Doogee S90: Affordable, waterproof, rugged smartphone with a modular twist
Doogee - S90 walkie-talkie module delivers dependable, instant communications in remote area up to 6km range. It's perfect companion for your wilderness adventures or hunting and emergency preparedness. | Facebook
DOOGEE S90 opens modular smartphone era, allows users to switch modules at will - Gizchina.com
Doogee S90 modular phone turns into night vision camera, walkie talkie, and is rugged to boot: review | South China Morning Post