Ulefone RugKing 4G, 16GB 256GB, Unisoc T7255, 9600mAh, 18W, Black

With a 9 600 mAh battery, a 126 dB rear speaker and triple IP68 / IP69K + MIL-STD-810H protection, this rugged companion proves dependable wherever dust, water or impacts are part of everyday life.

Extended autonomy and flexible charging

Delivers as much as 522 h on standby and 52 h of calls. It refuels at 18W through USB-C and also handles 5W reverse charging plus a 10W magnetic dock, handy for torches or external meters.

The sector's most potent loudspeaker

Thanks to its 36mm driver, 11.5cc cavity and Smart PA amplifier, it pushes 126dB free of distortion - ideal for alarms that must be heard in loud settings.

Sturdy performance and generous memory

The Unisoc T7255 octa-core powers clean Android 15 alongside 8GB LPDDR4X, expandable virtually to 16GB. Its 256GB UFS 2.2 can grow to 2TB with a microSD, keeping GIS, stocktaking or 1080p recording running smoothly.

Legible screen and useful cameras

The 5.99″ HD+ (910 nits) IPS panel favours readability under strong sun and lower energy use. A 50 MP Samsung JN1 camera captures work sharply; there's also a 2 MP macro, an 8 MP front sensor and underwater mode to 2 m.

Connectivity and on-site security

Worldwide 4G dual SIM, NFC with Google Pay, Wi-Fi ac, Bluetooth 5.0 and GPS/GLONASS/Galileo/BeiDou make payments and navigation easy. The side fingerprint reader and configurable key can be used with gloves.

Our expert's verdict

Set against the Doogee S41 Pro (6 000 mAh, Android 14) or the Oukitel WP23 (8 100 mAh, standard speaker), the RugKing shines for its longer battery life, the segment's loudest speaker and Android 15 without bloatware. The HD+ display and 18W charging might fall short for some, yet its mix of military toughness, 126dB audio and expandable storage delivers a price/performance ratio hard to beat for construction, logistics or adventure professionals who prize durability and sound output above all.

Technical Specifications Design and ruggedness Colour Black Protection rating IP68 / IP69K and MIL-STD-810H certification Dimensions 173.4 × 83.35 × 18.3 mm Weight 397 g Display Size 5.99″ IPS LCD (punch-hole) Resolution HD+ 1440 × 720 Brightness Up to 910 nits Coating Oleophobic anti-fingerprint coating Performance Processor Unisoc T7255 (UMS9230T), 8 cores up to 2.0 GHz CPU architecture 2 × Cortex-A57 2.0 GHz + 6 × Cortex-A55 1.8 GHz (12 nm) GPU Arm Mali-G57 (up to 750 MHz) Operating system Android 15 Memory and storage RAM 8 GB LPDDR4X Storage 256GB UFS 2.2 Upgrade microSD up to 2TB (dedicated slot) Cameras Rear 50 MP (Samsung JN1, f/1.75, 6 lenses) + 2 MP macro (OV02A10) with LED flash Rear video 1080p/30 fps, 720p/30 fps, 480p/30 fps Front 8 MP (Samsung 4H8, f/2.0, FOV 84°) Features Night mode, portrait, macro, HDR, timelapse, slow-motion, Pro mode, etc. Underwater mode Underwater photo/video with dedicated controls Sound Speaker "Loudest Speaker 126 dB, 3.5 W peak, 36 mm, 11.5 cc cavity; Smart PA Connectors 3.5 mm jack Battery and charging Capacity 9600 mAh (Li-ion polymer, non-removable) Charging 18 W via USB-C; 10 W charging dock; 5 W wired reverse charging Estimated battery life Up to 522 h standby / 52 h talk time Network and connectivity SIM Triple tray: Nano SIM + Nano SIM + microSD (Dual 4G simultaneously) 4G bands FDD-LTE B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28A/28B/66 3G / 2G bands WCDMA B1/2/4/5/8 / GSM B2/3/5/8 Wi-Fi 802.11 a/b/g/n/ac (2.4 and 5 GHz) Bluetooth 5.0 Positioning GPS, GLONASS, Galileo, BeiDou + digital compass NFC Yes, compatible with Google Pay Ports USB-C 2.0, 3.5 mm jack Security Biometrics Side fingerprint reader (0.1 s), face unlock Package contents Includes Ulefone RugKing, USB-C cable, documentation