
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SYS.ONLINEN 47°23′12″ · E 011°04′58″
SIG.42dBmALT 2,847m
REF · MDL.APO-01
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ASTRA / FIELD SERIES / 001

Built for
where signal ends.

Titanium chassis. Multi-sensor HUD. An operating system designed around one question — will it survive the day.

02.5 · WHO IT'S FOR

Not for everyone.
Built for the ones who go further.

ASTRA is a field instrument first, a smartwatch second. If the trail ends where the map does, this is your wrist.

ASTRA Prototype One HUD face worn on the wrist at alpine dusk showing compass, altimeter, and biometric readouts
LIVE.HUDFACE / TACTICAL 01
ALT 2,847m · HR 86REC
  • 01

    Alpine & backcountry

    Mountaineers, ski tourers, and thru-hikers who need altitude, barometric trend, and dead-reckoning navigation when the cell tower is a memory.

    ALTBAROGPS-INDEP
  • 02

    Search & rescue, tactical

    SAR teams, wildland responders, and field operators who need a watch that clears MIL-STD-810H drop, thermal, and immersion — with glove-friendly haptics.

    MIL-STD-810H10 ATMNVG-SAFE
  • 03

    Endurance athletes

    Ultra runners, adventure racers, and expedition cyclists tracking HR, SpO₂, and pace over 42-day battery windows — no daily charging, no excuses.

    HRSpO₂42D BATT
ASTRA Prototype One worn on the wrist at alpine dusk
02 · IN THE FIELD

All conditions.
No compromise.

Rated to −40°C. Sealed to 10 ATM. Solar-augmented, GPS-independent dead reckoning. When the trail runs cold, the watch keeps working.

TEMP
−40°C
DEPTH
100M
BATT
42D
03 · ANATOMY

Every millimeter,
engineered.

Nine discrete subsystems. Titanium bezel to fluoroelastomer strap — fully serviceable, fully labeled.

ASTRA Prototype One exploded view showing bezel, sapphire glass, micro-OLED, casing, main PCB, battery, sensor module, and strap assembly
REV.APO-01 / EXPLODED09 SUBSYSTEMS

← swipe · pinch to zoom →

03.1 · SUBSYSTEMS

What's inside, part by part.

01 / SUBSYSTEM

Main Zirconium Bezel

Matte-finished zirconium ring, machined from a single billet. Numeral index laser-etched to 0.02mm.

02 / SUBSYSTEM

Sapphire Glass

1.4mm sapphire crystal, Mohs-9 hardness. Anti-reflective coating on both faces.

03 / SUBSYSTEM

Multilayer Micro-OLED

1.8″ transparent AMOLED stack, 466×466, 3,000 nits peak, individually addressable HUD layer.

04 / SUBSYSTEM

Main Casing Body

Matte zirconium mid-case. Integrated crown guards, four M1.4 tri-point screws.

05 / SUBSYSTEM

Astra S1 Processor Board

Main PCB with S1 SoC, GPS / GNSS module, Bluetooth 5.3, Wi-Fi 6, and 32GB flash memory.

06 / SUBSYSTEM

Lithium-Ion Battery

620 mAh rechargeable cell. 42-day typical, 12-day GPS-continuous. USB-C, 45 min to full.

07 / SUBSYSTEM

Taptic Engine

Linear actuator tuned for gloved wear. Directional pulse patterns for silent nav cues.

08 / SUBSYSTEM

Rear Sensor Module

6-axis IMU, PPG heart rate, SpO₂, skin temperature, and ECG contacts in a sealed housing.

09 / SUBSYSTEM

Strap Assembly

Fluoroelastomer band, orange inserts, forged steel buckle. Quick-release on both lugs.

ASTRA Prototype One displaying HALO jump telemetry inside a military aircraft at high altitude
MISSION.PROFILE // HALO

Altitude 19,800 ft.
All green.

From freefall to final approach, ASTRA reads altitude, airspeed, descent rate, and oxygen status — so you can focus on the jump.

04 · DISPLAY

One glance.
Everything you need.

A 1.8″ AMOLED with terrain compass, dual-metric rings, and a real-time altitude ridge. Legible under noon sun, dim enough for night ops.

TERRAIN COMPASS
ACTIVE
HEART RATE
72 BPM
ELEVATION
2,847 M
PACE
19.96 MPH
19.96 mph
72 bpm
853
23.7°C
2880M
05 · HEALTH INTELLIGENCE

Nine sensors. One picture of you.

SENSOR / 01

6-lead PPG

Continuous heart rhythm sensing with clinical-grade accuracy.

SENSOR / 02

SpO₂ + VO₂ Max

Blood oxygen and aerobic capacity, tracked passively.

SENSOR / 03

Skin Temp

Detects trends before you feel them — illness, fatigue, altitude.

SENSOR / 04

Stress Index

HRV-derived readiness score, updated every 60 seconds.

ASTRA Prototype One displaying topographic route navigation at 5,200m altitude
FIELD.LOG // 04:12

Route recalculated.
5,200 m and climbing.

Offline topographic maps, live weather, and turn-by-turn guidance — engineered to work where signal doesn't.

06:12Sunrise · Golden hour begins
06:38Ascent detected · +142m
07:04Weather: front approaching
07:22HR anomaly resolved
07:45Descent recommended · storm 42min
06 · ASTRA OS

An OS that reads the terrain.

Contextual glances. Predictive alerts. Weather, elevation, and biometric data fused into a single readout that anticipates the next hour, not the last one.

ASTRA Prototype One on a climber's wrist above an alpine glacier with a summit refuge in the distance at dusk
WAYPOINT // SUMMIT 04:45

Where the trail
runs out.

Offline topo maps, cached waypoints, and dead-reckoning nav — so the last mile isn't the one that stops you.

07 · BENCHMARK

How it stacks up.

SPECIFICATIONASTRA APO-01COMPETITOR ACOMPETITOR B
Case materialGrade-5 TitaniumAluminumPolymer
Battery life42 days18 hours14 days
Operating temp−40°C to 70°C0°C to 35°C−20°C to 55°C
Water rating10 ATM5 ATM10 ATM
Sensor count967
GPS-independent navYesNoNo
08 · TECHNICAL

Specifications.

CASE
45.2 × 45.2 × 14.1 MM
WEIGHT
68 G
DISPLAY
1.8″ AMOLED · 466×466
BRIGHTNESS
3,000 NITS
GLASS
SAPPHIRE CRYSTAL
BATTERY
620 MAH · 42 D
CHARGE
USB-C · 45 MIN
GNSS
GPS · GLONASS · GALILEO · BEIDOU
CONNECTIVITY
BT 5.3 · WI-FI 6 · LTE
MEMORY
32 GB
SENSORS
9 · PPG · SPO2 · ECG · TEMP
COMPLIANCE
MIL-STD-810H · 10 ATM
09 · PROTOTYPE

Conceptual
technology.

ASTRA Prototype One is a design and engineering study — a proof of what's possible when hardware, software, and terrain intelligence are built as one system.

EARLY ACCESS TARGET · 2028

This page is a showcase of the vision, not a live product page. Early access and field-testing programs are planned for 2028.

NO PRE-ORDERSR&D · ACTIVE