Budget chinese rugged phones lately adopted mostly the 4.7-inch display as the standard size so anything else is quite the rare oddity. And for people looking for a cheap rugged phone which is even smaller we have today the AGM A2 model.
The AGM A2 has only 4-inch screen, albeit with mere 800 x 480 pixel resolution, but protected by Gorilla Glass 3. Body itself is built like a tank and has the necessary IP68 certification and considering the small size it’s pretty heavy with 225g. Inside ticks the older but very power efficient Snapdragon 210 supported by 2 GB RAM and 16 GB of expandable storage. Phone is dual SIM, has 8 Mpix + 2 Mpix cameras, compass, NFC, 2600 mAh battery and ancient Android 5.1 as the OS.
AGM have a wide range of Snapdragon-powered rugged models and the A2 is really at the bottom of the food chain in all of the aspects. Still could be an interesting option for those looking for smaller than usual rugged device. You can find more information about it on the official website or the company Facebook page.