Overview

When the LG G8X ThinQ debuted in late 2019, LG took a bold detour from the emerging foldable display trend. Instead of fragile flexible glass, LG bundled a secondary 6.4-inch OLED panel into a detachable clip-on case. Powered by the Qualcomm Snapdragon 855 chipset alongside 6GB of RAM and 128GB of internal storage, it offered true hardware multitasking at a fraction of a foldable's price.

Looking at the G8X ThinQ from a 2026 ownership perspective, it occupies a niche space. While LG's departure from the smartphone market frozen official updates at Android 12, the hardware remains capable of day-to-day tasks, basic media playback, and hi-fi audio streaming. However, keeping this dual-screen setup alive long-term requires navigating hardware wear and a shrinking pool of original spare parts.

Design and build

The standalone LG G8X ThinQ follows a classic glass-and-metal sandwich construction. Up front sits Gorilla Glass 6 protecting the main 6.4-inch OLED panel, while Gorilla Glass 5 covers the rear over an aluminum chassis. It carries an IP68 dust/water resistance rating alongside MIL-STD-810G compliance, making the bare phone surprisingly durable against everyday drops.

The optional Dual Screen case changes the equation significantly. It adds a secondary identical 6.4-inch OLED display on the left, plus a tiny monochrome cover display on the outside front for notifications. While the combination feels solid in hand, the hinge mechanism and internal ribbon cables inside the case add extra points of mechanical failure over standard phone designs.

Everyday performance

In everyday use, the Snapdragon 855 processor handles standard app navigation, video playback, and casual gaming respectably well. The 6GB of RAM is sufficient for standard single-screen use, though running two heavy apps simultaneously across both displays will push the hardware toward its thermal and memory limits.

The real highlight for media enthusiasts remains LG's signature 32-bit Hi-Fi Quad DAC. Paired with a standard 3.5mm headphone jack, the G8X ThinQ drives high-impedance audiophile headphones with impressive clarity—a feature that modern flagship smartphones have completely abandoned.

Battery, durability, and longevity

A 4000 mAh Li-Po battery powers the device. When used as a standalone phone, power efficiency is decent. However, running both OLED panels off that single internal battery drains charge rapidly, often cutting runtime down to half a day during heavy dual-screen use.

Because the phone relies on a glued back cover, replacing an aged battery requires heating the rear glass, slicing through sticky waterproofing adhesive, and disconnecting delicate internal flex cables. Furthermore, as the device ages, finding fresh factory-grade batteries requires careful vendor vetting, as many third-party cells lack true nominal capacity.

Common issues owners hit

Long-term owners frequently encounter a few specific hardware bottlenecks:

• USB-C Port Wear: Inserting and removing the phone from the Dual Screen attachment places mechanical stress on the primary USB-C port, eventually leading to loose connections or charging failures.
• Lost Magnetic Charging Adapters: Charging the phone while inside the Dual Screen case requires a tiny, magnetic pogo-pin dongle that is notoriously easy to misplace.
• Display Tinting and Burn-in: Over years of operation, the OLED displays may develop uneven brightness, green tinting at low levels, or status bar burn-in.
• Software End-of-Life: Remaining on Android 12 means some modern banking and enterprise security apps may eventually drop support.

If you are diagnosing hardware quirks or planning a battery service, you can consult our detailed guides on the LG G8X ThinQ device page and explore troubleshooting steps in our general problems hub.

Who it's for

The LG G8X ThinQ is best suited for audio enthusiasts who want a dedicated portable digital audio player (DAP) with smartphone capabilities, retro mobile collectors, or budget tech tinkers who enjoy dual-screen multitasking without paying modern foldable prices. It is less suited for mainstream users who require modern security updates or straightforward serviceability.

Bottom line

The LG G8X ThinQ remains a creative, highly functional piece of hardware that aged better than many expected. If you appreciate physical headphone jacks, expandable storage, and secondary screens, it holds real charm—just be prepared to manage aging battery performance and scarce hardware replacement parts.

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