Device summary

Garmin

Instinct 3 50mm AMOLED

Suunto

Ocean

Full specifications

Full specifications
Basic information
Release year20252024
Starting price
Display size1.3-inch1.4-inch
Dimensions50.0 mm × 50.0 mm × 14.4 mm49.9 mm × 49.9 mm × 13.2 mm
Weight59 g99 g
Front materialSapphire crystal
Back materialGlass fibre reinforced polyamide
Display
Display technologyAMOLEDAMOLED
Resolution416 × 416466 × 466
ProtectionSapphire crystal
Performance
Storage32 GB
Expandable storageNo
Battery & charging
Charging standardGarmin proprietary clip / USB chargingUSB charging. Daily use up to 16 days / standby 26 days; dive 40–60 h; All-systems GNSS multi-band up to 50 h / single-band 65 h; power-saving GNSS up to 200 h (not everyday life)
Battery typeLithium-ionLithium-ion
Connectivity
CellularGPS / multi-GNSSGPS / GLONASS / Galileo / BeiDou / QZSS (dual-band), Offline outdoor maps (32 GB), Wireless Tank POD air integration, Bühlmann 16 GF decompression; scuba / nitrox / freedive
BluetoothBluetoothBluetooth
NFCYes
Build & durability
FrameFiber-reinforced polymer; metal-reinforced bezelGlass fibre reinforced polyamide; stainless steel bezel
Ingress protection10 ATM100 m (dive computer; max operating depth 60 m EN 13319)

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Thickness

    Ocean

    1.2 mm thinner

  • Display size

    Ocean

    0.1 in larger display · minor difference

  • Height

    Very similar height

  • Width

    Very similar width

Instinct 3 50mm AMOLED vs Ocean Size Comparison