Both are IP69K rugged and still relatively slim. The prices are almost the same.

Short answer

Oscal Marine 3 - 8 GB RAM, 18 W, 10.7 mm and 245 g. Cubot KingKong ES Pro - 64 MP camera, 16 MP selfie, 5100 mAh.

Key differences

SpecOSCAL MARINE 3Cubot KingKong ES Pro
ChipMediaTek Helio G81UNISOC T7255
Display6.56", IPS LCD, 720×1612, 90 Hz6.56", IPS LCD, 720×1612, 90 Hz
RAM / storage8/128 GB, 8/256 GB6/64 GB, 6/128 GB
Rear cameras16 MP + 13 MP64 MP + 2 MP
Front13 MP16 MP
Battery5000 mAh5100 mAh
Charging18 W10 W
ProtectionIP68/IP69KIP68/IP69K
Thickness / weight10.7 mm / 245 g12.8 mm
Pricecurrent pricescurrent prices

Specs come from the device pages on Smartphone.ua.

Chips

MediaTek Helio G81 and UNISOC T7255 - a similar level.

Cameras

64 + 2 MP on the Cubot vs 16 + 13 MP on the Oscal.

Memory

8/128-256 GB on the Oscal vs 6/64-128 GB on the Cubot.

Verdict: who should buy which

  • Memory and slimness - Oscal Marine 3.
  • Camera - Cubot KingKong ES Pro.

FAQ

Are both rugged?
Yes, IP68/IP69K.

How thick is the Cubot?
12.8 mm.

Which is cheaper?
The Marine 3.

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