Oukitel WP21 Ultra

The Oukitel WP21 Ultra is a rugged smartphone built for extreme environments, launching in 2023 and carrying the “Ultra” badge for a reason: it combines military-grade durability with a larger-than-average FHD+ AMOLED display and a versatile camera array. Even as newer models pop up in 2025, the WP21 Ultra stands out for those who prioritize durability and reliable functionality over glossy design.

• Release Date: 2023
• Display: 6.78-inch FHD+ AMOLED, 120Hz refresh rate
• Processor: MediaTek Helio G99 (6nm)
• Camera: Triple rear setup: 64MP main, 20MP night vision, 8MP ultra-wide
• Operating System: Android 12 (ships out-of-the-box)
• Durability: MIL-STD-810H certified, IP68/IP69K rated for water, dust, and drop resistance
• Connectivity: 4G LTE, dual-band Wi-Fi (Wi-Fi 5/802.11ac), Bluetooth 5.2
• Build: Reinforced frame with ruggedized corners

The Oukitel WP21 Ultra is purpose-built for people who put their tech to the test: hikers, field workers, travelers, and the seriously clumsy. If you need a device that's more “boulder-resistant” than “boardroom-ready,” you’ll get more from the WP21 Ultra than from a standard glass-and-steel phone. Its large, bright display is well-suited for outdoor use, but if you’re looking for the latest 5G speeds or a sleek, pocket-friendly design, there are more modern options like the Samsung Galaxy S23 or Pixel 8.

Opting for a refurbished Oukitel WP21 Ultra means less waste, more adventure. Every pre-owned device at Back Market undergoes rigorous quality checks—so you get all the durability without new-device guilt. Learn more about our quality standards.