AGM announces its first super-rugged 5G smartphone, discounts on all previous models - PhoneArena
OUKITEL WP21 Ultra, Rugged Smartphone, 12GB+256GB
Rugged smartphone - Wikipedia
Unihertz Atom, The Smallest 4G Rugged Smartphone in The World, Android 9.0 Pie Unlocked Smart Phone with 4GB RAM and 64GB ROM (Support T-Mobile & Verizon only)
Ulefone Unveils the Rugged Armor 23 Ultra at MWC 2023, Setting a New Standard for Rugged Smartphones - Gizchina.com